York AC21 series, Руководство по установке

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5284792-UIM-A-0317
Johnson Controls Unitary Products 7
FIELD CONNECTIONS CONTROL WIRING
1. Route low voltage wiring into bottom of control box. Connect low
voltage wiring inside the low voltage box. See Figure 6.
2. The complete connection diagram and schematic wiring label is
located on the inside surface of the unit service access panel.
3. Replace the control box cover removed in Step 2 of the FIELD
CONNECTIONS POWER WIRING procedures.
4. All field wiring to be in accordance with national electrical codes
(NEC) and/or local-city codes.
5. Mount the thermostat about 5 ft. above the floor, where it will be
exposed to normal room air circulation. Do not place it on an outside
wall or where it is exposed to the radiant effect from exposed glass
or appliances, drafts from outside doors or supply air grilles.
6. Route the 24-volt control wiring (NEC Class 2) from the outdoor unit
to the indoor unit and thermostat.
FIGURE 6: Outdoor Unit Control Box
OUTDOOR
D
I SP L A Y
A 0770-001
ACCESS PA N E L
S WI TCH
OUTDOOR
REACTOR
/ CHO K E
OUTDOOR FIL TER
CO N TRO LL ER
( Ma y not b e used
on a ll units )
L O W VO L TA G E
FI E L D WI R ING B O X
AM BI E N T
TEMPERATURE
SE
N SOR
H IG H VO L TA G E
FI E L D WI R ING
H IG H VO L TA G E
CO N DU I T P L ATE
G ROU N D L U G
FI E L D WI R ING
TERM IN A L
BL OC K
IN VERTER
DR I VE
TRA N S F ORMER
MA IN
CO N TRO L
B OARD
DO NOT
connect the “ R ” ter m ina l o f unit contro l b oard .
NOTICE
To eliminate erratic operation, seal the hole in the wall at the thermo-
stat with permagum or equivalent to prevent air drafts affecting the
operation of in the thermostat.
FIGURE 7: Typical Communicating Field Wiring (Air Handler / Furnace)
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