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VACATION TEMPERATURE HOLD:
Press HOLD. Adjust temperature as desired with UP/DOWN. Temperature setting will
not change even after next program period begins. To clear, press HOLD again.
SECTION 4
(PUMP RELAY BOX)
For use with the Mermaid Standard 24v Controls.
The Mermaid FX-1 Thermostat requires a different pump relay box. Contact the
Mermaid factory for details. The instuctions for the FX-1 Thermostat Relay Box
will be included upon the purchase of this product.
A. INTRODUCTION:
1. When two air conditioners are to be cooled using a single water pump, a relay
switching box must be used to interface the air conditioners to the pump. Only one air
conditioner can be allowed to apply power to the pump at any given time to preclude a
doubling of power on the pump. The relay switching box will recognize the first air unit
providing power to the pump. Whenever the pump is running, both units will receive
water even if the second unit is not in operation. When the second air unit becomes
operational the relay switching box will isolate this unit from the pump so double power
is not applied, however, if the first air unit reaches temperature and shuts down, the relay
switching box will automatically turn control of the pump operation over to the second
unit allowing normal operation to continue. The second air unit will maintain control of
the pump until it reaches temperature and cycles off, even if the first unit cycles back on
while the second unit is operating.
2. A separate 5 amp circuit breaker will be required to be installed in the Main Circuit
Breaker Panel to provide 115 (or 220) vac power to the Pump Relay Box.
B. INSTALLATION:
1. Before proceeding further, put the air conditioner(s) circuit breakers in their "OFF"
positions and disconnect all AC power from the boat.
WARNING
FAILURE TO DISABLE ALL AC POWER TO THE BOAT COULD RESULT IN
ELECTRICAL SHOCK CAUSING SERIOUS INJURY OR DEATH.
2. Install a 5 amp circuit breaker in the Main Circuit Breaker Panel using 16 gauge boat
power cable. Route this cable to the Pump Relay Box which must be mounted in a dry
non-explosive environment adjacent to the pump. Before cutting the cable, leave a