Echelon HC1B Installation And Start-up Instructions Manual - page 5
Use No. 18 AWG color-coded, insulated (35°C minimum) wires. If thermostat is located more than 100 ft from unit (as measured along the control
voltage wires), use No. 16 AWG color-coded wires to avoid excessive voltage drop.
Use furnace transformer, fan coil transformer, or accessory transformer for control power, 24-v/40-va minimum.
NOTE:
Use of available 24-v accessories may exceed the minimum 40-va power requirement. Determine total transformer loading and increase
the transformer capacity or split the load with an accessory transformer as required.
NOTE:
The defrost timer is factory set for 90-minute cycles. The timer can be field set for 30- and 50-minute cycles depending on defrost
conditions in your geographical location.
PROCEDURE 7—INSTALL ELECTRICAL ACCESSORIES
Refer to the individual instructions packaged with the kits or accessories when installing.
PROCEDURE 8—START-UP
1. If equipped with a crankcase heater, energize a minimum of 24 hrs before starting unit. To energize heater only, set thermostat at OFF
position and close electrical disconnect to outdoor unit.
WARNING: Service valve gage ports are equipped with Schrader valves. To prevent personal injury, wear safety
glasses and gloves when handling refrigerant.
2. Fully open liquid and vapor service valves.
3. Unit is shipped with valve stem(s) front seated and caps installed. Replace stem caps after system is opened to refrigerant flow. Replace
caps finger-tight and tighten additional 1/6 turn using a backup wrench on valve body flats to prevent distortion of sheet metal.
4. Close electrical disconnects to energize system.
5. Set room thermostat at desired temperature.
Fig. 6—Service Valve with Sweat Adapter Tube
A92465
PISTON BODY
PISTON
PISTON RETAINER
INTERNAL STRAINER
SWEAT/FLARE ADAPTER
Fig. 7—Line Power Connections
A91056
DISCONNECT
PER N. E. C. AND/OR
LOCAL CODES
CONTACTOR
GROUND
LUG
FIELD GROUND
WIRING
FIELD POWER
WIRING
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