42
The illustration is an example. Check with the actual Combi Boiler about the position of piping, and form.
8.2 Water Treatment
If this Combi Boiler will be installed in a location where the hardness of the supply water is high, scale Build-up
may cause damage to the Plate Heat Exchanger.
Perform suggested treatment and maintenance measures to be taken based on the water hardness level
according to the below table.
Type of Water
Hardness Level Treatment Device*
1
Flush Frequency*
2
Soft
0-1 gpg
(0-17 mg/L)
None
None
Slightly Hard
1-3 gpg
(17-51 mg/L)
Moderately Hard
3-7 gpg
(51-120 mg/L)
Scale Inhibitor*
3
or
Water Softener
Once a Year*
4
Hard
7-10 gpg
(120-171 mg/L)
Very Hard
10-12 gpg
(171-200 mg/L)
Extremely Hard
> 12 gpg
(> 200 mg/L)
Treatment Guidelines
*
1
When selecting a treatment device,
you must consult with the device’s
spec sheet and installation manual for
guidelines and limitations.
Not all water supplies are compatible.
A water test may be required.
*
2
Install Service Valve Kit with Pressure
Relief Valve to allow for flushing.
*
3
See the page 6 for more detail
information about Scale Inhibitor.
*
4
Flushing is required if a water
treatment device is not installed.
NOTE
Damage to the Combi Boiler as a result of the items below is not covered by the Pavilion Limited
Warranty.
• Water in excess of 12 gpg (200 mg/L) of hardness
• Poor water quality (See the Water Quality List on page 14).
Water treatment device
• The water must be treated with either the a Scale Inhibitor* or a water softener.
* Scale Inhibitor: See the page 6 for more detail information.
• Water softeners may be regulated by the local water jurisdiction, consult with the manufacturer for code,
sizing, and installation guidelines.
The below diagram is for reference only. For more information about Scale Inhibitor, contact Pavilion
Customer Center at https://www.peerlessboilers.com/ or 1-855-443-8468.
Water Treatment System
City Water Supply
Pressure Relief Valve
Hot Water to
Fixtures
Shutoff Valve
Shutoff Valve
Drain
Sediment Filter
Water Treatment Device
Shutoff Valve
To Auto Feeder
To DHW Cold
Water Supply
Cold supply to Combi Boiler
Backflow Preventer
DHW Outlet
Cold Inlet
Pressure Reducing Valve
Connecting the DHW pipe
Summary of Contents for GHQ-C3201WX-FF PB US
Page 9: ...9 Memo About the Combi Boiler ...
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