Armstrong EFV - WIRING DIAGRAM - ELECTRIC HEAT

Page 12
# 44876D006
HEATERS USED
5 KW = HE1
7.5 & 10 KW = HE1 & HE2
15 KW = HE1, HE2, & HE3
20 KW = HE1, HE2, HE3, & HE4
TB = TERMINAL BLOCK (OPT.)
CB = CIRCUIT BREAKER (OPT.)
SEQ = SEQUENCER
GND = GROUND LUG
LS = LIMIT SWITCH
HE = HEATER ELEMENT
POWER (FACTORY WIRED)
POWER (FIELD WIRED)
CONTROL (FACTORY WIRED)
CONTROL (FIELD WIRED)
CONTROL CIRCUIT WIRING TO
BE 24 VOLT, N.E.C. CLASS 2
PLUG PIN
LOCATION
AMP 350781-1
6-PIN CAP
TD = TIME DELAY (OPT.)
TR = TRANSFORMER
BR = BLOWER RELAY
MTR = BLOWER MOTOR
CAP = MOTOR CAPACITOR
GND = GROUND CONNECTION
WIRING DIAGRAM: NO HEAT
WIRE NUTS
BY OTHERS
TO
GROUND LUG
6-PIN
PLUG
MODELS 12, 25, 31, AND 49
WILL BE FACTORY SET TO LOW
COM
208V
120V
OR
220V
24
C
TR
18 RED
18 BLU
W2
W1
C
G
R
BLK
WHT
BLU
GRN
RED
TD**
(H)
3
1
2
5
(H)
18 RED
18 BLU
18 GRN
18 WHT
18 BLK
GND
BRN/WHT
BRN
CAP
L1
L2 OR
NEUT
* WHT (IF 120V)
BLU
RED
BLK
YEL*
4
3
2
1
BR
4
6
2
3
1
5
14 BLU(MED)
14 RED(LO)
14 BLK(HI)
14 YEL(COM)
14 BLK
18 BLU
14 RED
18 BLU
18 GRN
14 BLK
18 BLU
14 YEL(24OV)
14 WHT(12OV)
14 GRN
TO
THERMOSTAT
BY OTHERS
14 BLK L1
14 YEL L2
1
2
3
4
5
6
6
5
4
3
2
1
TO BLOWER
GROUND LUG
14 YEL
14 GRN
14 RED
GND
18 WHT
6-PIN
PLUG
HE1
HE2
LS2
LS1
12 BLK
12 BLK
12 YEL
12 YEL
12 BLK
12 BLK
5
3
4
1
SEQ1
1st STAGE
*CB1
L1A
L2A
L1B
L2B
GND
220
208/240
VOLTAGE
BY OTHERS
CB2
12 BLK
12 BLK
SEQ2
6
5
4
1
18 BLK
12 BLK
12 BLK
12 YEL
12 YEL
LS3
LS4
HE3
HE4
2nd STAGE
PART NO. 065866900
WIRING DIAGRAM - ELECTRIC HEAT
240V
24V
15 AMP
SUPPLY VOLTAGE
**
**
*
*
**
18 BLU
14 BLK
MTR
Figure 3
Wiring Diagram
P/N 065866900