Carver Cascade MK 2
FROST PRECAUTIONS
IMPORTANT
During periods of freezing weather, when the caravan is unheated, the Cascade 2 MUST be drained to prevent frost damage.
The drain plug which is on the outside of the flue cowl should be unscrewed to permit draining. When the end of the drain plug thread is reached the plug can be pulled out a small distance, yet still be retained in the thread and permit draining to occur. To allow the system and tank to drain effectively, open all hot and cold taps while the heater is still warm. Leave drain plug and taps open for AT LEAST 30 MINUTES, to ensure complete draining. If your system also includes a Crystal Water System, make sure that the pump is emptied of any water and unscrew the filter cartridge to permit it to drain.
To recommission the heater:- Close cold taps and the drain plug and reconnect the pump. Let the system fill with water until water flows steadily from the hot taps. About two gallons of water will be required. Once the hot taps are flowing freely close them and switch on the Cascade 2.
Operating Instructions
1) BEFORE SWITCHING ON make sure that water flows from the hot taps. This indicates that the water heater is full. Check that the gas and electrical supplies have been connected and turned on.
2) SWITCH THE WATER HEATER ON at the wall switch. The green light will come on and remain on. THE GREEN LIGHT indicates that the heater is operating satisfactorily and does not refer directly to the burner operation.
3) THE YELLOW AND GREEN LIGHTS on together show that the voltage of the power supply to the heater is too low. The heater is automatically switched off until the voltage is high enough.
4) THE RED AND GREEN LIGHTS on together show that the burner has failed to light in the 10 second ignition period. This is usually due to failure of the gas supply or, in the case of a new installation, air in the gas pipes. Switch off and on again, which resets the controller and initiates a new ignition sequence. To clear air from the gas lines, several repetitions may be required.
5) TEMPERATURE AND ADJUSTMENTS. The heater is supplied with the thermostat set at maximum (approx 68