Wiring Guide

TB-211
Model # RES
WIRING DIAGRAM FOR
REMOTE EMERGENCY SWITCH
EWC Controls Inc. 385 Highway 33 Englishtown, NJ 07726 800-446-3110 732-446-3110 FAX [phone]
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P/N 090375A0211 REV. D Copyright EWC Controls, Inc. 2003
NCM-300
2
1
SUPPLY
AIR
SENSOR
C
W
Y
R
G
ZONE 3
T'STAT
ZONE 2
T'STAT
M6
M4
M2
M1
ZONE 3
MOTOR
M6
M4
M2
M1
ZONE 2
MOTOR
M6
M4
M2
M1
ZONE 1
MOTOR
R
C
24 VAC
T'FORMER
O
Y
G
W2/E
W1/B
RH
RC
SYSTEM
CONTROL SYSTEM
5
10
15
20
25
30
35
2nd STAGE
TIMER
34
37
40
43
46
49
52
LOW TEMP
LIMIT
120
110
130
140
150
160
170
HIGH TEMP
LIMIT
R7
C8
F1
RC/RH
LINK
R14
R26
K1
K2
K3
D3
D4
D5
R35
R44
R51
R56
K4
K5
K6
K7
D7
D8
D9
D10
D6
+
C1 D1 R4 R8
CPU
RESET
TIMER
RESET
C4
D2
U1
U2
U3
C6 C7
R6
R5
R10
R9
R11
R13
R12
R18
R19
R23
R24
R25
R29
R30
C5
Y1
C2
C3
R15
R17
R16
R21
R20
R22
R28
R27
R31
Z1
R36
OFF < > ON
S1
FAN DELAY OFF < > ON
PURGE 60s < > 90s
AUTO CHANGEOVER 2m< >5m
SYSTEM HEAT PUMP< >GAS
FAN ELEC < > GAS
OP SYS 0m< >20m
SAS OFF < > ON
NOT USED
R52
R53
R57
R45
C
W
Y
R
G
C
W
Y
R
G
EM
ONE
ZONE
ZONE 1
T'STAT
CONTROLS INC.
Englishtown, NJ
U4
U5
R34
R32
R33
R40
R39
R42
R43
R41
R46
R47
R49
R48
R50
R54
R55
R59
R58
R60
R61
R63
R62
R65
R38
R37
R
STATUS
LED1
LED2
LED4
LED3
LED6
LED5
LED7
LED8
LED9
SUPPLY AIR LIMIT
ZONE 3 OPEN
ZONE 2 OPEN
ZONE 1 OPEN
W2 / EM
W1 / REV VALVE
COMPRESSOR
FAN
Install and wire up an optional REMOTE EMERGENCY switch to the NCM300 or
BMPlus 3000 series Control panels. Turn the switch on to instantly switch over to the
backup/emergency heating system. The Heat Pump compressor is locked out during
emergency heat. The integrated red LED will illuminate on the switch to indicate that
EMERGENCY HEAT is active. All heating requests will be serviced by the backup or
emergency heating system until the switch is turned off. Note: A Remote Emergency
switch can be wired up to both the “EM” and the “ONE ZONE” terminals on the panel..
This will turn the system into a single zone, anytime emergency heat is requested.
EMERGENCY HEAT
MODE
EMERGENCY HEAT
OFF
ON
1
4
2
5
3 6
SWITCH
Cap off #1
Not Used
INTERNAL
WIRE
Jump to
“One Zone”
if desired