Carrier 38AKS014-024 Install Control Wiring, 30GT Piping Schematic, 30GT Stub Locations

LEGEND

TXV — Thermostatic Expansion Valve

Factory Piping

Field Piping

NOTE: The bypass valve in this package has 5/8 in. connections and can be used directly on 30GT015- 035 units.

Fig. 1 — 30GT Piping Schematic

DISCHARGE STUB (HIDDEN)

LIQUID

STUB

Fig. 2 — 30GT Stub Locations

Install the field-supplied 1/4 in. OD tubing from the SAE connection to the TXV equalizer line. If the connection is made directly to the TXV, use the field-supplied, 3-way tee with an internal branch (install horizontally in the line with the internal branch attaching directly to the TXV). If the connection is made into the equalizer line, use the field-supplied, standard 3- way tee.

Step 2 — Dehydrate and Recharge the Cir- cuit — When piping is completed, leak test the assembly and replace the filter drier cores. Then evacuate, dehydrate, and re- charge the circuit, using approved refrigeration practices.

Step 3 — Install Control Wiring

Be sure all power to the unit is off before proceeding, and that all disconnects are open and tagged.

Follow all local codes and NEC (National Electrical Code, U.S.A.) when installing control wiring. All wire must be a min- imum of 16 AWG (American Wire Gage, U.S.A.).

Connect control wires as shown in Fig. 3. At hot gas sole- noid (HGS), connect to brown and orange wires as shown.

	LEGEND
COM — Common	NC — Normally Closed	TC —	Temperature Controller
HGS — Hot Gas Solenoid	NO — Normally Open	U1 —	Unloader 1

Fig. 3 — 30GT Hot Gas Solenoid Wiring

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