LAARS SUMMIT SMW-250 - Install and Operating Manual - Manual (Page 13)

SUMMIT BOILER OR WATER HEATER Page 13
Figure 14. Multiple Summit Water Heaters and Storage Tanks.
Hot Water Supply Piping
Follow the tank manufacturer’s guidelines for
completion of the hot water system connections.
NOTE: A listed temperature and pressure
relief valve listed as complying with the Standard
for Relief Valves and Automatic Gas Shutoff
Devices for Hot Water Supply Systems, 1). ANSI
Z21.22 latest edition, or 2). CAN / CGA 1 - 4.4, of
suitable discharge capacity must be installed in the
separate storage tank system.
4B.2 Combined Water (potable)
Heating and Space Heating
SMW-200/250 Water Heater
Piping and components connected to this water
heater for the space heating application shall be
suitable for use with potable water.
Toxic chemicals, such as used for boiler
treatment, shall not be introduced into the potable
water used for space heating.
This water heater when used to supply potable
water shall not be connected to any heating system or
component(s) previously used with a non-potable
water heating appliance.
When the system requires water for heating
at temperatures higher than required for other
uses, an anti-scald mixing or tempering valve shall
be installed to temper the water for those uses in
order to reduce scald hazard potential.
SECTION 4C.
Condensate Drain Connection
NOTE: Connecting tubing must run
DOWNWARDS from the level of the fitting (see
Figure 16).
1. Connect a plastic tube between the plastic fitting
closer to the front of the appliance and a floor
drain (or optional condensate pump if a floor
drain is not accessible).
2. Connect another plastic tube between the other
plastic fitting and a drain pan.
3. The plastic tubes must not be connected
together because the second tube is a
condensate relief tube that will function to drain
condensate if the first or primary condensate
drain tube becomes blocked.