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2. Installation
ELECTRICAL CONNECTIONS
Electrical Rating 50 Hz 240 Volts AC, single phase.
This heater is designed to operate at 240 VAC. It is not recommended to be connected to OR operate on a 208 VAC.
If any of the original wiring supplied with this heater must be replaced, installer must supply (1.16 mm, 600V, 105° C, IEC approved
low energy stranded) copper wire or it's equivalent.
Please read the boxes headed "IMPORTANT! READ ME FIRST!"
on pages 25 and 29 before proceeding.
1. All wiring must be in accordance with all applicable codes and
must be wired by a licensed electrician to the
European Standard Codes of Practice wiring rules.
2. The heater, when installed, must be electrically grounded and
bonded in accordance with European Standard Codes of
Practice. A bonding lug is provided on the outside of the panel
under the vent for this purpose.
3. Electrical power circuits to the pool heater must follow European
Standard Codes of Practice.
4. All wiring between the heater and devices not attached to it, or
between separate devices which are installed in the field, must
be "Type T" wire rated for 35°C rise.
5. The filter pump should run continuously when the heater is
on, and for at least 15 minutes after the heater turns off.
Any switches in the pump circuit (including circuit breakers)
that can disconnect the pump must also disconnect the heater.
6. Do not wire single-pole switches, including protective devices,
into a grounded line. The heater is not sensitive to polarity.
Use the provided waterproof wire nuts when connecting the
power supply.
A time clock controlling the filter pump should have a low-voltage Fireman's Switch that switches off the heater at least 15
minutes before shutting off the pump.
CONNECTION OF FIREMAN'S SWITCH OR REMOTE CONTROL
If, while there is line voltage connected to the heater, you touch either line voltage terminal with any 24VAC wire that is
connected to the control board (including the Fireman's Switch jumper), you will immediately destroy the control board
and void the warranty.
P/N 475106 Rev. D 1/2016
All manuals and user guides at all-guides.com
CAUTION
NOTE
CAUTION
MASTERTEMP
240 VAC Power Plug.
AC Plug
240 Volt
Figure 27.
™
Pool and Spa Heater Installation and User's Guide
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