Carrier 30GTN015-035 Specifications download pdf (Page 4)

Step 4 — Install Control Wiring

Wires between field-installed components and unit control

box must be enclosed in field-supplied conduit. Follow all local

codes and NEC (National Electrical Code U.S.A.). Wire size is

no. 16 AWG (American Wire Gage) (1.5 mm

) minimum. See

Fig. 4-12 for field wiring.

30GN,GT040-420 UNITS — Open the control box door.

Mount the field-supplied hot gas bypass relays A and B

(HGBPR-A, HGRPR-B) in the control box as shown on the

component arrangement label diagrams (Fig. 4). On 30GT

units, mount the field-supplied TDR (time-delay relay) as

shown on the component arrangement label on the unit.

30GN Units

— Using the wires provided in the harness, wire

the coil of HGBPR-A in series between J6-18 and J6-19 of the

4 IN/4 OUT module. Wire the coil of HGRPR-B in series be-

tween J6-21 and J6-22 of the 4 IN/4 OUT module. See Fig. 5.

Locate a black wire in the control harness with the label

HGRPR-A-COM, which originates at TRAN 5. Connect this

wire to the HGBPR-A terminal COM. Connect the wires,

HGBPR-A-NO and TB3-5 to the appropriate terminals per

Fig. 6. For hot gas bypass on circuit B, connect the appropriate

wires to HGBPR-A-COM, HGBPR-B-COM, HGBPR-A-NO,

and TB3-6. See Fig. 6.

Wire in the solenoid valves. Terminal blocks are provided

for easy field wiring. Wires external to the control box must be

run in field-supplied conduit. Use one of the predrilled holes in

the control box with a strain relief to run the wires to the sole-

noid valve from the box. Connect the hot gas bypass solenoid

A (HGBPS-A) between TB3-5 and TB3-8. Connect hot gas

bypass solenoid B (HGBPS-B) between TB3-6 and TB3-8.

See Fig. 6. Check all electrical connections for tightness and

proper location.

30GN HGBP Configuration — Once field-supplied relays are

mounted in the control box, the microprocessor must be con-

figured for the hot gas bypass option. to do this, enter the ser-

vice function using the LID (local interface device). Before

any changes can be made, move the LOCAL/ENABLE-

STOP-CCN switch to the STOP position. The service techni-

cian must also log on to the microprocessor. To do this, press

. The LID will display the word PASSWORD. Press

, and the LID will display LOGGEDON.

To change the configuration:

Press , and the LID will

display FLD CFG. Press until HGB 0 appears in the LID

display screen. Then press for the hot gas bypass

option. The display now reads HGB 1. Once the configuration

is complete, press , and the LID display will now

read LOGGEDON. Press until the LID display reads

LOG OFF. Press and the display will read EXIT LOG.

Using the test function, check the output of the relays. Press

and the display will read OUTPUTS. Press until

the display reads HGBRA 1. Press and the relay energiz-

es. Press and the relay deenergizes. When the check has

been performed, return the LOCAL/ENABLE-STOP-CCN

switch to the proper position. Close and secure the control box

door.

Be sure all power to the unit is off before proceeding. Tag

all disconnects.

When mounting relays, be careful to avoid damaging elec-

trical components and wiring in the mounting area.

Fig. 3 — Schematic Piping; 30GTN015-035; 30HK040-060; 30HL050,060

LEGEND

TXV —

Thermostatic Expansion Valve

Factory Piping

Field Tube (Copper)

1 2 3 4 5 6 7 8 9 ... 15 16

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Carrier 30GTN015-035 Specifications Page 4

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