McQuay Incremental PDNC Series, Установка и обслуживание данных

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Heat Section Installation
The heat section is designed to be “snapped” into the top of the
wall sleeve (see Figure 6). There are four square holes pro-
vided in the wall sleeve, two on each side, for coil attachment.
Assembly the heat section to the wall sleeve as follows:
1. Unpack the heat section and inspect for any shipping
damage. Report any damage found to the carrier.
2. Check the heat section against the plans to make certain the
coil supplied has the connections match the specifications.
3. Firmly attach the heat section to the wall sleeve by lining up
the heat section hooks with the square holes supplied in the
wall sleeve. Snap the heat section in place by exerting pres-
sure downward.
4. The valve is always connected to the supply side of the coil.
There are seven possible coil arrangements available. Each
is shown below. Select the illustration below that matches
the coil supplied and pipe it according to the illustration. In-
stall valve and other accessories including air vents, steam
traps, stop balance valves, etc., as specified by the design
engIneer.
5. For valve installed on right side of the unit, make electrical
connection to matching cap extending from the control box.
For left side valve, make electrical connection to cap mounted
to left side of chassis.
Note: When the heating medium is steam, the supply connec-
tion should be attached to the uppermost tube and the return to
the lower tube. The coil is pitched in the casing to allow drain-
age of condensate.
When the heating medium is hot water, the supply connection
should be made to the lowermost tube and the return to the
uppermost tube. Hot water coils should be “flooded” to minimize
air entrapment.
Factory
Supplied
Holes (2)
Wall Sleeve
Hydronic
Heat
Section
Figure 6.
Steam
Left-hand supply and return
Supply and Return Coil Arrangements
Right-hand supply and return
Right-hand supply, left-hand return
Left-hand supply, right-hand return
Left-hand supply and return
Right-hand supply and return
Left-hand supply, right-hand return or
Right-hand supply, left-hand return
Supply
Return
Supply
Return
Return
or
Supply
Hot Water
Return
Supply
Supply
Return
Supply
Return
Supply
Return
Return
or
Supply