Install Water Piping; Domestic Water Piping - Combi Boiler - Freestyle FS-80 NG Instruction Manual

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16 Install water piping

Domestic Water Piping – Combi Boiler
Hot Water Can Scald!
states recommend domestic hot water tempera-
When installing an automatic mixing valve, se-
lection and installation must comply with valve
washing, dish washing and other sanitizing needs
will scald and cause injury.
capped persons are more likely to be injured by
hot water. Never leave them unattended in or near
a bathtub, shower or sink. Never allow small chil-
require certain water temperatures at hot water
Install automatic mixing valve set according to
those standards.
Use lowest practical temperature setting.
located in air handling units where there may be exposed
with flow control valves or other automatic means to
cooling cycle.
1. Size piping no smaller than flat plate heat exchanges
inlet and outlet.
2. Additional anti-scald devices may be installed at each
3.
to heaters to prevent scale build-up.
4. Figure 43
domestic pipes (Combi only).
5.
Figure 43
Part number 550-142-850/0115
M -
OUNT GAS FIRED WATER BOILER
-
Minimum Maximum
4.5 130
—
Boiler Manual
Figure 44
6. Combi Boiler: Domestic water inlet connection showing filter
Pipe in a "union" fitting below this adapter to service
this filter screen.
tic heating water ) must be used to regulate the water temperature
leaving the plate heat exchanger. NOTE: the valve must be set
and remove the dial.
during cold water draws. Failure to prevent the backflow will
cause water to flow through the flow switch, activating it, when
the cold water draw has ended and the water pressure increases.
caused by dirty or hard water, which is a maintenance require-
ment.
the plate DHW heat exchanger and other components in the do-
mestic hot water system, water with hardness higher than 50 ppm
Thermoflo, and suitable steps must be taken to avoid it.
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