System Start-Up - Raypak 5350 Installation And Operating Instructions Manual

Refrigerant Low Pressure Control: Stops the compressor
if refrigerant suction (low side) pressure falls too low as
a result of a malfunction, loss of charge or extreme cold
conditions.
Indicator Lamps: There are 6 indicator lamps located on
the unit control panel (see Figure 5):
• Power (amber lamp): When lit, indicates power is
applied to the unit.
NOTE: The heater will not run when the Remote position
is selected on the Pool/Spa selector switch and there is
no remote control system attached.
• Water Flow (green lamp): When lit, indicates normal
water flow.

9. SYSTEM START-UP

1. Verify that the Power lamp is ON and that the pool/
spa pump is running and circulating properly.
2. Verify that the control panel Spa-Remote-Pool switch
is in the Remote (OFF) position; see Figure 6.
3. Turn the control switch to either Pool or Spa to turn
the system ON and raise the thermostat setting
above the current water temperature. At this time
the 2 green lamps should illuminate. The fan and
compressor should start up and run simultaneously.
NOTE: The heater will not run when the Remote position
is selected on the Pool/Spa selector switch and there is
no remote control system attached.
4. Allow the heater to operate for a few minutes to
stabilize operating pressures and to allow various
component temperatures to normalize.
5. Verify that the discharge air temperature is
approximately 8°–10°F (4.4°–5.6°C) cooler than the
air entering the unit. If not, see "Troubleshooting"
on page 13.
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Figure 5. Indicator Lamps — Analog Models
Figure 6.
Heat Demand (green lamp): When lit, indicates the
actual water temperature is below the target water
temperature.
Compressor Delay Active (amber lamp): Under
normal operation, when lit, indicates compressor
anti-short cycle timer is active. The fan will run but
the compressor will be OFF for 6 to 8 minutes.
Defrost Active (red lamp): When lit, indicates unit is
in defrost mode. Defrost mode occurs when ice starts
to form on the outside coil. The fan will continue to
run but the compressor will stay OFF (not heating)
until weather conditions improve.
Low Pressure (red lamp): When lit, indicates failure
in the refrigeration circuit. When this lamp is ON,
service is required. Call for service assistance.
Selector Knobs — Analog Models