Carrier 48/50HJ004-014 specifications Install field wiring as follows

	MAX WEIGHT			A		B		C
	lb	kg	in.	mm	in.	mm	in.	mm
48HJ008 w/62AQ200	1310	595	77.42	1966.5	66.50	1689.10	42.12	1070
48HJ008 w/62AQ300	1355	616	77.42	1966.5	66.50	1689.10	42.12	1070
48HJ009 w/62AQ200	1315	597	77.42	1966.5	66.50	1689.10	42.12	1070
48HJ009 w/62AQ300	1360	618	77.42	1966.5	66.50	1689.10	42.12	1070
48HJ012 w/62AQ200	1400	636	77.42	1966.5	66.50	1689.10	50.12	1273
48HJ012 w/62AQ300	1445	657	77.42	1966.5	66.50	1689.10	50.12	1273
48HJ014 w/62AQ200	1440	655	77.42	1966.5	66.50	1689.10	50.12	1273
48HJ014 w/62AQ300	1485	675	77.42	1966.5	66.50	1689.10	50.12	1273
50HJ008 w/62AQ200	1240	564	77.42	1966.5	66.50	1689.10	42.12	1070
50HJ008 w/62AQ300	1285	584	77.42	1966.5	66.50	1689.10	42.12	1070
50HJ009 w/62AQ200	1245	566	77.42	1966.5	66.50	1689.10	42.12	1070
50HJ009 w/62AQ300	1290	586	77.42	1966.5	66.50	1689.10	42.12	1070
50HJ012 w/62AQ200	1325	602	77.42	1966.5	66.50	1689.10	42.12	1070
50HJ012 w/62AQ300	1370	623	77.42	1966.5	66.50	1689.10	42.12	1070
50HJ014 w/62AQ200	1345	620	77.42	1966.5	66.50	1689.10	42.12	1070
50HJ014 w/62AQ300	1410	641	77.42	1966.5	66.50	1689.10	42.12	1070

Fig. 6B — Rigging Label — COBRA™ Energy Recovery Unit — Sizes 48/50HJ008-014

If the 208/230-v unit is to be connected to a 208-v power sup- ply, the transformer must be rewired by moving the black wire with the 1/4-in. female space connector from the 230-volt con- nection and moving to the 200-volt 1/4-in. male terminal on the primary side of the transformer.

Refer to unit label diagram for additional information. Pig- tails are provided for field wire connections. Use factory- supplied splices or UL (Underwriters’ Laboratories) approved copper/aluminum connector.

When installing units, provide a disconnect per the NEC.

All field wiring must comply with NEC and local requirements.

Install field wiring as follows:

1.Install conduit through side panel openings. Install con- duit between disconnect and control box.

2.Install power lines to terminal connections as shown in Fig. 7.

Voltage to compressor terminals during operation must be within voltage range indicated on unit nameplate (see Tables 1A-1H). On 3-phase units, voltages between phases must be balanced within 2% and the current within 10%. Use the for- mula shown in the legend for Tables 1A-1H, Note 2 to deter- mine the percent of voltage imbalance. Operation on improper line voltage or excessive phase imbalance constitutes abuse and

may cause damage to electrical components. Such operation would invalidate any applicable Carrier warranty.

FACTORY-SUPPLIED NON-FUSED DISCONNECT — The factory-supplied disconnect is capable of handling disconnect amps up to 80 A for a COBRA Energy Recovery unit. For dis- connect amps greater than 80 A, a field-supplied disconnect is required.

FIELD CONTROL WIRING — Install a Carrier-approved accessory thermidistat assembly according to installation instructions included with the accessory. Locate thermidistat as- sembly on a solid wall in the conditioned space to sense average temperature in accordance with thermidistat installation instruc- tions on page 30. Connect thermidistat wires to terminal board.

Route thermidistat cable or equivalent single leads of col- ored wire from subbase terminals through connector on unit to low-voltage connections (shown in Fig. 8). Thermidistat con- trol wiring is routed to both the rooftop unit control box and the energy recovery section control box.

If a PremierLink™ control is used, a thermidistat does not need to be used. A humidistat and a separate room air sensor are used. Two extra terminal blocks (TB2 and TB3) are provid- ed in the control box for all units with PremierLink controls. No wiring should be directly connected to the PremierLink control. Wire sensors to TB2 or TB3. Humidistat is wired to TB1 and energy recovery section control box.

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