Carrier 42AM ATEX, Installation, Operation And Maintenance Instructions

Page: 21 / 44

ENGLISH
Tightening torque less than 3.5daN.m
35 40 45 50
Warranty not applicable
LP
WATER
Number of heating rows 1 2 3 1 2 3 1 2 3 1 2 3
Number of cooling rows 3
Pipes Copper Ø 9.52 mm
Fins Embossed aluminium – Pitch 2.1 mm – Thickness 10/100 mm
Coil capacity (L) 0,68 1,18 1,66 0,96 1,59 2,28 1,38 2,27 3,22 2,18 3,38 4,55
Connection diameter 3/4" 1" 1"1/4
Connection type Threaded unions 243 GCU F/M
Maximum allowable pressure 16 bars
Test pressure 24 bars
Max T° 110°C
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
HP WATER - OIL
Number of heating rows 1 3 1 3 1 3
Pipes 316 L stainless steel Ø 16 mm
Fins Embossed aluminium – Pitch 2.5 mm – Thickness 28.5/100 mm
Coil capacity (L) 1,05 3,8 1,69 5,4 4,64 8,7
connection Ø (mm) 33,7 33,7 42,4 42,4 48,3 42,4
Connection type 316L stainless steel tube for welding
Maximum allowable pressure 16 bars
Test pressure 24 bars
Max T 200°C
HP VAPOUR
Number of heating rows 1 1 1
Pipes 316 L stainless steel Ø 16 mm
Fins Embossed aluminium – Pitch 2.5 mm – Thickness 28.5/100 mm
Coil capacity (L) 1,76 2,02 3,36
connection Ø (mm) 26,9 33,7 48,3
Connection type Smooth 316L steel or stainless steel tube for welding
Maximum allowable pressure 16 bars
Test pressure 24 bars
Max T° 200°C
Condensate draining connection
(only on reversible models)
Lower groove
1st gasket
M5 CBLX screw
Condensate
drain pipe (Ø32mm)
2nd gasket
Upper groove
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.
4 - INSTALLATION & CONNECTION
21