Carrier 42AM ATEX Installation, Operation And Maintenance Instructions page 21

4 - INSTALLATION & CONNECTION
Tightening torque less than 3.5daN.m
Warranty not applicable
Not supplied by CARRIER
Welding: use a filler metal suited to the
manifold material.
Place a damp cloth on the manifold when
welding to protect the rubber cover
Condensate draining connection
(only on reversible models)
2nd gasket
1st gasket
M5 CBLX screw
Hydraulic recommendations
The design of a hydraulic network is crucial to the correct operation of the system. Drain valves should therefore be placed at the
appropriate points and in sufficient number. In addition, strainers should be fitted, as well as drains at circuit high points, balancing
tees on each coil and, if necessary, discharge valves.
Filtration
An efficient filtration system (recommended efficiency of 0.5 mm) should be fitted on the supply water and return water lines.
Flushing
The system must be flushed completely and filled with treated water to prevent the build-up of scale or sludge in the circuit. When
flushing the system, open the valve on the unit to prevent any sludge or impurities from entering the coil:.
Filling
Drain the coils during commissioning.
Number of heating rows
Number of cooling rows
Pipes
Fins
Coil capacity (L)
Connection diameter
Connection type
Maximum allowable pressure
Test pressure
Max T°
Number of heating rows
Pipes
Fins
Coil capacity (L)
connection Ø (mm)
Connection type
Maximum allowable pressure
Test pressure
Max T
Number of heating rows
Pipes
Fins
Coil capacity (L)
connection Ø (mm)
Connection type
Maximum allowable pressure
Test pressure
Max T°
Upper groove
Lower groove
drain pipe (Ø32mm)
35 40
1 2 3 1 2 3
Copper Ø 9.52 mm
Embossed aluminium – Pitch 2.1 mm – Thickness 10/100 mm
0,68 1,18 1,66 0,96 1,59 2,28 1,38 2,27 3,22 2,18 3,38 4,55
3/4"
Threaded unions 243 GCU F/M
16 bars
24 bars
110°C
1 3 1 3
316 L stainless steel Ø 16 mm
Embossed aluminium – Pitch 2.5 mm – Thickness 28.5/100 mm
1,05 3,8 1,69 5,4
33,7 33,7 42,4 42,4
316L stainless steel tube for welding
16 bars
24 bars
200°C
1 1
316 L stainless steel Ø 16 mm
Embossed aluminium – Pitch 2.5 mm – Thickness 28.5/100 mm
1,76 2,02
26,9 33,7
Smooth 316L steel or stainless steel tube for welding
16 bars
24 bars
200°C
Condensate
45 50
1 2 3 1 2 3
3
1" 1"1/4
1 3
4,64 8,7
48,3 42,4
1
3,36
48,3
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