2027-433_Exhibit_F_Furnace_Product_Data_Sheet.pdf

PDF 530 KB Posted

Attached to
DNR RFB Mystery Cave Visitor Furnace Replacements
Solicitation number
2000018830
Issued by
Minnesota

About this file

This document is a furnace product data sheet for a heating and cooling system specification associated with the Minnesota Department of Natural Resources' Mystery Cave Visitor Center Furnace Replacements project (RFB 2027-433). The sheet provides comprehensive technical specifications for a two-stage furnace system with integrated furnace control (IFC), detailing electrical ratings, wiring configurations, operational timings, and performance parameters. The furnace is designed for multi-stage heating and cooling operation with heat pump capability, featuring a 24 VAC input at 60 Hz with 450 mA transformer secondary current and various output specifications including blower motor, igniter, and inducer outputs. The document includes detailed wiring diagrams, terminal designations, and field wiring instructions for both standard and heat pump configurations, as well as condensate switch options.

The technical specifications outline default blower motor tap selections for different operational modes (continuous fan, cooling stages, heating stages, and heat pump operation), error codes with corresponding diagnostic meanings, and operational status indicators displayed on a seven-segment display. Key operational timings include prepurge at 0 seconds, interpurge at 60 seconds, post purge at 5 seconds, ignition warmup at 20 seconds, and a heat-on delay of 30 seconds. The documentation includes extensive notes addressing wire temperature ratings, pressure switch configurations, thermostat jumper requirements, airflow adjustments, flame sense test procedures, and model-dependent variations. Acceptable flame current range is specified at 0.75 to 3 microamps, with flame sense test pads rated at 1 VDC per microamp. The sheet serves as the product data specification that bidders must comply with when furnishing four new furnaces for the visitor center replacement project.

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Text version

BK BLACK OR ORANGE BR BROWN

WH WHITE PR PURPLE RD RED

YL YELLOW GR GREEN BL BLUE

YL

/4

YL

/4

G R/

BK

/4

W H/

WH/40

BK

/3

BK/39

BK/WH/38

BK

/W

H/

YL

/W

H/

YL/WH/36

OR/WH/55

OR/WH/55

BL

/W

H/

BL/WH/37

YL

/4

YL

/5

G R/

BK

/3

G R/

BK

/3

W H/

W H/

BK

/2

BK/28

BK

/W

H/

BK/WH/26

YL

/W

H/

YL/WH/24

RD/WH/23

RD

/W

H/

BL

/5

BL/57

BK/14

BK

/1

W H/

W H/

W H/

WH/15

WH/21WH/21

BK/22

BK/22WH/20

RD/19

BK/18

PR/1

PR

/1

BL/2

BL/2

YL

/3

YL

/3

PR/4

PR

/4

BL/5

BL

/5

RD/6

RD/6

BR/7

BR

/7

BR/53

BR

/5

RD/9

RD

/9

G R/

BR/10

BR

/1

WH/12

PR/54

YL/50

YL/50

YL/49

YL/49

BK

/1

BK/13

G R/

YL

/3

G R/

YL

/3

YL/51

YL/51

YL/48

YL/48

YL/52

BK

/2

BK/29

OR/11

O R/

YL/47

YL/47

YL/46

TO BURNER

BOX HARN

BK/30

BU

RN

ER

B

O X

G

ND

S9X2

SEE NOTES 2, 3, 4, 5

BK

/2

SEE NOTE 8

PANEL LOOP

G R/

YL

GR/YL

YL/45

YL/45

MODEL

DEPENDENT

* SEE NOTE 7

BL

/4

BL/42

RD/WH/35

BL/WH/25

BL

/W

H/

OR/WH/56

O R/

W H/

NOTES:

1. IF ANY OF THE ORIGINAL WIRING AS SUPPLIED WITH THIS FURNACE MUST BE REPLACED, IT MUST BE WITH WIRE HAVING A TEMPERATURE RATING OF AT LEAST 105°C. WIRES 12, 18, 48, 49, 50, AND 51 REQUIRE A TEMPERATURE RATING OF AT LEAST 250° C.

2. FOR PROPER AIRFLOW IN COOLING/HEAT PUMP MODES, Y1 AND/OR Y2 MUST CONNECT FROM THE THERMOSTAT TO THE IFC LOW VOLTAGE TERMINAL STRIP.

3. FOR COOLING ONLY SYSTEMS, LEAVE Y1-O JUMPER IN PLACE ON THE IFC FOR CORRECT LED READOUT.

4. FOR HEAT PUMP SYSTEMS, REMOVE THE Y1-O JUMPER, CONNECT "O" FROM THE THERMOSTAT TO "O" ON THE IFC LOW VOLTAGE TERMINAL STRIP

FOR CORRECT LED READOUT AND DEFROST OPERATION.

5. IF USING A SINGLE STAGE HEATING THERMOSTAT, JUMPER W1 AND W2 TERMINALS AT THE LOW VOLTAGE TERMINAL STRIP. HT2 WILL BE SHOWN ON THE SEVEN SEGMENT DISPLAY AT ALL TIMES. SECOND STAGE OPERATION WILL BEGIN AFTER THE INTERSTAGE DELAY HAS COMPLETED.

6. TO CHANGE AIRFLOW, REFER TO THE INTEGRATED FURNACE CONTROL MENU AND OPTIONS TO SET AIRFLOW AND BLOWER DELAYS.

7. WIRE YL/45 AND RAF-2 ARE NOT PRESENT ON DOWNFLOW MODELS.

8. FLAME SENSE TEST PADS: 1 VDC = 1 MICROAMP. FLAME CURRENT CAN VARY DEPENDING ON THE VOM THAT IS USED AND THE VOLTAGE SUPPLIED TO THE FURNACE. THE ACCEPTABLE RANGE IS 0.75-3 MICROAMPS.

9. IF APPLICABLE CONNECTION FOR FACTORY PROGRAMMING ONLY.

CONDENSATE

SWITCH

PS PRESSURE

SWITCH

FRS FLAME ROLLOUT

SWITCH

RAF REVERSE

AIR FLOW

FUSE

LC LINE CHOKE

GROUND

FP FLAME PROBE

IGN HOT SURFACE

IGNITER

TIMINGS

PREPURGE: 0 SEC.

INTERPURGE: 60 SEC.

POST PURGE: 5 SEC.

IGN WARMUP: 20 SEC.

IAP: 2; TFI: 5 SEC.

RETRIES: 2 RECYCLES: 10

HEAT ON DELAY: 30 SEC.

COOL ON DELAY: 0 SEC.

AUTO RESTART: 60 MIN.

AUTO RESTART PURGE: 60

SEC.

ELECTRICAL RATING

OR EQUIVALENT

INPUT: 24 VAC, 60 HZ.

XFMR SEC. CURRENT:

450 MA. + MV LOAD

MV OUTPUT: 1.5A @ 24 VAC

IND OUTPUT: 2.2 FLA,3.5 LRA

@ 120 VAC MAX.

IGN OUTPUT: 2.0 A @ 120 VAC

CIRC. BLOWER OUTPUT:

14.5 FLA,25 LRA @ 120 VAC

HUMIDIFIER & AIR CLEANER

(DRY CONTACTS)

MAX. LOAD: 1.0 A @ 120 VAC

24 VAC OR 120 VAC MAY BE

USED

FUSE: 5A

INTEGRATED FURNACE CONTROL

DEFAULT BLOWER MOTOR TAP SELECTIONS

COF (CONSTANT FAN): TAP 1

CL1 (FIRST STAGE COOLING): TAP 2

CL2 (SECOND STAGE COOLING): TAP 4

HT1 (FIRST STAGE HEAT): TAP 3

HT2 (SECOND STAGE HEAT): TAP 5

H LINE

N NEUTRAL

GND GROUND

HLO HIGH LIMIT OUTPUT

HLI HIGH LIMIT INPUT

PS1 1ST STAGE

PRESSURE INPUT

PS2 2ND STAGE

PRESSURE INPUT

IND INDUCER

IFC INTEGRATED

FURNACE CONTROL

RAF REVERSE AIRFLOW

TH 24VAC (HOT)

TR 24VAC (COMMON)

MVC VALVE COMMON

MVL VALVE LOW STAGE

MVH VALVE HIGH STAGE

TNS TRANSFORMER

ILI INDUCER LIMIT INPUT

IGN IGNITER

FP FLAME PROBE

HI 2ND STAGE

LO 1ST STAGE

LINE

LINE

24V

24V

FIELD

WIRING

FACTORY

WIRING

2 Stage Inducer with CTM Blower Motor

1 dl 1 sdStatus Codes

Idle 1st Stage Heating 2nd Stage Heating Blower Tap Number Continuous Fan 1st Stage Cooling 2nd Stage Cooling 1st Stage Heat Pump 2nd Stage Heat Pump Defrost Mode Menu Options Active Alarm Menu Last 6 Faults (To Clear, Hold Option Button 5 sec) Code Release Number Cooling Off Delay (sec) Outdoor Unit Heat Off Delay (sec)

Inter-Stage Delay (sec) Blower Tap Number for Continuous Fan C1. Blower Tap for 1st Stage Compressor Mode C2. Blower Tap for 2nd Stage

H1. Blower Tap for 1st Stage Heating H2. Blower Tap for 2nd Stage Heating Run Test Mode Error Codes Loss of the IRQ/other internal failures Retry exceeded (Failed to est flame) Recycles exceeded (loss of established flame) or 10X PS1 open 1st Stage Gas Valve not energized when it should be exceeded after 10 times Shorted Pressure Switch, 1st Stage Open Pressure Switch, 1st Stage Shorted Pressure Switch, 2nd Stage

Open Pressure Switch, 2nd Stage Open Thermal Limit, Rollout Switch, or Reverse Airflow Switch Flame detected, should not be present Voltage reversed polarity Bad Grounding

(1) Igniter relay fails

(2) Igniter open 1st stage gas valve (MVL) is energized when it should be off Flame current is low, but still strong enough to allow operation.

Open Inducer Limit Switch or Condensate Switch

(1) 1st stage gas valve not energized when it should be

(2) 1st stage gas valve relay stuck closed

(3) 2nd stage gas valve relay stuck closed

(4) 2nd stage gas valve energized when it should not be

(5) 2nd stage gas valve not energized when it should be Open fuse

E04 E05

E08 E09 E11

E12

D346024P01 REV F

C0f

COP

HtP rUn

E01

Ht1 Ht2 tp

COF

CL1

CL2

HP1

HP2

dFt

Err L6 F

Cr COd OdU H0d

BL

/5

BL/58

SEE NOTE 9

Compressor Mode

X X

BLOWER

MOTOR

C

L

G

N

24v 120v

TNS

VENT

MOTOR

(INDUCER)

GAS

VALVE

1 2 3

RAF-1

IGN

PS1PS2

X

X

INDUCER_LIMIT

THERMAL_LIMIT

FLAME_ROLLOUT2

FLAME_ROLLOUT1

FLAME_PROBE

LINE CHOKE

FP

HLI

MVH

MVL

GND

PS2

TH

MVC

HLO

PS1

TR

ILI

T N

S -H

C

IR

C -H

LIN

E

-H

LIN

E

-N

(blocked)

C

IR

C -N

T N

S -N

IGN-N

IND-N

IND-LO

IND-HI

IGN-H

IFC

EAC HUM LINE NEUTRAL

W2W1 R G B/C Y2 Y1 O

THERMOSTAT

FP

12 123

MENU OPTION

TAP1

TAP2

TAP3

TAP4

TAP5

GND

5 1

CONDENSATE

JUNCTION BOX

120v 60 Hz. 1 PH

POWER SUPPLY PER LOCAL CODE

H N

GND

X

X

RAF-2

121110987654321

1 2 3 4 5 6 7 8 9 10 11 12

123 1234

1 2 3

E2.1 E2.2

E2.3

E3.1 E3.2 E3.3

E6.1 E6.2 E6.3

E7.1

E3.4

JUMPER

MODEL

DEPENDENT

RD/WHRD/WH

YL/WH YL/WH

BK/WH BK/WH

BL/WHBL/WH

GR/BK

BR

BR

BL

BL

RDRD

YL

YL

YL

BK

RD

WH

G R

/Y L

G R

/Y L

Y L

GR

YL

YL

YL

WH WH

BK

BK

W H

WH

BK

B K

WH

WH

BK

B

K

B K

BK

BL

RD

BR

BR

BR

BR

BK

BK

WH

WH

PR

PR

PR

PR

PR

OR

OR

WH

BURNER

BOX GND

B K

BK

BK

PANEL LOOP

YL YL

OR/WH OR/WH

BL

BLVENT

MOTOR

(INDUCER)

IGN

ILI

TR

PS1

HLO

MVC

TH

PS2

GND

MVL

MVH

HLI

FP

W2 W1 R G B/C Y2 Y1 O

THERMOSTAT

LINE-H

CIRC-H

TNS-H

TNS-N

CIRC-N

LINE-N

IGN-H

IND-HI

IND-LO

IND-N

IGN-N

TAP1

TAP2

TAP3

TAP4

TAP5

GND

IFC

JUNCTION BOX

120v 60 Hz. 1 PH

POWER SUPPLY PER LOCAL CODE

H N

GND

LI

N

E C

H O

K E

JU

M

P E

R

24v 120v

TNS

G A

S V

A

LV

E

FLAME_ROLLOUT1

FLAME_ROLLOUT2

RAF-1

THERMAL_LIMIT

INDUCER_LIMIT

PS2

CONDENSATE

PS1

F

LA

M E

P R

O B

E

RAF-2

BLOWER

MOTOR

G

N

L

C

S9X2

Notes:

1) HP = Wiring used for Heat Pump System.

2) CS = wiring used for Condensate Switch (2 Options).

3) Y1 and/or Y2 must be connected from the thermostat to the IFC for proper airflow.

4) Remove Y1-O jumper for HP systems. O terminal must be connected as shown for gas heating operation during defrost.

5) If the thermostat does not have a W2, or there are not enough conductors, jumper W1 to W2 at the IFC.

6) A/TCONT824 thermostats do not require the use of X2.

7) Recommended 1 st stage airflow is 75% of total airflow.

W2

W1

R

G

B

Y2

Y1

O

W2

W1

R

G

B

Y2

Y1

HP

HP

HP

X2

R

B

Y1

O

Thermostat Furnace

(IFC)

Outdoor Unit (OD) (No Transformer)

HP O

CS2

CS1

Y2

Red

Blue Black

Green

A/TFD Field Wiring Using EAC Terminals

EAC

R

B

Replace the factory installed 35va transformer with the 50va transformer supplied with the air cleaner. Connect to EAC terminals on the IFC per the wiring diagram.

W2

W1

R

G

B

Y2

Y1

O

W2

W1

R

G

B

Y2

Y1

HP

HP

HP

X2

R

B

Y1

O

Notes:

1) HP = Wiring used for Heat Pump System.

2) CS = wiring used for Condensate Switch (2 Options).

3) Y1 and Y2 must be connected from the thermostat to the IFC for proper airflow.

4) Thermostat must be setup for 2 stage OD.

5) IFC Must be setup for 2 stage OD using the Menu/Option Buttons.

6) For S9X2, remove Y1-O jumper for HP systems. O terminal must be connected as shown for gas heating operation during defrost.

7) Recommended 1 st stage airflow is 75% of total airflow.

8) A/TCONT824 thermostats do not require the use of X2.

9) W2 and O not available for S9B1 or S9X1.

10) EAC/HUM terminals not available on S9B1.

Thermostat Furnace

(IFC)

Outdoor Unit (OD) (No Transformer)

HP O

CS2

CS1

Red

Blue Black

Green

A/TFD Field Wiring Using EAC Terminals

EAC

R

B

Replace the factory installed 35va transformer with the 50va transformer supplied with the air cleaner. Connect to EAC terminals on the IFC per the wiring diagram.

File details come from the government source that posted it. Updated .