Mastertemp Wiring Diagram / Electrical Schematic Ladder Diagram - Pentair MASTERTEMP MT125HD Installation And User Manual

MASTERTEMP WIRING DIAGRAM
(3-WIRE SYSTEM)
AGS Switc h
Stack Flue Senso r
Gas Valve
W
W
Y/W
R
Y R
External Control Interface Circuit Disa bled,
Heater Membrane Pad Ena bled
JMP
1
JMP
1
External Control Interface Circuit
Enabled, "Pool On" and "Spa On"
Keys Disa bled. "OFF" Key on
Membrane Pad Remains Functional .
Plug –12 pin
120V – Bla ck
240V – Red
1
12 Position
Receptacle
JUNCTION B OX
Line 1
BK
Line 2 R
Ground
G
GND
CONNECTION DI AGRA M
Air Flow Switch
Extra Switch 1
Hi-Limit Switch
Pressure Switch
O
O
BL
O
BL
O
PR
PR
PS
HLS
ES1
OPER ATING CONT RO L
AFS
AG S
SFS
JMP3
GAS
1
Spa Line
External Control Interface
W
BK
DIAGNOSTIC INDICATOR
120VAC
IGNITER
BK
O
GY
GY
R
GY
W
BK
Y
BL
NOTICE: Touching any 24 VAC wire, including
the Fireman's Switch wire, to any 120/240V
terminal while the heater is connected to line
power will immediately destr oy the control
board and void the warranty.
Y/R
Y/BL
Y/O
Y/W
Y
Y
Y
Y
Y
BR
BR
NA/LP
Models Only
J6
MEMBRANE PAD
CONNECTION
Common Line
Pool Line
Y
24
F1 F2
VAC
IGNITION CONTROL
MODULE
S1 S1/
120 L1 L2 S2 TH INDVALGND
240
Y/W
GY GY BK GY
Y/O
Y/BL
Y/R
Y/W
GND
BK
BK
BK
W
R
W
BK
Y
BL
G
GND
MasterTemp 125 Pool and Spa Heater Installation and User's Guide
Section 2. Installation
Y/W Y/BL
Y Y/O Y/R Y Y
Y
24VAC
SEC
W
O
BK
TRANS
F
I S
R W
E I L2
L1
FL
T
M
A C
N H
F1 S BM
R
Y
R
BLOWER
Figure 29.
23
|
Y Y
Y
W
R W