INSTALLATION:
Always shut off main power disconnect to the heater AND the water pump
first. Then, install 3/4“ conduit between the heater and the mechanical water pump time clock.
You will be adding four wires to the existing water pump time clock. Wire size should be a
minimum of 12 A.W.G. and be of different suggested colors such as: Red, Black, Yellow and Blue
through the conduit. See pages 12 & 13 also,
Installation for “Optional” Time Clock Override (T.C.O.)
“
OPTIONAL” WATER PUMP TIME CLOCK OVERRIDE OPERATION
Since the heater will only heat while the water pump is running, the Time Clock Override option
is available to automatically start the water pump when the nits thermostat is calling for heat.
When the T.C.O. button is set to the ON mode, the Time Clock Override feature will start the
water pump whenever the pool requires heat. Once the pool is up to the set temperature the
heater will stop and then 5 minuets later the water pump will stop. When this button is set to the
OFF mode, the heater will operate only when the water pump is running during the timed period
set on the time clock.
25 AMP 2 POLE 220V
T.C.O. CONTACTOR
(ON LEFT)
* WARNINGS *
Shut off power too heater and water pump first !
Water pump and timer must be 220 volts !
Wire size should be a minimum or #12 A.W.G. copper stranded or larger !
The water pump power disconnect must be within 6 feet maximum of the heater !
Do not connect water pumps exceeding 2 horse power and/or 20 Amps maximum.
Do not remove any existing water pump or water pump timer wires !
Do not cross phase power legs or short will occur and breaker will trip!
NOTE: Do not change any of the exist-
ing water pump timer wiring. You will
only add wires to the existing circuit !
See pages 12 & 13 !
Page 11
