Operating The Water Heater - Raypak 910500 Owner's Manual And Installation Instructions

FOR YOUR SAFETY READ BEFORE LIGHTING
TO FILL THE WATER HEATER
Water Heating Applications
• Open all building hot water tap(s) (don't forget the showers) and supply cock(s) and valve(s) in the
system.
•
Open the isolation valves fully on the cold, flow / return and hot water branches to the storage tank(s).
•
Open the cold water isolation valve on the cold water line to the storage tank(s). Air will be forced
out of the taps.
•
Close each tap as water flows freely from it.
•
Check the pipe work for leaks.
Mechanical/Process Heating Applications
•
If a header tank is fitted, ensure it is filled with water.
•
Open the isolation valve on the inlet line to the water heater.
•
Bleed air from the system at all high points to ensure that the entire system is filled with water.
•
Check the pipe work for leaks.
TO TURN ON THE WATER HEATER - Lighting Instructions
Warning: If you smell gas do not attempt to turn on the water heater.
The power supply to the water heater must not be switched on until the system is filled with
water.
Fill the system with water (refer to
1. Open the gas isolation valve fully at the inlet to the water heater.
2. Switch on the electrical supply at the water heaters isolation switch. NOTE: If the water heater is
correctly installed, this will also activate the circulating pump.
The water heater will operate automatically when a call for heat occurs.
3. Before operation, make sure you have read all of the safety information in this manual.
4. Remove upper front panel.
5. Set the thermostat to the lowest setting.
6. Turn off all electrical power to the appliance.
7. This appliance is equipped with an ignition device which automatically lights the burner. Do not try
to light the burner by hand.
8. Turn on main manual gas valve field installed near gas inlet connection on back of heater.

OPERATING THE WATER HEATER

"To Fill the Water
Heater" on page 99)
99