Ingersoll-Rand 4WCA4024A1000A, Руководство по установке

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16 88-4WCA4001-1A-EN
Table 6. Field Wiring Diagram
Notes:
1. Fused disconnect size,
power wiring and grounding
of equipment must comply
with codes.
2. Be sure power supply agrees
with equipment and heater
nameplate.
3. Low voltage wiring to be 18
AWG minimum conductor.
4. See heater nameplate for
current rating of heater
used.
5. See unit and heater
diagram for electrical
connection details.
6. If electric heater accessory
is not installed, omit the
electric heater, associated
power wires and the ‘W’ and
‘X2’ thermostat wires.
7. The WI (WH) wire is first
stage electric heat. If the
electric heater accessory has
two heating stages, The W2
(WH) wire is second stage
electric heat.
INTER-COMPONENT WIRING
24V
LINE V
24V.
LINE V.
FACTORY
WIRING
FIELD
WIRING
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I PH
POWER
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B
G
Y
W
X2
R
O
O(OR) SWITCHOVER VALVE
from drw. D758087P02
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Low voltage control wiring should not be run in conduit
with power wiring unless Class 1 wire of proper voltage
rating is used. Route the thermostat cable or equivalent
single leads of No. 18 AWG colored wire from the
thermostat subbase terminals through the rubber
grommet on the unit. See Figures 1 and 2 for the
control entry (24V Entry) location. Make connections as
shown on
Table 6, p. 16
Do not short thermostat wires since this will damage
the control transformer.
Refer to the table below for recommended wire sizes
and lengths for installing the unit thermostat. The total
resistance of these low voltage wires must not exceed
one (1) ohm. Any resistance in excess of 1 ohm may
cause the control to malfunction because of the
excessive voltage drop.
Table 7. Thermostat Wire Size and Maximum Length
Wire Size
Maximum Length (Ft)
18 75
16 125
14 200
IIm mp po orrtta an ntt:: Upon completion of wiring, check all
electrical connections, including factory
wiring within the unit, and make sure all
connections are tight. Replace and secure
all electrical box covers and access panels
before leaving the unit or turning on the
power to the unit.
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