26-0625 md rtu labor rfp addendum no 2 unabridged.pdf

PDF 6 MB Posted Jun 26, 2026

Attached to: 2026 RTU Replacements State and local contract opportunity
Solicitation number: RFP MDP 260000002249 3
Issued by: Berrien County, Mcbride Village, Michigan

About this file

Written by GovTribe AI · Jun 29, 2026

This is an Addendum No. 2 to a Request for Proposal (RFP) issued by Madison District Public Schools for the 2024 Sinking Fund 2026 RTU Replacement project, dated June 25, 2026. The addendum modifies proposal requirements and includes supplementary documentation necessary for contractors to submit competitive bids. The project involves the replacement of rooftop unit (RTU) heating and ventilation systems at Wilkinson Middle School. A voluntary pre-proposal meeting and site tour were conducted on June 24, 2026, at 2:00 PM at Wilkinson Middle School, with attendance from the school district's Director of Operations, Plante Moran Realpoint as the owner's representative, Strategic Energy Solutions as the project designer, and Griffin International as the equipment manufacturer. The deadline for submitting written questions was Friday, June 26, 2026, by 2:00 PM EST, with proposals due Wednesday, July 1, 2026, by 2:00 PM EST. Proposer interviews are tentatively scheduled for Friday, July 3, 2026. All contractors must acknowledge receipt of the addendum in their proposal submission. Equipment delivery is currently undetermined but will occur after the start of school on August 2, 2026, with all RTU lifting and setting work required to take place during school off-hours (after school, weekends, and holidays).

The contractor must include in the base bid proposal the cost of painting existing exposed natural gas piping (approximately 25 linear feet at each location) with surface preparation per manufacturer recommendations, and removal and replacement of existing roof-mounted supports (4 each location). Contractors are explicitly instructed that they shall NOT include the cost of the RTUs themselves in their bids, as the owner is prepurchasing the equipment through Griffin International. All other materials, means and methods, labor, start-up, warranties, and related costs are to be included in the contractor's base bid. Shop drawings for three RTUs (RTU-5, RTU-7, and RTU-12) were provided as Attachment C, with RTU-5 being an HTDM-600-82-DX-MZ4 model with 488 MBH input and multi-zone capability, and RTU-7/12 units being HTDM-400-82 models with 312 MBH input each. No roofing work is required for this project, as the new units will sit on existing RTU curbs. The units are equipped with natural gas indirect-fired heat exchangers, variable frequency drives, BACnet controls, and modulating gas valves with integrated burner controls.

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Plante Moran Realpoint 3000 Town Center, Suite 100

Southfield, MI 48075

Tel: 248.223.3500 | Fax: 248.223.3150 pmrealpoint.com

2024 Sinking Fund: 2026 RTU Replacements

Addendum No. 2

CLIENT: Madison District Public Schools

PROJECT: 2024 Sinking Fund – RTU replacements

DATE: June 25, 2026

1. This Addendum No. 2 to the Request for Proposal (RFP) dated June 25, 2026, is issued during the Proposal period to revise the Proposal requirements as stated herein. Proposers shall acknowledge receipt of this Addendum by inserting the number and date of this Addendum in the space provided in the appropriate Proposal form.

2. The agenda, and meeting minutes from June 24, 2026, voluntary Pre-Proposal meeting and site tour are included in this Addendum as Attachment A (three pages).

3. ‘MD Responses to Proposers Questions’ matrix reissued (unchanged from Addendum No.

1 as no new questions received as of this Addendum) as Attachment B (one page) to this Addendum.

4. Griffin International, LLC shop drawings for three RTUs issued as Attachment C (thirty nine pages) in this Addendum.

5. Contractor shall include in their base bid proposal the following scope changes:

a. Paint existing exposed natural gas piping (approx. 25 LF each location). Prepare existing pipe surfaces to receive painting per manufacturer’s recommendations.

b. Contractor shall remove and replace existing roof mounted supports (4 each location).

End of Addendum

Plante Moran Realpoint 3000 Town Center, Suite 100

Southfield, MI 48075

Tel: 248.223.3500 | Fax: 248.223.3150 pmrealpoint.com

Meeting Minutes CLIENT: Madison District Public Schools PROJECT: 2024 Sinking Fund – 2026 RTU replacement project SUBJECT: Contractor Voluntary Preproposal Meeting DATE & TIME: June 24, 2026, 2:00 PM LOCATION: Wilkinson Middle School

DISTRIBUTION: RFP Addendum No. 2 ATTENDEES: See Attached

1. Introductions

a. Owner: Madison District Public Schools (MD)

i. Rick Malak, Director of Operations

b. Owner’s Rep: Plante Moran Realpoint (PMR)

i. Ronald Zuhorski, Senior Vice Present

1. Point of contact for the client – communications to be routed through.

c. Project Designer, Strategic Energy Solutions, Inc.

i. Robert Roop, Mechanical Technical Leader

d. Equipment manufacturer, Griffin International, LLC

i. Timothy T. Terry, Senior Sales Engineer

2. Information on Content of Pre-proposal Meeting

a. Anything said or inferred in this meeting is not binding and only the information published in the RFP or subsequent addenda will be considered binding.

b. It is recommended that questions are submitted in writing per the RFP instructions.

3. Proposal Specific Information

a. Respondents are reminded that per RFP, the deadline for submitting questions is Friday, June 26, 2026, by 2:00 PM EST.

b. Meeting minutes will be issued in an addendum following this meeting. Addendum will include any questions submitted to date.

c. Proposers are reminded that there is a section in the Proposal form to acknowledge addenda.

d. Proposals are due Wednesday, July 1, 2026, not later than 2:00 PM EST delivered at the address noted on the RFP cover page.

Ron.Zuhorski Text Box

RTU RFP ADDENDUM 2 - ATTACHMENT A

Madison District Public Schools | 2024 Sinking Fund

2026 RTU Replacement Project

RFP Voluntary Preproposal Meeting

Page 2 June 24, 2026

e. Proposer interviews will be by invitation only and are tentatively scheduled for Friday, July 3, 2026. Exact time and date to be confirmed.

f. PMR highlights language in RFP regarding successful contractor shall be assigned the Owner’s prepurchase package responsibility.

i. Contractors shall NOT include cost of RTUs as described in forthcoming shop drawings in their bid. All other materials, means/methods, labor, start-up, warrantees and other, per the RFP contract, shall be included in contractors base bid.

g. Contractors are encouraged to include any clarifications or exceptions to their proposal in the RFP response.

4. Schedule

a. PMR informs contractors equipment delivery date is currently undetermined but shall be after start of school on August 2, 2026.

i. Contractors are instructed that any lifting work to set the RTUs must take place during school off hours (after school, weekends, holidays, etc.).

ii. Contractors are instructed any make-ready work may be performed in coordination with the District in advance of setting the RTUs while avoiding normal school operations.

5. Open discussion

a. As no conversations were binding, no questions recorded here. Proposers were directed to submit official questions per RFP directions for official / binding responses.

6. A site walk-through was provided by the District to the Contractors allowing access to any and all areas as requested by the contractors present.

7. Adjournment

Proposer Question Clarenceville Answer Response Issued Via

1 Looking at the documents it looks like the new RTU’s are sitting on the existing RTU curb.

What roofing is required for this project?

No roofing will be required

Addendum No. 1

Addendum No. 2 - Attachment B

REQUEST FOR PROPOSALS SERVICES for

MADISON DISTRICT PUBLIC SCHOOLS

2024 SINKING FUND PROGRAM:

2026 RTU REPLACEMENT PROJECT

RESPONSE TO PROPOSER QUESTIONS MATRIX

Proposer's shall understand that, regardless of responses indicated below, In all projects and considerations, it shall be the District’s right to manage budget as they see fit including reductions or increases in scope per building or adding/eliminating buildings or projects while staying within the stated anticipated SLCW.

6/25/2026 page 1 of 1

SUBMITTAL DOCUMENTS

Project: Madison District Public Schools – RTU

Replacement – Wilkinson Middle School Engineer: Strategic Energy Solutions, Inc.

Equipment Tag:

Spec Section:

RTU-5, 7, & 12

23 7416 Custom Rooftop Single & Multi- Zone Packaged Units

Date: June 23, 2026

Representative: Griffin International (586) 948-2700

Revision:

For Approval for Release to Production

Ron.Zuhorski Text Box

RTU RFP ADDENDUM 2 - ATTACHMENT C

HOLD FOR APPROVAL RELEASED TO PRODUCTION

0 ISSUED FOR REVIEW June 10, 2026 CL JC 1 UPDATED UNIT DESIGN TO FIT SITE LOCATION June 17, 2026 CL JC

JOB STATUS

UNIT(S) WILL NOT BE RELEASED FOR PRODUCTION UNTIL

APPROVED DRAWINGS ARE RETURNED. FACTORY IS

CURRENTLY SHIPPING 16-20 WEEKS FROM RETURN OF

APPROVED DRAWINGS.

SCHEDULED FOR SHIPMENT FROM CALGARY DURING THE

WEEK OF ______________

(PLEASE ADVISE SALES BRANCH IMMEDIATELY IF THERE

ARE ANY PROBLEMS WITH THIS DATE)

REVISION LOG

REV. ISSUE STATUS DATE ORIGINATOR APPROVED

PROJECT NAME:

WILKINSON ELEMENTARY SCHOOL

ICE WESTERN TAG(S):

RTU-5

PROJECT TAG(S):

RTU-5

ICE WESTERN MODEL:

HTDM-600-82-DX-MZ4

CONTRACTOR:

GRIFFIN INTERNATIONAL

CONSULTANT:

Date Created: June 10, 2026 Factory Job No: C26-93A

PROJECT: WILKINSON ELEMENTARY SCHOOL

ICEW TAG: RTU-5

PROJECT TAG: RTU-5

ICEW MODEL: HTDM-600-82-DX-MZ4

CONTRACTOR: GRIFFIN INTERNATIONAL

CONSULTANT: --

EQUIPMENT DATASHEET

DESIGN CONDITIONS INDIRECT FIRED - GAS PERFORMANCE

LOCATION EXCHANGER EFFICIENCY:

ALTITUDE (ABOVE SEA LEVEL) GAS TYPE & CONNECTION SIZE:

NUMBER OF UNITS GAS INLET PRESSURE:

UNIT CONSTRUCTION TEMPERATURE RISE:

UNIT LOCATION & HANDING MANIFOLD TYPE:

ROOF GAUGE AND MATERIAL 18 GA. BURNER TYPE:

WALL GAUGE AND MATERIAL 18 GA. BURNER CONTROL:

FLOOR GAUGE AND MATERIAL 16 GA. DESIGN GAS INPUT:

LINER GAUGE AND MATERIAL 20 GA. DESIGN GAS OUTPUT:

ROOF CURB GAUGE AND MATERIAL N/A

BASE FRAME - TYPE / SIZE SUPPLY FAN

INSULATION THICKNESS / DENSITY / TYPE BLOWER MODEL NUMBER

PAINT TYPE & COLOR MAXIMUM SUPPLY AIR VOLUME

DOOR CONSTRUCTION MINIMUM SUPPLY AIR VOLUME

ESTIMATED TOTAL UNIT WEIGHT EXTERNAL STATIC PRESSURE

TOTAL STATIC PRESSURE

OUTDOOR AIR DAMPER FAN RPM

TYPE: MOTOR TYPE

CONSTRUCTION: HORSEPOWER

WIDTH: BRAKE HORSEPOWER

HEIGHT: VFD HP / TYPE

RETURN AIR DAMPER RETURN FAN

TYPE: BLOWER MODEL NUMBER

CONSTRUCTION: MAXIMUM RETURN AIR VOLUME

WIDTH: MINIMUM RETURN AIR VOLUME

HEIGHT: EXTERNAL STATIC PRESSURE

TOTAL STATIC PRESSURE

EXHAUST AIR DAMPER FAN RPM

TYPE: MOTOR TYPE

CONSTRUCTION: HORSEPOWER

WIDTH: BRAKE HORSEPOWER

HEIGHT: VFD HP / TYPE

SUPPLY AIR DAMPER FILTER - 1

TYPE: TYPE:

CONSTRUCTION: MAKE & MODEL:

WIDTH: QUANTITY:

HEIGHT: SIZE:

POWER SECTION

POWER SUPPLY TOTAL MOTOR AMPS

TOTAL UNIT AMPS UNIT MCA (FEEDER AMPS)

MAXIMUM TIME DELAY FUSE MAXIMUM BREAKER SIZE

MINIMUM CONDUCTOR SIZE CONTROLS CONDUCTOR SIZE

50 AMPS

143.02 kW 400 MBH 117.28 kW

5,427 L/S

224 Pa

DATA

30.61 AMPS

37.7 AMPS

NATURAL GAS 1"

488 MBH

METRIC

ROSENBERG - GHKM-500

11,500 CFM

3.21 kW 610 mm

IMPERIAL METRIC

1778 mm

METRIC

762 mm

0.90 in.wc

32.0 in.

24"x24"x2"

40.0 in.

813 mm

1016 mm

762 mm

IMPERIAL

24.0 in.

PARALLEL BLADE

TAMCO 1000 ALUMINUM AIRFOIL BLADE

70.0 in.

30.0 in.

70 AMPS

18 AWG

HORIZONTAL DOWN FLOW

RIGHT HAND UNITOUTDOOR

11.19 kW15.00 HP

FILTER SHOP - TP4000CP

1372 mm

54.0 in.

FENWAL - GAS IGNITION CONTROL

0.50 in.wc 125 Pa

0 CFM 0 L/S

1452 RPM

N/A

54.0 in.

TAMCO 1000 ALUMINUM AIRFOIL BLADE

METRIC

MULTI ZONE DAMPER

N/A

IMPERIAL METRIC

32°F 18°C

STANDARD - DUAL SOLENOID

MAXON - NP

7-14 W.C.

82%

DELHI - DPL22DP

11,500 CFM

2.00 in.wc

5,427 L/S

498 Pa

IMPERIAL

GALVANNEAL - PAINTED

ENAMEL - I.C.E. WESTERN GREY

STANDARD HINGED DOOR - ALLEGIS HANDLE

5800 LBS 2633 kg

IMPERIAL

ALUMINUM

C4x5.4

A L

H A

A L

IMPERIAL

2" - 1.5 lb/ft³ - MAT FACED - GLASS MINERAL WOOL

METRIC

15 HP TEFC

3.52 in.wc

8.67 HP 6.47 kW

610x610x50mm

PARALLEL BLADE

1 3C x #8

30.0 in.

877 Pa

IMPERIAL METRIC

DETROIT, MI

GALVANNEAL - PAINTED

183m600'

DANFOSS FC-101

1372 mm

0 CFM 0 L/S

METRIC

PARALLEL BLADE

TAMCO 1000 ALUMINUM AIRFOIL BLADE

IMPERIAL

15.00 HP

2" - MERV 8 - PLEATED THROWAWAY

0.00 HP

IMPERIAL METRIC

N/A

4.30 HP

ELECTRONICALLY COMMUTATED (ECM)

12.07 HP 9.00 kW

1342 RPM

33.17 AMPS

460-3-60

ROOF CURB BY ICE WESTERN FITS ON EXISTING ROOF CURB

BASE FRAME W/ ANGLE

TAG: RTU-5

1- ICEW MODEL HTDM600-DX-MZ4 OUTDOOR HORIZONTAL DOWN DISCHARGE INDIRECT HEAT VENT COOL MULTI ZONE UNIT W/ JUST DX COOLING COIL PLENUM AND 4 ZONES

488 MBH INPUT 400 MBH OUTPUT (MINIMUM 82% EFFICIENCY)

S/A 11,500 CFM @ 2” W.C. ESP 15 HP PREMIUM HIGH EFF. TEFC MOTOR 460/3/60

R/A 11,500 CFM @ 0.5” W.C. ESP (2) 4.5KW PREMIUM HIGH EFF. ECM MOTOR 460/3/60

7-14” W.C. NATURAL GAS MANIFOLD

C/W STAINLESS STEEL DRUM AND TUBE HEAT EXCHANGER

POWER BURNER W/ 50:1 TURNDOWN

STAINLESS STEEL CHIMNEY

WEATHER HOUSING W/ HEATER AND VENT FAN AND DANFOSS FC101 VFD FOR THE SUPPLY AND CONDENSER FAN MOTORS

STAINLESS STEEL CHIMNEY EXTENDED 3 FEET ABOVE VESTIBULE

STAINLESS STEEL GRAVITY FLUE BOX W/ DRAIN

INLET LOUVER W/ BIRD SCREEN

RELIEF HOOD W/ BIRD SCREEN

MIX BOX W/ RELIEF

TAMCO 1000 LOW LEAKAGE F/A DAMPER W/ MODULATING ACTUATOR

TAMCO 1000 R/A DAMPER W/ MODULATING ACTUATOR

TAMCO 1000 LOW LEAKAGE RELIEF DAMPER

MIX BOX CONTROLS/ENTHALPY

FILTER SECTION W/ 2” MERV 8 FILTERS

S/A BLOWER SECTION W/ DIRECT DRIVE AIRFOIL PLENUM FAN W/ INTERNAL SPRING VIBRATION ISOLATION

R/A BLOWER SECTION W/ DIRECT DRIVE AIRFOIL PLENUM FAN

COOL BLUE/ALLEGIS RINGS

HOT DECK COLD DECK PLENUMS

MULTIZONE DAMPER W/ 4 ZONES W/ ACTUATORS

DX COIL PLENUM W/ 304 S.S. DRAIN PAN FOR FUTURE DX COIL

MODULATING GAS VALVE W/ DISCHARGE AIR SENSOR AND REMOTE TEMPERATURE SELECTOR

INLET AIR CONTROLLER

AUTO LOW LIMIT

NEMA 4 CONTROL PANEL

BACNET DDC CONTROLLER W/ SMART SPACE SENSOR (FILTER MONITOR)

R13 DOUBLE WALL HINGED ACCESS DOORS W/ ALLEGIS HANDLES AND TRIM SEAL GASKETS AND FULL-LENGTH STAINLESS-STEEL PIANO HINGES

STAINLESS STEEL GUTTERS

FULLY WELDED STRUCTURAL STEEL CHANNEL BASE FAME W/ R13 SPRAY FOAM INSULATION

18 GAUGE GALVANIZED EXTERIOR CASING

2” 1.5 LB DENSITY ROCK WOOL INSULATION

22 GAUGE GALVANIZED INTERNAL LINER

PAINTED EXTERIOR

NEMA 3R MAIN FUSED DISCONNECT SWITCH

MARINE LIGHTS AND SERVICE RECEPTACLES FOR SEPARATE 120V POWER

FITS ON EXISTING ROOF CURB

0 CL JC

1 CL JC

ISSUE STATUS

BASE FRAME W/ LINER

ORIGINATORDATE

ROOF CURB BY OTHERS NO ROOF CURB

June 17, 2026

REVISION LOG

June 10, 2026

APPROVED

UPDATED UNIT DESIGN TO FIT SITE LOCATION

ISSUED FOR REVIEW

REV.

STRUCTURAL STAND BY OTHERS

SUBMITTAL Date: Page 1 of 2 Project No:

Project Name:

Location:

Engineer:

Architect:

Reference: 6/10/2026 4:02:25 PM Equipment Tag

Model Information Model:

CFM:

SP:

RPM:

BHP:

Part Number:

Shaft Diameter:

Wheel Diameter:

Tip Speed:

Static Efficiency:

Outlet Velocity:

Unit Weight:

Ship Weight:

Elevation:

Temperature:

DPL27DP

11500 3.52 8.67

27.95

9820 FPM

2603 FPM

Sound Data

(dB) (Hz) LwA:

SONES:

18.5

Performance Curve

June 10, 2026 Submitted by:

Contractor:

Ducted inlet or ducted outlet dBA @5 ft. 70 Ducted inlet and ducted outlet dBA @5 ft. 50 Sound Power Level @

Frequency, re: 10^-12 Watts v: 13.0.67

Data Sheet

Curve:

Type:

Part no.:

GKHM 500-CIB.160.6IF IE Gen3

N88-50317

16,00012,0008,0004,0000

5.5

4.5

3.5

2.5

1.5

0.5

4 V

6 V

7 V

8 V

9 V

10 V

66 65 66

76 75

80 79

84 83

87 86

88 87 qv [cfm] pf s [ inW G]

Quantity: 2 ρ: 1.15 kg/m³ ; Data @ 400 V

Module Classic

Operating Point:

qV 11500 cfm pfs 0.9 inWG pfd 0.21 inWG ηed,fs 37.9 % ηed,tot 46.7 % Ped 3.21 kW I 5.1 A n 1452 r/min LWA A,IN 85 dB(A)

UC 7.2 V

v 31.1 ft/s SFP 591 Ws/m³ tR, OP 60 °C pDüse 5.6 inWG

ErP-Data:

ErP 2026 (EU) 2024/1834 (Lot11) qV 4786.90756 cfm pfs 4.92 inWG ηfs 66.5 % Ped 4.37 kW n 1920 r/min N 70 N v 25.9 ft/s

Nominal Data:

U [V] f [Hz] Ped [kW] IN [A] nN [r/min]Data @ [V] tR [°C] k10 [m²s/h] Eff.-Rating IP m [kg]

124603~380-480 50/60 9

-25 .. +40 396 IE5 IP 54 104

Sound Data:

Frequency Σ 125Hz 250Hz 500Hz 1kHz 2kHz 4kHz 8kHz63Hz Distances 1 m 4 m

LwA(A,in) [dB(A)] 85 68 77 80 78 77 75 6950 LpA(A,in) [dB(A)] 78 68 LwA(A,out) [dB(A)] 92 81 84 85 88 83 77 7259 LpA(A,out) [dB(A)] 85 75

Drawing:Wiring Diagram:

Attention: Start-up times up to ~ 20 - 60 sec. depending on motor-impeller combination, motor load and number of operation.

Please note during project planning (e.g. for condenser units in refrigeration circuits)!

Ver.: 10.12.24/1.0.10.68

D9AC 06/10/2026

Rosenberg Ventilatoren GmbH • Maybachstraße 1 • D - 74653 Künzelsau - Gaisbach Tel: +49(0)7940/142-0 • Email: info@rosenberg-gmbh.com • www.rosenberg-gmbh.com

Page 1 from 1

VOLTAGE LOCATION DATE

460-3-60 OUTDOOR 12-06-26

QTY AMPACITY

15 HP 1 18.10 A

4.5 kW 2 6.0 A

kW kW

170 W 1 .51 A

60.0 W 1 .13 A

620 VA 1 1.35 A

150 W 1 .33 A

350 VA 1 .76 A

TOTAL

30.61 A

33.17 A

37.70 A

70 A

50 A

70 A

NOTES:

1) Feeder cable sizing excludes the cable derates. Final cable size shall be derated for cable routing, voltage drop, and type of protection upon unit installation.

2) When Heater and AC loads are not used simultaneously, protection and feeder size shall be based on the highest load as per C22.1-24

COMPRESSOR MOTOR 1

COMPRESSOR MOTOR 2

CONDENSER FAN

INDUCER FAN

PANEL HEATER

VFD HEATER

ROSENBERG

MISC LOADS

TOTAL COOLING AMPS

RTU-5

ELECTRIC HEATER

HEAT WHEEL MOTOR

SUPPLY FAN MOTOR

DESCRIPTION

HUMIDIFIER

POWER VENT

1 x 3C #8 AWG

UNIT AMPS

MOTOR AMPS

ELECTRICAL LOADS

UNIT MODEL

HTDM-600-82-DX-MZ4

PROJECT NO

460V-3P POWER

UNIT TAG

C26-093A

RETURN FAN MOTOR

TRANSFORMER

FEEDER CABLE

FEEDER AMP (MCA)

CB (MOP)

TD FUSE

NON-TD FUSE

DC POWER

VFD

ECY-300

COMBUSTION FAN MOTOR

120V POWER

24V POWER

Programmed with Temperature in °F

Sequence of Operation Job: C26-093A

Tag: RTU-5

REV.0

RTU-5 provides heating, cooling and ventilation to the building. Unit is equipped with

Hand/Off/Auto switch. In HAND position, unit can be started without either the EC-Smart Vue remote selector, dry contact “Unit start” or the Building Automation System (BAS) if unit is connected to BACnet/IP network.

RTU-5 will maintain the supply air temperature at the setpoint provided through the Allure EC-

Smart Vue remote selector. Setpoint can be overridden through BAS if required.

Note : OVERIDE bit (address : BV3) must be TRUE to change the setpoint from BAS

Unit is equipped with the following components:

1. Hot deck discharge, cold deck discharge, mixed and outside air temperature sensors

2. Supply fan w/ VFDs (air balancing purpose)

3. Return fans

4. Inlet, exhaust and return air dampers w/ modulating actuators

5. Burner heating

6. DX cooling coil w/ pressure switch

7. Zone dampers w/ modulating actuators (controlled by others)

8. Filter pressure switch

9. Phase monitor

The HVAC unit is controlled by a BACnet/IP Distech controller ECY-300 c/w EC-Smart Vue remote selector.

DEFAULT SETPOINTS (ADJUSTABLE AT SMART SENSOR/BAS)

HEAT ENABLE O/A TEMP. 55°F

ECONOMIZER ENABLE O/A TEMP. 60°F

COOL ENABLE M/A TEMP. 72°F

HOT DECK DISCHARGE AIR TEMP. 72°F

MIXED AIR TEMP. 70°F

MINIMUM O/A OPEN 20%

Normal Operation:

When Hand/Off/Auto switch is in the AUTO position, the unit can be enabled by either one of the following start commands:

• Through Allure EC-Smart Vue sensor

• Through start command from the BAS via BACnet/IP

• Through hardwired unit start contact

Once the unit receives the start command, the unit controller start and modulate the inlet, exhaust, return and multi zone air dampers. The supply/return fans will start and run continuously.

Hot Deck Operation:

If the outside air temperature falls below the heat enable O/A temperature setpoint (adjustable), the unit controller will enable the heating mode. After the sixty five seconds purge time, the burner fires. The unit controller modulates burner to maintain the hot deck discharge air temperature setpoint (adjustable). The burner will try for ignition up to four times on initial start-

up. If main flame is not proven there is a 70 seconds purge cycle before the next 15 seconds trial for re-ignition. After the 4th attempt, if the flames are not proven, the burner will shut down. The burner control signal from the Distech controller (0-10VDC) is sent to the burner controller, from which it is forwarded to the modulating gas valve. A PID loop in the Distech controller determines the modulating gas valve firing rate. A default 5VDC signal from the burner controller causes the gas valve to open half way until the control signal from the Distech controller changes it according to heating demand. The inlet air damper open 20% (adjustable) during heating. If the outside air temperature rises above the heat enable O/A temperature setpoint (adjustable) + 5°F, the unit controller will disable the heating mode.

Cold Deck Operation:

If the mixed air temperature rises above the cool enable M/A temperature setpoint

(adjustable), the unit controller will enable the cooling mode. The unit controller will send the cooling enable command to others. The inlet air damper open 20% (adjustable) during cooling. If the mixed air temperature falls below the cool enable M/A temperature setpoint

(adjustable) - 5°F, the unit controller will disable the cooling mode and will not send the cooling enable command to others.

Economizer Operation:

If the heating/cooling mode is disabled and the outside air temperature is less than the economizer enable O/A temperature setpoint (adjustable), the unit controller will modulate the inlet, exhaust and return air dampers to maintain the mixed air temperature setpoint (adjustable).

If heating or cooling mode is enabled, the inlet air damper will open as the minimum O/A open setting (adjustable).

Multi-zone Damper Operation:

The zone dampers will be modulated by 2-10VDC control signal (by others).

Alarms:

Note: Reset is required to restart the unit

Alarm

Description

Action

To BAS via

BACNET

Supply Fan Failure Alarm

Supply fan not proven after 3 minutes

Close inlet/exhaust air damper, shut down the unit and generate alarm (See note)

Yes

Low Cold/Hot Deck Disch. Air Temp Alarm

Cold/hot deck disch.

air temp < 40°F for more than 10 minutes

Close inlet/exhaust air damper, shut down the unit and generate alarm (See note)

Yes

High Cold/Hot Deck Disch. Air Temp Alarm

Cold/hot deck disch.

air temp > 50°C

Disable burner, keeps fan running and generate alarm Yes

Burner Alarm Burner fails to ignite Disable burner and generate alarm Yes

Filter Change Alarm

Filter pressure drop > 0.8”WC Generate alarm Yes

Emergency Action:

When emergency shutdown (by others) contact is de-activated (by others) or phase monitor detects the phase alarm, the supply/return fans will stop and the unit will shut down.

Normal Shutdown:

If the unit is operating in economizer mode, the supply/return fans will be disabled and the inlet/exhaust air dampers will be closed.

If the unit is operating in cooling mode, the unit controller will de-energize the cooling enable command relay.

If the unit is operating in heating mode, the unit controller will disable the burner and the supply/return fans will continue to run until the supply air temperature is below the cool down setpoint adjustable at smart sensor (to cool the heat exchanger).

When the unit is shutdown,

1. Supply fan is off

2. Return fans are off

3. Inlet air damper is 100% closed

4. Return air damper is 100% open

5. Exhaust air damper is 100% closed

6. Burner is off

7. Cooling enable command relay is deenergized

8. All multi zone damper actuators are disabled

1 1

3 32 2 2

2 22 9 9

9 9 5 5

AutoCAD SHX Text

MAIN DISCONNECT SW

AutoCAD SHX Text

60A, NEMA 3R

AutoCAD SHX Text 460V/3%%C/60Hz

AutoCAD SHX Text

POWER SUPPLY

AutoCAD SHX Text

BY OTHERS

AutoCAD SHX Text 35A

AutoCAD SHX Text 460V

AutoCAD SHX Text

FU1

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%%UGROUND SYMBOLS

AutoCAD SHX Text

GROUND

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ISOLATOR

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SIGNAL

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EARTH

AutoCAD SHX Text

GROUND

AutoCAD SHX Text

SFM

AutoCAD SHX Text

SUPPLY FAN MOTOR 460V, 15HP, 18.1FLA

AutoCAD SHX Text L1/L

AutoCAD SHX Text U/T1

AutoCAD SHX Text L2

AutoCAD SHX Text V/T2

AutoCAD SHX Text L3/N

AutoCAD SHX Text W/T3

AutoCAD SHX Text

SUPPLY FAN MOTOR VFD (DANFOSS)

AutoCAD SHX Text

COM 1

AutoCAD SHX Text

NO 2

AutoCAD SHX Text

RUN

AutoCAD SHX Text R1-1

AutoCAD SHX Text

START

AutoCAD SHX Text

12 +24VDC

AutoCAD SHX Text

18 DI1

AutoCAD SHX Text D9

AutoCAD SHX Text

AutoCAD SHX Text L1

AutoCAD SHX Text L3

AutoCAD SHX Text

RFM 1

AutoCAD SHX Text

EC-RETURN AIR FAN MOTOR #1

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MAINS

AutoCAD SHX Text L2

AutoCAD SHX Text R1-2

AutoCAD SHX Text 4.5kW

AutoCAD SHX Text

6FLA

AutoCAD SHX Text 460V

AutoCAD SHX Text

SFM VFD

AutoCAD SHX Text

SUPPLY FAN RUN STATUS

AutoCAD SHX Text L1

AutoCAD SHX Text L3

AutoCAD SHX Text

EC-RETURN AIR FAN MOTOR #2

AutoCAD SHX Text

MAINS

AutoCAD SHX Text L2

AutoCAD SHX Text R1-3

AutoCAD SHX Text 460V

AutoCAD SHX Text

FU3

AutoCAD SHX Text 12A

AutoCAD SHX Text

RFM 2

AutoCAD SHX Text 460V

AutoCAD SHX Text 4.5kW

AutoCAD SHX Text

6FLA

AutoCAD SHX Text 12A

AutoCAD SHX Text

FU2

AutoCAD SHX Text

AutoCAD SHX Text 4 +24V

AutoCAD SHX Text

5 DIN

AutoCAD SHX Text

ENABLE

AutoCAD SHX Text 4 +24V

AutoCAD SHX Text

5 DIN

AutoCAD SHX Text

ENABLE

AutoCAD SHX Text 0-10V 7

AutoCAD SHX Text

GND 8

AutoCAD SHX Text

ANA IN

AutoCAD SHX Text D16

AutoCAD SHX Text D15

AutoCAD SHX Text 0-10V 7

AutoCAD SHX Text

GND 8

AutoCAD SHX Text

ANA IN

AutoCAD SHX Text

EC-RETURN FAN #1/#2 CONTROL SIGNAL 0-10VDC

AutoCAD SHX Text

UO8

AutoCAD SHX Text

COM

AutoCAD SHX Text 120V

AutoCAD SHX Text

LINE

AutoCAD SHX Text

TR1

AutoCAD SHX Text 1kVA

AutoCAD SHX Text

FU4

AutoCAD SHX Text 3A

AutoCAD SHX Text

LINE

AutoCAD SHX Text

TR2

AutoCAD SHX Text

350VA

AutoCAD SHX Text

FU5

AutoCAD SHX Text 1A

AutoCAD SHX Text 24V

AutoCAD SHX Text

UI4

AutoCAD SHX Text

PHASE MONITOR

AutoCAD SHX Text L1

AutoCAD SHX Text L2

AutoCAD SHX Text L3

AutoCAD SHX Text N.O

AutoCAD SHX Text B2

AutoCAD SHX Text B3

AutoCAD SHX Text

REVISION DESCRIPTION

AutoCAD SHX Text

DATE

AutoCAD SHX Text

REV

AutoCAD SHX Text

DRAWN BY

AutoCAD SHX Text

ISSUED BY

AutoCAD SHX Text

SCALE

AutoCAD SHX Text

DRW. NO.

AutoCAD SHX Text

JOB NO.

AutoCAD SHX Text

DATE

AutoCAD SHX Text

CHK. BY

AutoCAD SHX Text

REV

AutoCAD SHX Text

WILKINSON ELEMENTARY SCHOOL

AutoCAD SHX Text

11-JUN-2026

AutoCAD SHX Text

NTS

AutoCAD SHX Text

EL-C26-093A-WRD-1

AutoCAD SHX Text

C26-093A-WRD

AutoCAD SHX Text

11-JUN-2026

AutoCAD SHX Text

ISSUED FOR APPROVAL

AutoCAD SHX Text

RTU-5 (HTDM-600-82-DX-MZ4)

AutoCAD SHX Text 9765 54 Street SE, Calgary AB T2C 5J6 Ph 403-252-5577

4 4

AutoCAD SHX Text

DC POWER SUPPLY 24VDC, 2.5A

AutoCAD SHX Text

FU8

AutoCAD SHX Text 2A

AutoCAD SHX Text D1

AutoCAD SHX Text

CN10 +24VDC

AutoCAD SHX Text

CN10 -24VDC

AutoCAD SHX Text

CN5 GND

AutoCAD SHX Text

CN3 COM-DI

AutoCAD SHX Text

CN11 GND

AutoCAD SHX Text

CBM GND

AutoCAD SHX Text

DI1 (CN3)

AutoCAD SHX Text

DI 01

AutoCAD SHX Text

SLOT 10

AutoCAD SHX Text

UNIT START R9-1

AutoCAD SHX Text

EMERGENCY

AutoCAD SHX Text

SHUT DOWN

AutoCAD SHX Text

ESD-1

AutoCAD SHX Text (10A)

AutoCAD SHX Text A2

AutoCAD SHX Text

DO 03

AutoCAD SHX Text

C4 (CN15)

AutoCAD SHX Text

DO 04

AutoCAD SHX Text

DO 01

AutoCAD SHX Text

DO1 (CN9)

AutoCAD SHX Text

DO 02

AutoCAD SHX Text

C3 (CN6)

AutoCAD SHX Text

COMBUSTION FAN ENABLE

AutoCAD SHX Text R2

AutoCAD SHX Text

DAMPER ENABLE

AutoCAD SHX Text R5

AutoCAD SHX Text R6

AutoCAD SHX Text

MAIN GAS VALVE OPEN

AutoCAD SHX Text R7

AutoCAD SHX Text

C12 (CN9)

AutoCAD SHX Text

SLOT 10

AutoCAD SHX Text

SLOT 10

AutoCAD SHX Text

DO2 (CN9)

AutoCAD SHX Text

DO3 (CN6)

AutoCAD SHX Text

DO4 (CN15)

AutoCAD SHX Text

SLOT 10

AutoCAD SHX Text

SLOT 10

AutoCAD SHX Text

DO 05

AutoCAD SHX Text

C5 (CN15)

AutoCAD SHX Text

BURNER ALARM

AutoCAD SHX Text

DO5 (CN15)

AutoCAD SHX Text

SLOT 10

AutoCAD SHX Text R10

AutoCAD SHX Text

AutoCAD SHX Text A2

AutoCAD SHX Text

120VAC

AutoCAD SHX Text

COMBUSTION FAN ENABLE R2-1

AutoCAD SHX Text

IGNITION CTRL ENABLE

AutoCAD SHX Text L1

AutoCAD SHX Text N

AutoCAD SHX Text

AutoCAD SHX Text A1

AutoCAD SHX Text E1

AutoCAD SHX Text

GND

AutoCAD SHX Text

DI2 (CN3)

AutoCAD SHX Text 5kΩ

AutoCAD SHX Text

AO2 (CN11)

AutoCAD SHX Text

COMBUSTION BLOWER MOTOR 120V, 170W, 3.4A

AutoCAD SHX Text

GNYE

AutoCAD SHX Text

AutoCAD SHX Text D3

AutoCAD SHX Text D2

AutoCAD SHX Text

AO 02

AutoCAD SHX Text

SLOT 10

AutoCAD SHX Text

24VDC (CN5)

AutoCAD SHX Text

DI 02

AutoCAD SHX Text

SLOT 10

AutoCAD SHX Text A1

AutoCAD SHX Text

CB1

AutoCAD SHX Text 10A

AutoCAD SHX Text

120VAC

AutoCAD SHX Text

FU6

AutoCAD SHX Text 1A

AutoCAD SHX Text

VESTIBULE FAN 20W

AutoCAD SHX Text F

AutoCAD SHX Text

FU7

AutoCAD SHX Text 2A

AutoCAD SHX Text

PANEL HEATER 150W

AutoCAD SHX Text

REVISION DESCRIPTION

AutoCAD SHX Text

DATE

AutoCAD SHX Text

REV

AutoCAD SHX Text

DRAWN BY

AutoCAD SHX Text

ISSUED BY

AutoCAD SHX Text

SCALE

AutoCAD SHX Text

DRW. NO.

AutoCAD SHX Text

JOB NO.

AutoCAD SHX Text

DATE

AutoCAD SHX Text

CHK. BY

AutoCAD SHX Text

REV

AutoCAD SHX Text 9765 54 Street SE, Calgary AB T2C 5J6 Ph 403-252-5577

AutoCAD SHX Text

WILKINSON ELEMENTARY SCHOOL

AutoCAD SHX Text

11-JUN-2026

AutoCAD SHX Text

NTS

AutoCAD SHX Text

EL-C26-093A-WRD-2

AutoCAD SHX Text

C26-093A-WRD

AutoCAD SHX Text

11-JUN-2026

AutoCAD SHX Text

ISSUED FOR APPROVAL

AutoCAD SHX Text

RTU-5 (HTDM-600-82-DX-MZ4)

5 5 6 6

ECY-300 CONTROLLER

AutoCAD SHX Text

24VAC

AutoCAD SHX Text

SYSTEM

AutoCAD SHX Text

ON/OFF

AutoCAD SHX Text

FU9

AutoCAD SHX Text 15A

AutoCAD SHX Text

24VAC

AutoCAD SHX Text

%%UGROUND SYMBOLS

AutoCAD SHX Text

GROUND

AutoCAD SHX Text

ISOLATOR

AutoCAD SHX Text

SIGNAL

AutoCAD SHX Text

EARTH

AutoCAD SHX Text

GROUND

AutoCAD SHX Text

COM(1)

AutoCAD SHX Text

24VAC(2)

AutoCAD SHX Text

2-10VDC(3)

AutoCAD SHX Text

ZONE #1 DAMPER CONTROL SIGNAL 2-10VDC (BY OTHERS)

AutoCAD SHX Text

TEMPERED AIR ZONE #1 DAMPER MOTOR 22 IN-LB

AutoCAD SHX Text

COM(1)

AutoCAD SHX Text

24VAC(2)

AutoCAD SHX Text

2-10VDC(3)

AutoCAD SHX Text

ZONE #2 DAMPER CONTROL SIGNAL 2-10VDC (BY OTHERS)

AutoCAD SHX Text

COM(1)

AutoCAD SHX Text

24VAC(2)

AutoCAD SHX Text

2-10VDC(3)

AutoCAD SHX Text

ZONE #3 DAMPER CONTROL SIGNAL 2-10VDC (BY OTHERS)

AutoCAD SHX Text

COM(1)

AutoCAD SHX Text

24VAC(2)

AutoCAD SHX Text

2-10VDC(3)

AutoCAD SHX Text

ZONE #4 DAMPER CONTROL SIGNAL 2-10VDC (BY OTHERS)

AutoCAD SHX Text B6

AutoCAD SHX Text

AutoCAD SHX Text S2

AutoCAD SHX Text S1

AutoCAD SHX Text S4

AutoCAD SHX Text S3

AutoCAD SHX Text S6

AutoCAD SHX Text S5

AutoCAD SHX Text S8

AutoCAD SHX Text S7

AutoCAD SHX Text

TEMPERED AIR ZONE #2 DAMPER MOTOR 35 IN-LB

AutoCAD SHX Text

TEMPERED AIR ZONE #3 DAMPER MOTOR 90 IN-LB

AutoCAD SHX Text

TEMPERED AIR ZONE #4 DAMPER MOTOR 90 IN-LB

AutoCAD SHX Text R5-1

AutoCAD SHX Text

DAMPER ENABLE

AutoCAD SHX Text B6

AutoCAD SHX Text

ESD

AutoCAD SHX Text

EMERGENCY SHUTDOWN (BY OTHERS)

AutoCAD SHX Text B2

AutoCAD SHX Text B1

AutoCAD SHX Text

EMERGENCY SHUTDOWN ESD-2 (15A)

AutoCAD SHX Text

EMERGENCY SHUTDOWN

AutoCAD SHX Text

(BY OTHERS)

AutoCAD SHX Text

UNIT START CONTACT

AutoCAD SHX Text

UNIT START

AutoCAD SHX Text R11

AutoCAD SHX Text B4

AutoCAD SHX Text B5

AutoCAD SHX Text

24V COM

AutoCAD SHX Text

24VAC/DC

AutoCAD SHX Text B4

AutoCAD SHX Text

SUPPLY/RETURN FAN START

AutoCAD SHX Text R1

AutoCAD SHX Text

COM(1)

AutoCAD SHX Text

24VAC(2)

AutoCAD SHX Text

180 IN-LB

AutoCAD SHX Text

24VAC(2)

AutoCAD SHX Text

180 IN-LB

AutoCAD SHX Text

COM(1)

AutoCAD SHX Text

2-10VDC(3)

AutoCAD SHX Text

2-10VDC(3)

AutoCAD SHX Text D14

AutoCAD SHX Text

INLET AIR DAMPER MOTOR (N.C)

AutoCAD SHX Text

RETURN AIR DAMPER MOTOR (N.O)

AutoCAD SHX Text

MIXED AIR DAMPER CONTROL SIGNAL, 2-10VDC

AutoCAD SHX Text

UO7

AutoCAD SHX Text

COM

AutoCAD SHX Text

24VAC(2)

AutoCAD SHX Text

90 IN-LB

AutoCAD SHX Text

COM(1)

AutoCAD SHX Text

2-10VDC(3)

AutoCAD SHX Text

EXHAUST AIR DAMPER MOTOR (N.C)

AutoCAD SHX Text B6

AutoCAD SHX Text

PHASE MONITOR

AutoCAD SHX Text B3

AutoCAD SHX Text

SPARK IGNITER

AutoCAD SHX Text

FLAME DETECT

AutoCAD SHX Text R4

AutoCAD SHX Text

GND

AutoCAD SHX Text

TH/W

AutoCAD SHX Text

IGNITION CONTROLLER (FENWAL)

AutoCAD SHX Text

PV1

AutoCAD SHX Text V2

AutoCAD SHX Text

MV1

AutoCAD SHX Text H.V.

AutoCAD SHX Text S1

AutoCAD SHX Text

MAIN GAS VALVE OPEN R7-1

AutoCAD SHX Text B10

AutoCAD SHX Text

MGV (N.C)

AutoCAD SHX Text

PGV (N.C)

AutoCAD SHX Text C

AutoCAD SHX Text

AutoCAD SHX Text C

AutoCAD SHX Text

IGNITION CONTROLLER ENABLE R6-1

AutoCAD SHX Text

BLOCKED FLU AIR SWITCH

AutoCAD SHX Text

CLOSED < 60°C (140°F)OPEN > 75°C (167°F)HI LIMIT SWITCH

AutoCAD SHX Text

FLAME ROD

AutoCAD SHX Text

NOTE: RUN GROUND WIRE TO BURNER

AutoCAD SHX Text B7

AutoCAD SHX Text

MAIN GAS VALVE OPEN R22-1

AutoCAD SHX Text

AUX GAS VALVE (NC)

AutoCAD SHX Text R22

AutoCAD SHX Text B8

AutoCAD SHX Text B9

AutoCAD SHX Text

REVISION DESCRIPTION

AutoCAD SHX Text

DATE

AutoCAD SHX Text

REV

AutoCAD SHX Text

DRAWN BY

AutoCAD SHX Text

ISSUED BY

AutoCAD SHX Text

SCALE

AutoCAD SHX Text

DRW. NO.

AutoCAD SHX Text

JOB NO.

AutoCAD SHX Text

DATE

AutoCAD SHX Text

CHK. BY

AutoCAD SHX Text

REV

AutoCAD SHX Text 9765 54 Street SE, Calgary AB T2C 5J6 Ph 403-252-5577

AutoCAD SHX Text

WILKINSON ELEMENTARY SCHOOL

AutoCAD SHX Text

11-JUN-2026

AutoCAD SHX Text

NTS

AutoCAD SHX Text

EL-C26-093A-WRD-3

AutoCAD SHX Text

C26-093A-WRD

AutoCAD SHX Text

11-JUN-2026

AutoCAD SHX Text

ISSUED FOR APPROVAL

AutoCAD SHX Text

8 8

%%UGROUND SYMBOLS

AutoCAD SHX Text

GROUND

AutoCAD SHX Text

ISOLATOR

AutoCAD SHX Text

SIGNAL

AutoCAD SHX Text

EARTH

AutoCAD SHX Text

GROUND

AutoCAD SHX Text

24VAC

AutoCAD SHX Text D5

AutoCAD SHX Text

CONTROL SIGNAL 2-10VDC

AutoCAD SHX Text

AI 01

AutoCAD SHX Text

FEEDBACK SIGNAL 1-5VDC

AutoCAD SHX Text

MODULATING GAS VALVE

AutoCAD SHX Text

AO 01

AutoCAD SHX Text

(CN13)

AutoCAD SHX Text

AI6

AutoCAD SHX Text

(CN11)

AutoCAD SHX Text

AO1

AutoCAD SHX Text

SLOT 10

AutoCAD SHX Text

SLOT 10

AutoCAD SHX Text

CN13 GND

AutoCAD SHX Text

10KΩ

AutoCAD SHX Text D4

AutoCAD SHX Text

FILTER CLOGGED ALARM

AutoCAD SHX Text R16

AutoCAD SHX Text

FILTER PRESSURE SWITCH

AutoCAD SHX Text C

AutoCAD SHX Text

AutoCAD SHX Text D6

AutoCAD SHX Text R20-1

AutoCAD SHX Text

DX COIL PRESSURE SWITCH

AutoCAD SHX Text

AutoCAD SHX Text C

AutoCAD SHX Text

COOLING ENABLE COMMAND (TO OTHERS)

AutoCAD SHX Text B11

AutoCAD SHX Text B12

AutoCAD SHX Text

REVISION DESCRIPTION

AutoCAD SHX Text

DATE

AutoCAD SHX Text

REV

AutoCAD SHX Text

DRAWN BY

AutoCAD SHX Text

ISSUED BY

AutoCAD SHX Text

SCALE

AutoCAD SHX Text

DRW. NO.

AutoCAD SHX Text

JOB NO.

AutoCAD SHX Text

DATE

AutoCAD SHX Text

CHK. BY

AutoCAD SHX Text

REV

AutoCAD SHX Text 9765 54 Street SE, Calgary AB T2C 5J6 Ph 403-252-5577

AutoCAD SHX Text

WILKINSON ELEMENTARY SCHOOL

AutoCAD SHX Text

11-JUN-2026

AutoCAD SHX Text

NTS

AutoCAD SHX Text

EL-C26-093A-WRD-4

AutoCAD SHX Text

C26-093A-WRD

AutoCAD SHX Text

11-JUN-2026

AutoCAD SHX Text

ISSUED FOR APPROVAL

AutoCAD SHX Text

DISTECH ECY-300

CONTROLLER

NOTE:

- LOCATED AT THE SPACE

- START SWITCH AT AUTO

- FAN ON INDICATION

- HEAT ON INDICATION

- SETPOINT ADJUSTMENT

- HEAT ENABLE M/A TEMP.

- ECONOMIZER ENABLE O/A TEMP.

- COOL ENABLE M/A TEMP.

- HOT DECK DISCHARGE AIR TEMP.

- MIXED TEMP.

- MINIMUM O/A OPEN

- ALARM

- SUPPLY FAN FAILURE ALARM

- LOW COLD/HOT DECK DISCH. AIR TEMP. ALARM

- HIGH COLD/HOT DECK DISCH. AIR TEMP. ALARM

- BURNER ALARM

- FILTER CHANGE ALARM

AutoCAD SHX Text O1

AutoCAD SHX Text O2

AutoCAD SHX Text O3

AutoCAD SHX Text O4

AutoCAD SHX Text O5

AutoCAD SHX Text O6

AutoCAD SHX Text O7

AutoCAD SHX Text O8

AutoCAD SHX Text

STATUS

AutoCAD SHX Text

POWER

AutoCAD SHX Text

PRI

AutoCAD SHX Text

SEC

AutoCAD SHX Text

AUX

AutoCAD SHX Text

PWR

AutoCAD SHX Text

ETHERNET

AutoCAD SHX Text

SUBNET-IP

AutoCAD SHX Text

RS-485

AutoCAD SHX Text

18VDC

AutoCAD SHX Text

UI1

AutoCAD SHX Text

COM

AutoCAD SHX Text

UI2

AutoCAD SHX Text

UI3

AutoCAD SHX Text

COM

AutoCAD SHX Text

UI4

AutoCAD SHX Text

UI5

AutoCAD SHX Text

COM

AutoCAD SHX Text

UI6

AutoCAD SHX Text

AutoCAD SHX Text S

AutoCAD SHX Text

RS-485

AutoCAD SHX Text

PRI

AutoCAD SHX Text

SEC

AutoCAD SHX Text

ETHERNET SWITCH

AutoCAD SHX Text 10/100

AutoCAD SHX Text

SUBNET-IP

AutoCAD SHX Text

CLOCK

AutoCAD SHX Text

RESET

AutoCAD SHX Text

DUO1

AutoCAD SHX Text C1

AutoCAD SHX Text

DUO2

AutoCAD SHX Text C2

AutoCAD SHX Text

DUO3

AutoCAD SHX Text C3

AutoCAD SHX Text

DUO4

AutoCAD SHX Text C4

AutoCAD SHX Text

DUO5

AutoCAD SHX Text C5

AutoCAD SHX Text

DUO6

AutoCAD SHX Text C6

AutoCAD SHX Text

UO7

AutoCAD SHX Text

COM

AutoCAD SHX Text

UO8

AutoCAD SHX Text

COM

AutoCAD SHX Text

24VAC/DC

AutoCAD SHX Text

24V COM

AutoCAD SHX Text

HOST

AutoCAD SHX Text

HOST

AutoCAD SHX Text

SUBNET

AutoCAD SHX Text

24V POWER SUPPLY

AutoCAD SHX Text B4

AutoCAD SHX Text

SUBNET

AutoCAD SHX Text

HOST

AutoCAD SHX Text

HOST

AutoCAD SHX Text

RESET

AutoCAD SHX Text

CLOCK

AutoCAD SHX Text

SUBNET-IP

AutoCAD SHX Text

PRI

AutoCAD SHX Text

SEC

AutoCAD SHX Text

ETHERNET SWITCH

AutoCAD SHX Text 10/100

AutoCAD SHX Text

UI7

AutoCAD SHX Text

COM

AutoCAD SHX Text

UI8

AutoCAD SHX Text

UI9

AutoCAD SHX Text

COM

AutoCAD SHX Text

UI10

AutoCAD SHX Text

%%UGROUND SYMBOLS

AutoCAD SHX Text

GROUND

AutoCAD SHX Text

ISOLATOR

AutoCAD SHX Text

SIGNAL

AutoCAD SHX Text

EARTH

AutoCAD SHX Text

GROUND

AutoCAD SHX Text

RJ-45

AutoCAD SHX Text

BACNET/IP TO BAS

AutoCAD SHX Text

ROOM TEMP

AutoCAD SHX Text

68.0%%DF

AutoCAD SHX Text

DISTECH ALLURE EC-SMART-VUE

AutoCAD SHX Text

SET EOL TO ON

AutoCAD SHX Text

RJ-45

AutoCAD SHX Text

REVISION DESCRIPTION

AutoCAD SHX Text

DATE

AutoCAD SHX Text

REV

AutoCAD SHX Text

DRAWN BY

AutoCAD SHX Text

ISSUED BY

AutoCAD SHX Text

SCALE

AutoCAD SHX Text

DRW. NO.

AutoCAD SHX Text

JOB NO.

AutoCAD SHX Text

DATE

AutoCAD SHX Text

CHK. BY

AutoCAD SHX Text

REV

AutoCAD SHX Text 9765 54 Street SE, Calgary AB T2C 5J6 Ph 403-252-5577

AutoCAD SHX Text

WILKINSON ELEMENTARY SCHOOL

AutoCAD SHX Text

11-JUN-2026

AutoCAD SHX Text

NTS

AutoCAD SHX Text

EL-C26-093A-WRD-5

AutoCAD SHX Text

C26-093A-WRD

AutoCAD SHX Text

11-JUN-2026

AutoCAD SHX Text

ISSUED FOR APPROVAL

AutoCAD SHX Text

INPUT OUTPUT

18VDC

AutoCAD SHX Text

UI1

AutoCAD SHX Text

COM

AutoCAD SHX Text

UI2

AutoCAD SHX Text

UI3

AutoCAD SHX Text

COM

AutoCAD SHX Text

UI4

AutoCAD SHX Text

UI5

AutoCAD SHX Text

COM

AutoCAD SHX Text

UI6

AutoCAD SHX Text

UI7

AutoCAD SHX Text

COM

AutoCAD SHX Text

UI8

AutoCAD SHX Text

HAND

AutoCAD SHX Text

AUTO

AutoCAD SHX Text

HAND/OFF/AUTO

AutoCAD SHX Text R11-1

AutoCAD SHX Text

OFF

AutoCAD SHX Text

UNIT ENABLE

AutoCAD SHX Text

10KΩ

AutoCAD SHX Text

OUTSIDE AIR TEMP SENSOR

AutoCAD SHX Text

10KΩ

AutoCAD SHX Text

HOT DECK DISCHARGE AIR TEMP SENSOR (AVERAGE)

AutoCAD SHX Text

SUPPLY/EC-RETURN FAN RUN STATUS

AutoCAD SHX Text

BURNER ALARM

AutoCAD SHX Text D9

AutoCAD SHX Text R10-1

AutoCAD SHX Text

DUO1

AutoCAD SHX Text C1

AutoCAD SHX Text

DUO2

AutoCAD SHX Text C2

AutoCAD SHX Text

DUO3

AutoCAD SHX Text C3

AutoCAD SHX Text

DUO4

AutoCAD SHX Text C4

AutoCAD SHX Text

DUO5

AutoCAD SHX Text C5

AutoCAD SHX Text

DUO6

AutoCAD SHX Text C6

AutoCAD SHX Text

UO7

AutoCAD SHX Text

COM

AutoCAD SHX Text

UO8

AutoCAD SHX Text D10

AutoCAD SHX Text D8

AutoCAD SHX Text D7

AutoCAD SHX Text

UI9

AutoCAD SHX Text

COM

AutoCAD SHX Text

UI10

AutoCAD SHX Text

UNIT START COMMAND ENABLE RELAY

AutoCAD SHX Text

12VDC

AutoCAD SHX Text R9

AutoCAD SHX Text

WINTER/HEAT MODE ENABLE RELAY

AutoCAD SHX Text

12VDC

AutoCAD SHX Text R3

AutoCAD SHX Text

AutoCAD SHX Text D13

AutoCAD SHX Text

%%UGROUND SYMBOLS

AutoCAD SHX Text

GROUND

AutoCAD SHX Text

ISOLATOR

AutoCAD SHX Text

SIGNAL

AutoCAD SHX Text

EARTH

AutoCAD SHX Text

GROUND

AutoCAD SHX Text

BURNER CONTROL SIGNAL 0-10VDC

AutoCAD SHX Text

(CN13)

AutoCAD SHX Text

GND

AutoCAD SHX Text

AI 02

AutoCAD SHX Text

SLOT 10

AutoCAD SHX Text

AI7

AutoCAD SHX Text D12

AutoCAD SHX Text

COM

AutoCAD SHX Text

MIXED AIR DAMPER CONTROL SIGNAL, 2-10VDC

AutoCAD SHX Text

SFM VFD

AutoCAD SHX Text 1 2

AutoCAD SHX Text

10KΩ

AutoCAD SHX Text

MIXED AIR TEMP SENSOR

AutoCAD SHX Text

COLD DECK DISCHARGE AIR TEMP SENSOR (AVERAGE)

AutoCAD SHX Text R16-1

AutoCAD SHX Text D11

AutoCAD SHX Text

EC-RETURN FAN MOTOR #1/#2 CONTROL SIGNAL 0-10VDC

AutoCAD SHX Text D14

AutoCAD SHX Text

AutoCAD SHX Text D15

AutoCAD SHX Text D16

AutoCAD SHX Text

FILTER CLOGGED ALARM

AutoCAD SHX Text

10KΩ

AutoCAD SHX Text

COOLING ENABLE RELAY

AutoCAD SHX Text

12VDC

AutoCAD SHX Text R20

AutoCAD SHX Text

REVISION DESCRIPTION

AutoCAD SHX Text

DATE

AutoCAD SHX Text

REV

AutoCAD SHX Text

DRAWN BY

AutoCAD SHX Text

ISSUED BY

AutoCAD SHX Text

SCALE

AutoCAD SHX Text

DRW. NO.

AutoCAD SHX Text

JOB NO.

AutoCAD SHX Text

DATE

AutoCAD SHX Text

CHK. BY

AutoCAD SHX Text

REV

AutoCAD SHX Text 9765 54 Street SE, Calgary AB T2C 5J6 Ph 403-252-5577

AutoCAD SHX Text

WILKINSON ELEMENTARY SCHOOL

AutoCAD SHX Text

11-JUN-2026

AutoCAD SHX Text

NTS

AutoCAD SHX Text

EL-C26-093A-WRD-6

AutoCAD SHX Text

C26-093A-WRD

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11-JUN-2026

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ISSUED FOR APPROVAL

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LCD LCD

BASE B.

SLOT 10

UPPER B.

SLOT 10

SCHNEIDER TM172PDG18R

CONTROLLER

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DO4

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AI4

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AI7

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AI8

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GND

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AO2

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AO1

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GND

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CN11

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CN13

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CN15

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+24VDC

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-24VDC

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DO3-

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COM-DI

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5VDC

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24VDC

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(MASTER)

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CN1

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RS485-2

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CAN L

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CAN H

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GND

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DAMPER ENABLE

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COMBUSTION FAN

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IGNITION CTRL ENABLE

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MAIN GAS VALVE OPEN

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ENABLE

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MODULATING GAS VALVE FEEDBACK SIGNAL, 1-5VDC

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MODULATING GAS VALVE CONTROL SIGNAL, 2-10VDC

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START COMMAND

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COMBUSTION BLOWER PROVING

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FLAME DETECT

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C NO

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CN19

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(SLAVE)

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RS485-1

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COMBUSTION FAN SPEED CONTROL SIGNAL, 0-10VDC

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COMBUSTION BLOWER RPM SENSOR

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GROUND

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ISOLATOR

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SIGNAL

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EARTH

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GROUND

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BURNER ALARM

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BURNER CONTROL SIGNAL 0-10VDC

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DUO6

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COM

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HEAT ENABLE

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(CN5)

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5VDC

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(CN13)

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AI8

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REVISION DESCRIPTION

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DATE

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DRAWN BY

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DRW. NO.

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JOB NO.

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DATE

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CHK. BY

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REV

AutoCAD SHX Text 9765 54 Street SE, Calgary AB T2C 5J6 Ph 403-252-5577

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WILKINSON ELEMENTARY SCHOOL

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11-JUN-2026

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NTS

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EL-C26-093A-WRD-7

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C26-093A-WRD

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11-JUN-2026

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ISSUED FOR APPROVAL

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24VAC

120VAC

24VDC

LEGEND

UNIT CONTROL PANEL

TERMINAL POINTS

FIELD WIRING

SIGNAL GROUND

120VAC CONVENIENCE

SIGNAL

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WIRE NUMBER FUNCTION

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POWER DISTRIBUTION WIRING

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120VAC WIRING

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24VAC WIRING

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24VDC WIRING

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PANEL TERMINAL BLOCK FUNCTION

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120 VAC WIRING

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24VAC WIRING

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24VDC WIRING

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CONTROL PANEL TERMINAL BLOCK

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SCHNEIDER PLC TERMINAL BLOCK

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DISTECH TERMINAL BLOCK

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FIELD WIRING

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FACTORY WIRING

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SCHNEIDER CONTROLLER I/O INDICATOR

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XX #

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NOTE: CONTROL WIRES SHALL BE MINIMUM #18 AWG.

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TIME DELAY / SLOW BLOWER FUSE

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RELAY

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SFM

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SUPPLY FAN MOTOR

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TRANSFORMER

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OVL

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OVERLOAD

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CBM

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COMBUSTION FAN MOTOR

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ESD

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EMERGENCY SHUTDOWN

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GROUND

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ISOLATOR

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SIGNAL

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EARTH

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GROUND

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EMERGENCY SHUTDOWN (BY OTHERS)

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UNIT START CONTACT (BY OTHERS)

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UNIT START CONTACT (BY OTHERS)

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AutoCAD SHX Text 120V/1 /60HzPOWER SUPPLY (BY OTHERS)

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MARINE #1

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LIGHT ON/OFF

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15A GFCI

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MARINE #2

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LL1

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FU10

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FU11

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MARINE #4

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LL1

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LL1

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LL1

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COOLING ENABLE COMMAND (TO OTHERS)

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ZONE #2 DAMPER CONTROL SIGNAL 2-10VDC (BY OTHERS)

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ZONE #1 DAMPER CONTROL SIGNAL 2-10VDC (BY OTHERS)

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ZONE #4 DAMPER CONTROL SIGNAL 2-10VDC (BY OTHERS)

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ZONE #3 DAMPER CONTROL SIGNAL 2-10VDC (BY OTHERS)

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REVISION DESCRIPTION

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DATE

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REV

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DRAWN BY

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ISSUED BY

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DRW. NO.

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JOB NO.

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DATE

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CHK. BY

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REV

AutoCAD SHX Text 9765 54 Street SE, Calgary AB T2C 5J6 Ph 403-252-5577

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WILKINSON ELEMENTARY SCHOOL

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11-JUN-2026

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NTS

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EL-C26-093A-WRD-8

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C26-093A-WRD

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11-JUN-2026

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ISSUED FOR APPROVAL

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HOLD FOR APPROVAL RELEASED TO PRODUCTION

0 ISSUED FOR REVIEW June 10, 2026 CL JC 1 UPDATED UNIT DESIGN TO FIT SITE LOCATION June 17, 2026 CL JC

JOB STATUS

UNIT(S) WILL NOT BE RELEASED FOR PRODUCTION UNTIL

APPROVED DRAWINGS ARE RETURNED. FACTORY IS

CURRENTLY SHIPPING 16-20 WEEKS FROM RETURN OF

APPROVED DRAWINGS.

SCHEDULED FOR SHIPMENT FROM CALGARY DURING THE

WEEK OF ______________

(PLEASE ADVISE SALES BRANCH IMMEDIATELY IF THERE

ARE ANY PROBLEMS WITH THIS DATE)

REVISION LOG

REV. ISSUE STATUS DATE ORIGINATOR APPROVED

PROJECT NAME:

WILKINSON ELEMENTARY SCHOOL

ICE WESTERN TAG(S):

RTU-7&12

PROJECT TAG(S):

RTU-7&12

ICE WESTERN MODEL:

HTDM-400-82

CONTRACTOR:

GRIFFIN INTERNATIONAL

CONSULTANT:

Date Created: June 10, 2026 Factory Job No: C26-93BC

PROJECT: WILKINSON ELEMENTARY SCHOOL

ICEW TAG: RTU-7&12

PROJECT TAG: RTU-7&12

ICEW MODEL: HTDM-400-82

CONTRACTOR: GRIFFIN INTERNATIONAL

CONSULTANT: --

EQUIPMENT DATASHEET

DESIGN CONDITIONS

LOCATION

ALTITUDE (ABOVE SEA LEVEL)

NUMBER OF UNITS

UNIT CONSTRUCTION

UNIT LOCATION & HANDING

ROOF GAUGE AND MATERIAL 18 GA. INDIRECT FIRED - GAS PERFORMANCE

WALL GAUGE AND MATERIAL 18 GA. EXCHANGER EFFICIENCY:

FLOOR GAUGE AND MATERIAL 16 GA. GAS TYPE & CONNECTION SIZE:

LINER GAUGE AND MATERIAL 20 GA. GAS INLET PRESSURE:

ROOF CURB GAUGE AND MATERIAL N/A TEMPERATURE RISE:

BASE FRAME - TYPE / SIZE MANIFOLD TYPE:

INSULATION THICKNESS / DENSITY / TYPE BURNER TYPE:

PAINT TYPE & COLOR BURNER CONTROL:

DOOR CONSTRUCTION DESIGN GAS INPUT:

ESTIMATED TOTAL UNIT WEIGHT DESIGN GAS OUTPUT:

SUPPLY FAN RETURN FAN

BLOWER MODEL NUMBER BLOWER MODEL NUMBER

MAXIMUM SUPPLY AIR VOLUME MAXIMUM RETURN AIR VOLUME

MINIMUM SUPPLY AIR VOLUME MINIMUM RETURN AIR VOLUME

EXTERNAL STATIC PRESSURE EXTERNAL STATIC PRESSURE

TOTAL STATIC PRESSURE TOTAL STATIC PRESSURE

FAN RPM FAN RPM

MOTOR TYPE MOTOR TYPE

HORSEPOWER HORSEPOWER

BRAKE HORSEPOWER BRAKE HORSEPOWER

VFD HP / TYPE VFD HP / TYPE

OUTDOOR AIR DAMPER RETURN AIR DAMPER

TYPE: TYPE:

CONSTRUCTION: CONSTRUCTION:

WIDTH: WIDTH:

HEIGHT: HEIGHT:

EXHAUST AIR DAMPER FILTER - 1

TYPE: TYPE:

CONSTRUCTION: MAKE & MODEL:

WIDTH: QUANTITY:

HEIGHT: SIZE:

POWER SECTION

POWER SUPPLY TOTAL MOTOR AMPS

TOTAL UNIT AMPS UNIT MCA (FEEDER AMPS)

MAXIMUM TIME DELAY FUSE MAXIMUM BREAKER SIZE

MINIMUM CONDUCTOR SIZE CONTROLS CONDUCTOR SIZE

460-3-60

GALVANNEAL - PAINTED

183m600'

N/A

1067 mm

0 CFM 0 L/S

METRIC

PARALLEL BLADE

TAMCO 1000 ALUMINUM AIRFOIL BLADE

IMPERIAL

0.00 HP

2" - MERV 8 - PLEATED THROWAWAY

0.00 HP

IMPERIAL METRIC

N/A

2.75 HP

5.36 HP

HORIZONTAL DOWN FLOW

RIGHT HAND UNITOUTDOOR

IMPERIAL

2" - 1.5 lb/ft³ - MAT FACED - GLASS MINERAL WOOL

METRIC

ELECTRONICALLY COMMUTATED (ECM)

3.12 in.wc

5.59 HP 4.17 kW

6.40 kW8.58 HP

1 3Cx#12

18.0 in.

777 Pa

IMPERIAL METRIC

16.9 AMPS

DETROIT, MI

1634 kg

GALVANNEAL - PAINTED

ENAMEL - I.C.E. WESTERN GREY

STANDARD HINGED DOOR - ALLEGIS HANDLE

3600 LBS

ROSENBERG - GHKM-560

7,500 CFM

1.70 in.wc

3,540 L/S

423 Pa

IMPERIAL METRIC

32°F 18°C

STANDARD - COMBINATION VALVE

MAXON - NP

7-14 W.C.

IMPERIAL

30 AMPS

18 AWG

FILTER SHOP - TP4000CP

1067 mm 42.0 in.

FENWAL - GAS IGNITION CONTROL

82%

0.50 in.wc 125 Pa

0 CFM 0 L/S

1759 RPM

N/A

ALUMINUM

C4x5.4

42.0 in.

TAMCO 1000 ALUMINUM AIRFOIL BLADE

610x508x50mm

PARALLEL BLADE

IMPERIAL

4.00 kW

1680 RPM

ELECTRONICALLY COMMUTATED (ECM)

24"x20"x2"

46.0 in. 1168 mm

457 mm457 mm

457 mm

IMPERIAL METRICMETRIC

18.0 in.

DATA

14.5 AMPS

19.0 AMPS

NATURAL GAS 3/4"

312 MBH

METRIC

ROSENBERG - GHKM-500

7,500 CFM

2.05 kW

0.90 in.wc

PARALLEL BLADE

TAMCO 1000 ALUMINUM AIRFOIL BLADE

18.0 in.

91.44 kW 256 MBH 74.98 kW

3,540 L/S

224 Pa

25 AMPS

ROOF CURB BY ICE WESTERN FITS ON EXISTING ROOF CURB

BASE FRAME W/ ANGLE

TAG: RTU-7/12

2- ICEW MODEL HTDM400 OUTDOOR HORIZONTAL DOWN DISCHARGE INDIRECT HEAT VENT UNIT

312 MBH INPUT 256 MBH OUTPUT (MINIMUM 82% EFFICIENCY)

S/A 7500 CFM @ 1.7” W.C. ESP 6.4KW PREMIUM HIGH EFF. ECM MOTOR 460/3/60

R/A 7500 CFM @ 0.5” W.C. ESP 5.36KW PREMIUM HIGH EFF. ECM MOTOR 460/3/60

7-14” W.C. NATURAL GAS MANIFOLD,

C/W STAINLESS STEEL DRUM AND TUBE HEAT EXCHANGER

POWER BURNER W/ 50:1 TURNDOWN

STAINLESS STEEL CHIMNEY

WEATHER HOUSING W/ HEATER AND VENT FAN AND DANFOSS FC101 VFD

STAINLESS STEEL CHIMNEY EXTENDED 3 FEET ABOVE VESTIBULE

STAINLESS STEEL GRAVITY FLUE BOX W/ DRAIN

INLET LOUVER W/ BIRD SCREEN

RELIEF HOOD W/ BIRD SCREEN

MIX BOX W/ RELIEF

TAMCO 1000 LOW LEAKAGE F/A DAMPER W/ MODULATING ACTUATOR

TAMCO 1000 R/A DAMPER W/ MODULATING ACTUATOR

TAMCO 1000 LOW LEAKAGE RELIEF DAMPER

MIX BOX CONTROLS/ENTHALPY

FILTER SECTION W/ 2” MERV 8 FILTERS

S/A BLOWER SECTION W/ DIRECT DRIVE AIRFOIL PLENUM FAN

R/A BLOWER SECTION W/ DIRECT DRIVE AIRFOIL PLENUM FAN

COOL BLUE/ALLEGIS RINGS

MODULATING GAS VALVE W/ DISCHARGE AIR SENSOR AND REMOTE TEMPERATURE SELECTOR

INLET AIR CONTROLLER

AUTO LOW LIMIT

NEMA 4 CONTROL PANEL

BACNET DDC CONTROLLER W/ SMART SPACE SENSOR (FILTER MONITOR)

R13 DOUBLE WALL HINGED ACCESS DOORS W/ ALLEGIS HANDLES AND TRIM SEAL GASKETS AND FULL-LENGTH STAINLESS-STEEL PIANO HINGES

STAINLESS STEEL GUTTERS

FULLY WELDED STRUCTURAL STEEL CHANNEL BASE FAME W/ R13 SPRAY FOAM INSULATION

18 GAUGE GALVANIZED EXTERIOR CASING

2” 1.5 LB DENSITY ROCK WOOL INSULATION

22 GAUGE GALVANIZED INTERNAL LINER

PAINTED…

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File details come from the government source that posted it. Updated Jun 29, 2026.