Raypak P-R185B To P-R405B - Manual (Page 25)

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NOTE: Input power to the heater (120/240V) can be supplied from the load (pump) side of time clock or directly from
the switch/GFCI power source. It is preferred to make connection to the load/pump side of the time clock. When
using the switched GFCI power source the heater could display false service indicators on the delay panel if the pump
is turned off.
120V WIRING
For 120 V input power to the unit, connect the black wire to the “L1” or hot leg of the power supply. Connect the
white wire to the “L2” or neutral leg of the power supply. Attach the wire nut to the red wire. There should be no
connection to the red wire for 120V operation. For Low NOx pool heaters wire nut each red wire
independently.
Fig. #9471
240V WIRING
For 240 V input power to the unit, connect the black wire to the “L1” or hot leg of the power supply. Connect the red
wire to the “L2” or second hot leg of the power supply. Attach the wire nut to the white wire. There should be no
connection to the white wire for 240V operation. For Low NOx pool heaters wire nut each white wire
independently.
Fig. # 9471.1
Heater must be electrically grounded and bonded in accordance with local codes, or, in the absence of local codes,
with the latest edition of the National Electrical code, ANSI/NFPA 70. (Canada- Canadian Electrical Code, CSA
C22.1, Part 1 and Part 2.)
TRANSFORMER WIRING