Pentair MASTERTEMP MT200HD - Mastertemp Wiring Diagram; Electrical Schematic Ladder Diagram

P/N 475106 Rev. D 1/2016 MASTERTEMP
™
Pool and Spa Heater Installation and User’s Guide
| 23
MASTERTEMP WIRING DIAGRAM
(3-WIRE SYSTEM)
Figure 30.
2. Installation
GND
L1
GROUND (GND )
L2
JUNCTION
BOX
L1
L2
BM
FL
F1
L1
TRAN S
F
I
R
E
M
A
N
S
S
W
I
T
C
H
Fireman's Switch
Completes the heater
24 Volt AC Control
Board Circuit.
DO NOT connect this
circuit to Line Voltage!
YY
R
W
G/Y
Y
Y
TERMINAL BOARD
TRANS
TRANS
FUSE
FUSE
L2
Time Clock or Remote
(Purchase Separately –
Supplies Power to
Circulator Pump)
24VAC
24VAC
BK
O
O
BK
W
R
BR
BL
W
12 Pin Receptacle
VAL
TH
IND
GND
24VAC 24VAC
FS
THERMISTOR
OPERATING CONTROL
DISABLE TOGGLE
ENABLE TOGGL
E
MEMBRANE PAD
CONNECTION
9
1
J6