Field Wiring Connection - Raypak 992C Installation & Operating Instructions Manual

Field Wiring Connection

CAUTION: Label all wires prior to disconnection
when servicing controls. Wiring errors can cause im-
proper and dangerous operation. Verify proper
operation after servicing.
NOTE: Do not combine low and high voltage in the
same conduit.
DANGER: SHOCK HAZARD
Make sure electrical power to the heater is discon-
nected to avoid potential serious injury or damage to
components.
Fig. 31: Wiring Location
Wiring the Enable/Disable
Connect the Enable/Disable wiring(terminals 11 and
12) to the field wiring terminals (shown in Fig. 30).
Alternately, any dry contact closure (including a
remote thermostat) across these terminals will enable
the Hi Delta unit to run. Caution should be used to
ensure neither of the terminals becomes connected to
ground.
Wiring the Outdoor Sensor
1. There is no connection required if an outdoor sen-
sor is not used in this installation.
2. If using an Outdoor Sensor (option B-32), connect
the sensor wires to the terminals marked OUT-
DOOR SENSOR (see Fig. 33). Caution should be
used to ensure neither of these terminals
becomes connected to ground.
3. Use a minimum 18 AWG wire for runs of up to 150
feet.
4. Mount the outdoor sensor on an exterior surface of
the building, preferably on the north side in an
area that will not be affected by direct sunlight and
that will be exposed to varying weather conditions.
Fig. 33: Low Voltage Field Wiring
28
Fig. 32: Low Voltage Field Wiring Location