Fireman's Switch Connection / Remote Control Connections - Pentair MASTERTEMP 175K BTU/HR Guide D'installation Et D'utilisation

30
REMOTE CONTROL CONNECTIONS
1. Switch off power to heater at main circuit breaker panel.
2. Unbolt and remove the access door panels.
3. Open control box cover (see
4a. To connect a 2-Wire Control (such as Pentair's IntelliTouch
- Remove the factory installed jumper from the Fireman's Switch terminals.
- Connect wires between the Fireman's Switch terminals on the heater and the
relay. Connect wires from the controller or timer to the Fireman's Switch. Controller,
timer or relay should be sized to handle 24VAC at 0.5 Amp (because it will be
completing the 24VAC control board circuit on the heater as shown in
DO NOT apply line voltage to the Fireman's Switch terminals. Use 18 gauge wire
with a minimum 3/64" (1.2mm) thick insulation rated for a temperature rise of at
least 105°C.
- Knock-outs are provided to route the wires through the bottom of the control box
and past the junction box.
4b. To connect a 3-Wire Control:
- Connect wires between the control board terminals on the heater and the external
relays, as shown in
"OFF setting" on each heater mode. Select relays that can handle logic level
switching. DO NOT apply line voltage to control board terminals.
- Move jumper (as shown on
external control and to disable the heater membrane
pad's "Pool ON" and "Spa ON" buttons (the "OFF"
key on the membrane pad remains functional).
- Knock-outs are provided to route the wires through
the bottom and the top of the control box and past
the junction box.
5. Close control box cover.
6. Re-install the access door panels.
To control heaters that are operated in parallel, connect wiring
at same locations on heater as 2-Wire or 3-Wire Control. It
is imperative that each control circuit is isolated from the
other control circuits, to avoid that current will flow from
one heater to another through the control circuits.
NOTICE: The fuse for the Fireman's Switch is a 1.25 Amp
1¼ x ¼" fast blow fuse, which is commonly available.
MASTERTEMP Pool and Spa Heater Installation and User's Guide
Figure 21).
Figure 23. Use at least 2 relays per heater, to allow for an
Figure 23) to enable
Figure 22.
Section 3. Installation Instructions
® ®
or EasyTouch Control Systems) or a timer:
Figure 22).
TRANS
OPERATING CONTROL
BK O
MEMBRANE PAD
CONNECTION
ENABLE TOGGLE
DISABLE TOGGLE
TERMINAL BOARD
F
I
R
E
L1
M
A
N
F1 S
L1
GND
24VAC
Figure 21.
BK
O
Y
Y
Y Y
24 VAC
J6
W
W
TRAN S
S
W
W
I
L2
FL
T
C
H
R
BM
R
L2
Time Clock or Remote
(Purchase Separately –
Supplies Power to
Circulator Pump)
Fireman's Switch
Completes the heater
24 Volt AC Control
Board Circuit.
DO NOT connect this
circuit to Line Voltage!
Rev. N 10/2018