QuickDraw
Storage and Semi-instantaneous
Boiler Water Heater
7
PV500-26 05/13
6. Use only non-ferrous water piping and fittings for potable water plumbing and connections. Do not use galvanized
pipe or fittings. Use of ferrous or galvanized pipe or fittings can cause rust to form.
7. Insulate hot water and return circulation lines. Also, if subject to freezing during shutdown or during operation,
insulate all water piping and take whatever steps are necessary to keep the appliance and all water containing
pipes and components from freezing.
IMPORTANT:
Do not use the plumbing connected to the appliance as a
ground for welding or any other purpose.
8. This appliance is equipped with a temperature and pressure relief valve(s) rated for the input. The relief valve
must be pipe to and attached to a suitable open drain (Relief Valve Piping).
9. Pipe the drain valve to a suitable open drain.
10. Thermal Expansion Tank –
If the water heater is installed in a closed water supply system, such as one having a
back-flow preventer in the cold water line, provide thermal expansion control. Contact the water supplier or local
plumbing inspector for additional information.
3.6 Service Clearances and Clearance to Combustibles
The appliance must not be installed on a combustible floor, or on a non-combustible floor covering combustible
material. A minimum clearance of 6” must be provided from any combustible material. However, the recommended
clearance is 24” at the top and front, 18” at left and right sides of the appliance. Optional equipment may increase
the clearance requirements. Allow sufficient space for installing and servicing connections such as water, electrical,
pump and other auxiliary equipment.
Distance minimale aux matériaux combustibles est de 15 cm sur le dessus et les côtés et ne doit pas être installé
sur un plancher combustible.
4 GENERAL
GUIDELINES
4.1 Water Inlet / Outlet Connections
1. Make inlet and outlet water connections directly to the threaded bolt-on bronze tank flanges. Over tightening
connections to the flanges may cause damage to the flange or tank and are not covered by warranty.
2. For ease of service, install unions on inlet and outlet piping to the unit.
3. Piping and components connected to the water heater must be suitable for potable water, for the water
temperatures they will experience and for their application.
4. After plumbing the unit and checking for leaks, the heat exchanger and boiler water and hot water piping
should be insulated. Insulation will reduce wasteful heat loss and will help protect operators from contacting
hot surfaces.
WARNING: Insulate or guard and hot water surfaces. Uninsulated or unguarded steam and hot water
surfaces can cause burns instantly.
