Product specifications

68
Combustion and Leak Testing of DPW units
As the front cover of the unit is mechanically attached and cannot be removed in
operation without the use of a tool, it is not permissible to conduct combustion
testing or leak testing of the unit with the front cover removed.
Combustion testing must be achieved by using a calibrated combustion tester,
with the probe inserted either in the flue exhaust of the vent termination or it is
permissible to take reading by accessing the flue pipe approximately 12” above
the unit, providing adequate provisions are made for sea
ling any access after
testing to ensure no leakage of flue gases into the occupied space.
Leak testing must take place with the end of the “sniffer probe” at least 1” from
any surface of the unit to ensure that false readings cannot be obtained.
Auto Fill – Closed Loop System
The DPW unit is fitted with a MANUAL Auto Fill valve, supplied in the closed
position.
The Fill Valve is not pressure regulated therefore care must be used when
opening the valve to prevent overfilling of the closed loop system and opening of
the pressure relief valve.
Quietside recommends that the valve be left in the closed position and an
external Boiler Feed Valve e.g. Taco 335/329 be installed in the piping system to
maintain an even pressure in the closed loop system
Manual Auto Fill Valve located on base of cabinet