Carrier 48/50HJ004-014 specifications Low Voltage Connections Units with PremierLink Controls

Page 28

FOR MOISTUREMI$ER UNITS ONLY

LIGHT

COMMERCIAL

THERMIDISTAT

ACCESSORY

62AQ

CONNECTION BOARD

OPTIONAL

HUMIDISTAT (HL38MG029)

Fig. 8 — Light Commercial Thermidistat Accessory Low-Voltage Connections

Step 9 — Assemble and Mount Supply-Air Hood — The hood kit supplied with the energy recovery section is needed to complete this installation. See Fig. 11. The energy recovery section supply air hood installs around its motorized damper inlet.

NOTE: Mount the hood sides to the energy recovery section first, and then the hood top for easier installation. The ther- mostats are shipped factory-wired and taped behind the damper blade of the energy recovery section. Knobs and screws are in hood package.

1.

Assemble and mount supply air hood as shown in Fig. 11.

2.

Discard the tape that holds the thermostats behind the

 

damper plates. Mount thermostats to the hood sides of the

 

energy recovery section unit into the holes provided, with

 

thermostat terminals facing up. See Fig. 11. Mount out-

 

side cooling set point thermostat part number

 

HH22HA060 (white label) on the left side of the hood.

 

See Fig. 11.

3.

Mount the outside heating thermostat part number

 

HH22HA065 (red label) on the right side of the hood. See

 

Fig. 11.

4.

From the outside of the unit’s side panels fasten the

 

thermostat(s) with two mounting screws, with the quick

 

connect terminals face up. See Fig. 11.

5.

Install thermostat knobs (provided in kit). See Fig. 11.

6.

Set supply air quantity (on units with optional factory-

 

installed supply air fan [GA] or field-installed accessory

 

supply air fan kit [CRFANKIT001-006A00]). Select the

 

fan speed and damper position to obtain desired cfm.

 

Relocate damper stops to the desired position on the

DDC CONTROL CONNECTION

TB3 BOARD

R24 VAC G RMTOCC

CMPSAFE

Y2 FSD

W1 SFS

NOT USED

CC X X

TB1

R

Y1

Y2

W1

W2

G

C

X

R

Y1

Y2

W1

W2

G

C

damper support rail and adjust the fan speed by relocating

the wire on the supply fan motor terminal block. Factory

set position is 45 degrees for the damper position, and

medium speed for the motor. Relocate stops to top hole

for 30 degrees, bottom hole for 60 degrees, and remove

stops for 90 degrees (see Fig. 11).

7. Install the aluminum filter screen and end cap with

screws along the top, as shown in Fig. 11.

Step 10 — Mount the Barometric Relief Damper — The hood kit supplied with the energy recovery section is needed to complete this installation. The exhaust air hood (that includes the barometric relief damper) must be

Fig. 9 — Low Voltage Connections (Units with PremierLink™ Controls)

RACEWAY LOW VOLTAGE

INTEGRATED GAS UNIT

 

CONNECTIONS

CONTROLLER (IGC)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

HOLE IN END

PREMERLINK LOCATION

PANEL (HIDDEN)

(OPTIONAL)

Fig. 10 — Field Control Wiring Raceway

(48HJ Shown)

assembled and installed on the energy recovery section per the instructions below. See Fig. 12.

1.Install the barometric relief damper onto the energy recovery section by mounting the hinge with 2 screws then sliding in the hinge pin. See Fig. 12.

2.Install damper limiter for 30, 45, or 60 degree angles. Limiter pin not required for 90-degree setting (set to the desired position based on CFM requirements and fan speed). See Fig. 12. Fan speed is adjusted by relocating wires on fan terminal blocks.

3.Loosen compressor bolts and remove shipping blocks from under compressor on the 62AQ060 and 62AQ100 sizes only.

4.Install exhaust hood.

5.Install wire guard as shown in Fig. 12.

Never operate the unit without the wire guard in place.

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Contents Safety Considerations ContentsGeneral Duct Opening Sizes InstallationSide View END View Side View Roof Curb Unit Size Accessory CRRFCURB001A00 Connector ALT GAS Power Control PKG. Accy Drain HoleCRRFCURB002A00 Roof Curb Unit Size Accessory CRBTMPWR002A00CRBTMPWR003A00 CRBTMPWR004A00Unit Size Equipment Support Part NumberRear Right Left Side Front Right Side Page Page Page MAX Weight Make Electrical Connections48HJ008 w/62AQ200 Power Supply Disconnect Size Unit Nominal IFM ConvType Outlet FLA MCA Fuse or LRA Hacr BKR HacrHeater Single Disconnect SizePoint BOX Type30.8 025 Cont Nominal IFM Conv Power Supply Disconnect Size Unit Fuse orType Outlet FLA MCA LRA Hacr BKR 40.7 47.7 119 Type Outlet FLA FLA LRA Hacr BKR60.1 Crheater Fuse or Point BOX 68.0 420 68.0 82.8 519/519 017 21.7 25.0 Power Wiring Connections Low Voltage Connections Units with PremierLink Controls Set the Outdoor Cooling and Heat- ing Thermostats Light Commercial Thermidistat Accessory Height Width DepthInstall Light Commercial Thermidistat Light Commercial Thermidistat Keypad To Test FAN Operational Information PRE-START-UP ServiceSTART-UP Unit Operation Flow Diagram Cooling HeatingTroubleshooting Typical Wiring Schematic Standard Controls Typical Wiring Schematic with PremierLink Controls Heating and Cooling Troubleshooting Problem Cause RemedyCopyright 2002 Carrier Corporation Preliminary Information RTU Rooftop Unit RTU and Energy Recovery AQ START-UP ChecklistIII. START-UP IV. Light Commercial Thermidistat Accessory III. START-UP