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Rev. C 11-1-01 P/N 471593
11
Installation (Single Voltage Wiring)
MiniMax NT Low NOx 250 HSI Electronic Ignition Wiring Diagram
(SINGLE VOLTAGE)
GRN
IGN MODULE
IGNITOR
HOT SURFACE
BURNER
LOW GAS PRES.
SWITCH
GRN
VAL
TH
S2
L2
L1
S1
MiniMax NT 250 LOW NOx WIRING DIAGRAM
IF ORIGINAL FACTORY WIRING MUST BE REPLACED, INSTALLER MUST SUPPLY
UL OR CSA (IF CANADA) APPROVED WIRE, 18 GAUGE, 600V, 105 C TEMPERATURE RATING.
THERMAL FUSE WIRING MUST BE REPLACED WITH UL OR CSA (IF CANADA) APPROVED
WIRE, 18 GAUGE, 600V, 125 C TEMPERATURE RATING.
INTERCONNECTING WIRING TO APPLIANCE MUST CONFORM TO THE NATIONAL ELECTRICAL
CODE OR SUPERCEDING LOCAL (WIRING) CODES.
SHEET METAL
GROUND SCREW WITH PAINT CUTTING WASHER
TERMINATE SUPPLY SAFETY GROUND WIRE (GREEN) HERE
CHASSIS
BOND LUG
EXTERNAL
ORG
WHT
GRN
2
1
3
2
1
4
3
2
5
1
4
3
6
2
1
W2
W1
F2
F1
P11
PI0
P7
P4
ORG
RED
THERMAL FUSE
WHT
BLU
RED
SWITCH
WATER PRESSURE
THERMAL SWITCHES
EXHAUST HIGH LIMIT
NEU
HOT
GAS VALVE
BLU
WHT
RED
4 32112312345612
10A
250V
RELAY
RELAY
250V
10A
5A
250V
RELAY
LIMITS G VALVE
IGN MODULE
POWERTPROBEREMOTE
AUX2
123
FC
BLOWER
2
1
3
1
2
TEMPERATURE
PROBE
RED
HIGH LIMIT
THERMAL SWITCHES
120 VAC
FROM
(ONLY)
TERM
FROM
B
COM
SPA
POOL
1
2
3
4
5
3
2
1
GRN
NEU
HOT
(ONLY)
SUPPLY 120 VAC
AIR PR SW.
SWITCH
HI AIR PRES.
FAN
ORG
BLU
RED
WHT
BLOCK
BLOCK
TERM
B
BLOCK
TERM
B
BLOCK
TERM
A
(NEU)
(HOT)
BLK
BLK
WHT
WHT
BLK
WHT
BLK
WHT
ORG
ORG
ORG
RED
RED
WHT
WHT
WHT
WHT
WHTBLK
BLK
BLK
WHT
N
(HOT)