Laars OMNITHERM ONH1250, Инструкции по сборке, установке и эксплуатации

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Table 13.
Recovery Data
Recovery
Data
40°F 50°F 60°F 70°F 80°F 90°F 100°F
gph gph gph gph gph gph gph
1250 3188 2550 2125 1821 1594 1417 1275
1500 3780 3024 2520 2160 1890 1680 1512
1750 4463 3570 2975 2550 2231 1983 1785
2000 5160 4128 3440 2948 2580 2293 2064
2500 6450 5160 4300 3686 3225 2867 2580
22°C 28°C 33°C 39°C 44°C 50°C 56°C
L/h L/h L/h L/h L/h L/h L/h
1250 12049 9639 8033 6885 6024 5355 4820
1500 14288 11431 9526 8165 7144 6350 5715
1750 16868 13495 11246 9639 8434 7497 6747
2000 19504 15603 13003 11145 9752 8668 7802
2500 24380 19504 16253 13931 12190 10836 9752
Temperature Rise
Temperature Rise
Model
Model
4.D
Water Flow Recovery Data
SECTION 5
Piping
5.A Boiler Water Piping
5.A.1 Boiler Water Connections
NOTE: This unit must be installed in a closed pressure
system with a minimum of 12 psi (82.7 kPa) static
pressure at the boiler.
The water piping should be supported by suitable
hangers or floor stands. Do not support the piping with
this unit. The hangers used should allow for expansion
and contraction of pipe. Rigid hangers may transmit
noise through the system resulting from the 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 all hot water pipes.
Suggested piping diagrams are shown in Figure 4
through Figure 7. These diagrams are meant only as
guides. Components required by local codes must be
properly installed.
Pipe the discharge of the relief valve (full size) to a drain
or in a manner to prevent injury in the event of pressure
relief. Install an air purger, air vent, expansion tank,
hydronic flow check valve in the system supply loop, and
any other devices required by local codes. The minimum
fill pressure must be 12 psig (82.7 kPa). Install shutoff
valves where required by code.
5.A.2 Cold Water Make-Up
1. Connect the cold water supply to the inlet
connection of an automatic fill valve.
2. Install a suitable back flow preventer between the
automatic fill valve and the cold water supply.
3. Install shut off valves where required.
In some installations, a hot water heating boiler is
connected to heating coils located in an air handling
unit where the coils may be exposed to refrigerated air
circulation. In these cases, the boiler piping system must
be equipped with flow control valves or other automatic
means to prevent gravity circulation of the boiler water
during the cooling cycle.
A boiler installed above radiation level, or as required by
the authority having jurisdiction, must be provided with a
low water cutoff device either as a part of the boiler or at
the time of boiler installation.
LAARS Heating Systems