York EVAPORATOR BLOWERS K2EU060, Technical Manual

Page: 24 / 28

036-21300-002-A-0905
24 Unitary Products Group
FIGURE 10 - FIELD WIRING FOR POWER SUPPLY
COOLING ONLY UNITS AN D UNITS WITH
STEAM OR HOT WATER COIL ACCESSORY
TERMINALS ON
SU PP LY AIR
B LOWER MOTOR
CONTACTOR 10M
GROUN D
SCREW
P OWER WIRING,
D ESCONNECT SWITCH
AN D FUSING TO B E
SU PP LIE D B Y FIEL D
LINE VOLTAGE
P OWER SU PP LY
*Not required on 060 (1- P hase
only) All other units are 3- P hase.
TERMINALS
ON FUSE HOL D ER
IN ELECTRIC HEAR
CONTROL B OX
GROUN D LUG
IN ELECTRIC HEAT
CONTROL B OX
P OWER WIRING,
D ESCONNECT
SWITCH
AN D FUSING
(OR CIRCUIT
B REAKER)
TO B E SU PP LIE D
B Y FIEL D
3- P HASE
LINE VOLTAGE
P OWER SU PP LY
NOTE: USE CO PP ER
CON D UCTORS ONLY
WIRE IN ACCOR D ANCE WITH LOCAL
AN D NATIONAL ELECTRICAL CO D ES
UNITS WITH ELECTRIC HEAT ACCESSORY
FIGURE 11 - COOLING ONLY UNIT
TERMINALS ON
THERMOSTAT 6TH13700724
WITH SU B - B ASE 2T B 08700124
TERMINAL
B LOCK 4T B
ON B LOWER UNIT
1-STAGE COOLING
24- V OLT
CONTROL
WIRING
TO
CON D .
UNIT
R R
Y
Y
G
G
B
TERMINALS ON
THERMOSTAT 6TH04701724
WITH SU B - B ASE 2T B 04700124
24- V OLT
CONTROL
WIRING
TERMINAL B LOCK 4T B
ON B LOWER UNIT
TO
CON D .
UNIT
2-STAGE COOLING FOR HCA180/KEU180**
COOLING ONLY UNITS
RC
Y1
Y2
G
R
Y
O
G
B
FIGURE 12 - UNIT WITH STEAM OR HOT WATER COIL ACCESSORY
24- V OLT CONTROL WIRING
TO
CON D .
UNIT
TERMINAL
B LOCK 4T B
ON B LOWER UNIT
TO HEATER COIL
CONTROL CIRCUIT
TERMINALS ON
THERMOSTAT
6TH04701524
WITH SU B - B ASE
2T B 04700324
TERMINAL
B LOCK 4T B
ON B LOWER UNIT
TO HEATER COIL
CONTROL CIRCUIT
TERMINALS ON THERMOSTAT 6TH13700724
WITH SU B - B ASE 2T B 17700324
24- V OLT CONTROL WIRING
1-STAGE COOLING
2-STAGE COOLING FOR HCA180/KEU180**
UNITS WITH STEAM OR HOT WATER COIL ACCESSORY
R
Y
G
W
R
Y
G
B
R
Y1
Y2
G
W
R
Y
O
G
B
TO
CON D .
UNIT