York H2RA036 - Page 7

7
Unitary Products Group
FIGURE 5 – TYPICAL FIELD WIRING FOR 036 – 060 MODELS
C
YRGW
YRG
W
*
POWER
CONTROL
FACTORY
POWER
WIRING
208/230–3–60
460–3–60
24 VOL T CONTROL WIRING
MINIMUM 18 GA. WIRE
(NEC CLASS 2)
FURNACE OR AIR HANDLER
TERMINAL BLOCK
ROOM THERMOST AT
GND. LUG
CONTACTOR
TERMINALS
COIL
ALL OUTDOOR WIRING MUST BE WEA THERPROOF.
USE COPPER CONDUCT ORS ONL Y.
TERMINAL W IS ONL Y REQUIRED
ON SYSTEMS WITH HEA T.
*
FIGURE 6 – TYPICAL FIELD WIRING FOR 076 & 090 MODELS WITH AIR HANDLER
POWER
24
VOL T CONTROL
WIRING MINIMUM
18 GA. WIRE
(NEC CLASS 2)
FACTORY
POWER WIRING
208/230–3–60
460–3–60
AIR HANDLER
TERMINAL BLOCK (4TB)
TYPICAL
THERMOSTAT
GND. LUG
CONTACT OR 1
TERMINALS
ALL
OUTDOOR WIRING MUST BE WEA THERPROOF.
USE COPPER CONDUCT
ORS ONL Y.
JUNCTION BOX
R B Y O W X 53 G 60 66
RG
OUTDOOR
UNIT
RED: 24 V AC
BROWN: COMMON
YELLOW: 1ST
. ST AGE COOLING
ORANGE: 2ND. ST AGE COOLING
RED
YEL BRN
ORG
090 ONL Y
Y
R AND Y FIELD WIRING CONNECTED TO
THESE DUMMY TERMINALS ON 4TB CAN BE
ROUTED DIRECTLY FROM THE OUTDOOR
UNIT
T O THE THERMOST A T IF DESIRED.
FIGURE 7 – TYPICAL FIELD WIRING FOR TWO ST AGE 090 MODEL WITH AIR HANDLER
POWER
24
VOL T CONTROL
WIRING MINIMUM
18 GA. WIRE
(NEC CLASS 2)
FACTORY
POWER WIRING
208/230–3–60
460–3–60
AIR HANDLER
TERMINAL BLOCK (4TB)
TYPICAL
THERMOSTAT
GND. LUG
CONTACT OR 1
TERMINALS
ALL OUTDOOR WIRING MUST BE WEA THERPROOF.
USE COPPER CONDUCT ORS ONL Y.
JUNCTION BOX
R
G
OUTDOOR
UNIT
RED:
24 V AC
BROWN: COMMON
YELLOW: 1ST
. ST AGE COOLING
ORANGE: 2ND. ST AGE COOLING
RED
YEL
BRN
ORG
Y1 Y2
R B Y O W X 53 G 60 66