Check The Power Source; Injector Pump Wiring - Rheem Raypak Hi Delta 302C Installation And Operation Manual

Check the Power Source

A WARNING: Using a multi-meter, check the following
voltages at the circuit breaker panel prior to connecting
any equipment. Make sure proper polarity is followed
and house ground is proven.
Check the power source:
• AC = 104VAC Minimum, 126VAC MAX
• AB = 208VAC Minimum, 252VAC MAX
• BC = 104VAC Minimum, 126VAC MAX
HOT (L1)
BLACK
A B C
Figure 22. Wiring Connections
Figure 23. Multi-meter

Injector Pump Wiring

The 3-phase cold water run pump is shipped loose and
must be field wired.
Before Starting
1. Turn off power to the unit at the circuit breaker.
2. Turn off gas supply.
3. Shut-off the water supply to the heater and, if
necessary, drain water from the system.
4. Locate the pump junction box and wiring decal shown
in Figure 24.
5. Remove the pump junction box cover shown in
Figure 24 and locate the 9 wires inside.
CIRCUIT
BREAKER
HOT (L2)
WHITE
GREEN
GROUND
DECAL
Figure 24. Pump Wiring Decal and Junction Box
6. Wire in accordance with the low-voltage (230VAC)
decal located next to the pump junction box (do not
connect high-voltage 460 volt power to the control
box).
7. In the absence of the pump-mounted decal, use Table
F to complete the wiring between the cold water run
control box and the 3-phase injector pump. Use wire
nuts (field supplied) to complete these connections
and ensure that all connections are tight.
230VAC 3 ø Line
Black
Red
White
Yellow (4) and Black (5) and Violet
———————
Green
Table F. Cold Water Run Control Panel and Injector Pump
Wiring
8. Re-install the injector pump junction box cover.
9. Turn on the water and gas supply.
10. Turn the electrical supply on to the heater and to the
cold water run system.
COVER
Low Voltage Pump Wiring
Orange (3) and Gray (9)
Red (8) and White (2)
Pink (7) and Blue (1)
(6)
Ground Lug
23