PVI Industries PV 19A - Manual

PV 19A 7/12
START-UP OF STEAM AND BOILER WATER HEATERS
**FOR DETAILED INFORMATION SEE INSTALLATION & MAINTENANCE MANUAL **
WARNING: These startup instructions are prepared for a qualified service installer, service
agency or gas supplier and require and rely on the experience and training of these
qualified gas appliance technicians to be safely completed. Attempting to follow these
instructions without such training and experience can result in property damage, exposure
to hazardous materials, personal injury or death.
1. When placing a unit into operation, open relief valve to purge air from top of tank and begin to fill the tank with
cold water. Check for plumbing leaks. Be sure the tank is completely filled before closing the relief valve.
2. Push control switch, located on the control box, to “ON” to activate the control valves (steam or boiler water) and
thermostats. Check the valves for proper operation.
3. Check operating thermostat settings. The operating thermostat is set at the factory at approximately 120°F and the
upper operating thermostat (if supplied) is set at approximately 125°F. Adjustment may be made by turning the
thermostat’s dial to the desired temperature. The temperature limiting device is factory set at 200°F.
4. Push the operating switch to “OFF” before opening manual main steam or boiler water supply valve. The heating
supply should be introduced gradually until all passages of the heat exchanger are filled
5. Start operation gradually. Do not admit steam or boiler water to the unit suddenly when empty or cold. Do not
shock unit with cold fluid when unit is hot. . Slowly bring the unit up to temperature.
6. Do not operate unit under conditions in excess of those specified on nameplate.
7. Open nearby hot water tap to maintain a flow of water through the tank when starting up units. Regulate flow of
water through the tank to allow the control valve to cycle off and on, and check operation of all safety and
operating controls.
8. In all installations there should be no pulsation or water hammer since this causes vibration and strain with
resulting leaks.
9. Retighten bolting on all gasketed joints after the heat exchanger has reached temperature to prevent leaks and
gasket failures. Retightening should be done uniformly and in a diametrically staggered pattern
10. Complete the attached startup report.
Important – Contact PVI Customer Service, 800-433-5654, if any recommended setpoint or analysis
reading falls outside of the recommended ranges before completing startup.