Atch 10 - Question_11.2_HVAC Photos (002).pdf

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A� ( f< M 003. ) CONTROL )'TiP FOK .t-M 1J•'3 (tltM 2il) � AHU•4 (f.M 1-Z.ot,J

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SEQUENCE or OPUAT IOI

THE AIR HANDLIN� UNIT FAM WILL BE INDEXED BY THE TIHECLOC�, DURUG

THC UPIED >IDDE, SPACE THERMOSTAT, Tl, WILL HODUUTE THE CHILLED

WAT R VALVE VI, ANO STEAH REHEAT VALVE, V2, TO HAINTAU THI

OESif'&O SETPOINT A SPACE HUHlDISTAT, Hl, WILL HODULATP! HUHIDirI&R Y-'LV VJ, PElt WHENEVER THI: SENSED SPACE HUMIDITY DROPS &SLOW Hl"S StTPOINT WHENEVER, SPACE HUH TOITY &XEEDS HI'S SETPOIMT VALVB, Vl WILL BC K LATCO OPEN, HJrH JIGNAL SELECTOR, HSS 1, OETERHIIIES

W HER THE COOLIN COIL IS 'UNCTIONING FOR TEMPERATURE OR HUKIDITY

CONTROL, Dr.P£11 ING UPOI THI GREATER NEED or THE SPACE. THI OUTIIDI

AIR DAMPER WILL OPEN WHENEVER THE FAN RUNS

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UPIED DI, THE AlP HANDLING UNIT PAN WILL H orr

AIR �AHPEP CL D THE FAN CAN BE SlARTED HAIUALLT OVERRIDE TIKU OR BT A DROP IN SPACE El<PIRATUU

H STAT, Tl S, SETP INT

E ENTJ'RIN� SIDE or THE COOLIIG FA■ rr ANO CLOSE THE l)UTSIDI

IT SEN E A TEHPERATURE BELOW

•ILL SH T THE rA, OFF SHOULD ST! M BE r.ETECTBD IM THE RETUU

A IGH LIIIIT Hlll!ID TAT, H2, WILL CUT orr STEAK HIDtrltR SHOULD A DISCHARGE

RH BE SU!ED.

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Distribution A.

Approved for Public Release. Distribution is unlimited.

(AEDC PA # AEDC2018-032 & IRA-3622)

INSTALLATION

INSTRUCTIONS

SETPOINT RANGE: 35--68°F (2-20°C).

DIFFERENTIAL: 4.5°F (2.5°C), fixed.

SWITCH ACTION: SPDT, snap acting.

Terminal 1 = Common.

Terminal 2 = NO (closes on temp. fall).

Terminal 4 = NC (opens on temp. fall).

TAfil,E I.

Switch Action

OD'Temperature Fall

On Temperature Rise on man

_ Circuits between Term�,, c.0 l and 2 l and 4

Closes Opens

Opens Closes• the sensed temperature is at least S°F above setpoint.

TABLE II.

Electrical Ratings 120 vac ' 240 vac

INDUCTIVE

F.L.A. 24 24

L.R.A. 144 144 Horsepower 2 3

NON-INDUCTIVE 24 amps @ 120 to 240 vac

PILOT DUTY 720 va @ 24 to 600 vac

MOUNTING

l. Controller case can be mounted in any position.

Avoid locations subject to excessive vibration.

2. On manual reset model, position control to permit convenient access to the reset button.

3. Use three (3) mounting holes in rear of ca�e for flush mounting to duct or other flat surface.

4. For offset mounting, use optional #4512 mounting bracket shown in F'i.gure II.

5. Install capillary element in serpentine pattern across duct on downstream side of the coil so it is exposed to areas where low temperatures will occur. Do not kink or apply excessive force to the capillary element.

6. Fasten capillary at sufficient points to prevent damage from air movement or vibration.

WIRING

l. AU wiring should comply toilat.wnal electrical codes and applicable local ordinances.

2. An opening for installing a collilector for l/2" conduit is provided in the bottom of the case.

3. Recommended wire size i� IO to 14 AWG solid copper wire. Use screwdriver to loosen tenuiual screws in switch block. Strip wire ends 3/8" and insert into box connectors on the switch block.

Securely retighten terwiual screws.

4. For circuit testing, the SPDT switch can be manually activated by IL�ing a screwdriver to operate the test lever located on the scaleplate of the control.

FS/CTE

LOW LIMIT CONTROLS

SENSING ELEMENT: Vapor-filled copper capillary, tin-plated. 5/64" diameter x 20 feet.

RESPONSE: To lowest temperature sensed by any one foot section of capillary element.

TEMPERATURE LIMITS: -600 to + 160°F, operating.

3000F maximum at sensing element.

RANGE ADJUSTMENT

C.W./DECREASE

RESET BUTTON

!MANUAL RESET MODEL ONL YI

TEST LEVER

MOUNTING HOLE

3/16" (.48) X 7/16- (1.11)

GROUND TERMINAL 7/8" 12.221 DIA. KNOCKOUT

FIGURE I.

SETPOINT ADJUSTMENT

3/16" 1.481 DIA.

MOUNTING HOLES

l. The setpoint shown on the controller scaleplate is the temperature at which switch contacts 1-4 will OPEN on a fall in sensed temperature.

2. To change the setpoint, use a screwdriver or wrench to tum the range adjustment screw located in the top of the case. Clockwise rotation decreases the controller setpoint. Tum counterclockwise to increa�e setpoint.

i---------2 3/8"

I ,s 031

TO ALLOW FOR

THREE 131 MOUNTING

POSITIONS ON

CONTROLLER 161

3-9/32" 18.3Jt

:J

SLOTS FOR MOUNTING

ON FLAT SURFACE

FIGURE II.

Optional #4512 Offset Hracket

Distribution A.

Primary Voltage

L1

L2

Earth Ground

..c.- -m

Control Enclosure

Fuse Block 1

Supply Voltage

"SX" Series Wiring Diagram

Diagram No.

SX111L

Pneumatic Revised SepL, 1993

120 volt single phase 50/60 htz Max. Unit Wattage = 30 Watts (1/4 amp.)

��J--t----tt---""'1 Pneumatic Supply From Humidistat.

...... -.... ---.----, Pneumatic signal to Humidifier Control Valve.

Control Transformer

W>,til!/

15-Pt. Molex 12-Pt. Molex L-------t�::::::;,( connector to connector to optional diag- LC-540 I LC741 nostic tester. level controller

PRE-WIR:D Wiring Harness Par, No. WH-2R

Humidifier Model No. sx 1 Control Circuit Voltage: 24 vac Input Signal: s 1 3 osiq

NOTES:

Primary¥o.lfage:•.,., · 120

Type of Coh'trot:> .. Pneumatic Serial No. SX -1021 · '-i ··

, . All wiring 10 be per na1ional and local electrical codes.

2. Must have continuous ground from tank to te�minal #4.

volts 1 ph. --- 60 htz.

LEGEND

- - - Field Wiring -- Control Circuit Wiring

- Power Wiring

� Optional Equipment

Distribution A.