Laars MagnaTherm MGH1600, Инструкции по установке и эксплуатации для

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LAARS Heating Systems
Page 30
NOTE: This drawing shows suggested
piping configuration and
valving. Check with local codes
and ordinances for additional
requirements.
7.B Suggested Piping Schematics
Figure 14 through Figure 16 show suggested piping
configurations for water heaters. These diagrams
are only meant as guides. All components or piping
required by local code must be installed.
7.C Piping Requirements
The water piping should be supported by suitable
hangers and floor stands. Do not support the piping
with this appliance. The hangers used should allow
for expansion and contraction of copper pipe.
Rigid hangers may transmit noise through the
system resulting from piping sliding in the hangers.
We recommend that padding be used when
rigid hangers are installed. Maintain 1” (2.5 cm)
clearance to combustibles for hot water pipes.
Pipe the discharge of the relief valve (full size) to the
drain or in a manner to prevent injury in the event of
pressure relief. Install a diaphragm-type expansion
SECTION 7 Water Connections
7.A Water Quality
Water heaters must be installed in water conditions
of 15 gpg hardness or less, with a pH range of 6.5
to 9.5 pH. Values outside of this range may reduce
the life expectancy of the product. Operating the in
water with higher hardness levels will cause heat
exchanger fouling, erosion, or corrosion, leading to
premature component failure, reduced efficiency,
heat exchanger failure or system failure. Failure
of this type will not be warranted. If the water in
use exceeds the conditions recommended, water
softeners or other devices should be installed to
improve water quality.
Figure 14. DHW Piping - One Heater, One Vertical Tank
NOTES:
1. Locate DHW sensor or remote aquastat well
in lower 1/3 of tank.
2. Back flow preventer may be required - check local codes.
3. Thermal expansion tank may be required - check local codes.
4.
Caution:
Pump sizing must be based upon water hardness at job site.
5. If the tank does not have a tapping for the cold water supply, the supply may be run
to the pipe between the tank and boiler inlet.
Pump
TPRV
Supply
1
Building
return
Expansion
tank
Cold
water
supply
3
2