Tightening Torques For The Main Electrical Connections; Tightening Torques For The Main Bolts And Screws; Condenser Coil - Carrier AquaForce PUREtec 30XAV-ZE 401 Installation, Operation And Maintenance Instructions

To reduce waste, the refrigerant and the oil must be
transferred in accordance with applicable regulations,
using methods that limit refrigerant leaks and pressure
drops and with materials that are suitable for the products.
Any leak detected must be repaired immediately.
The compressor oil that is recovered during maintenance
contains refrigerant and must be treated accordingly.
The refrigerant under pressure must not be vented to
atmosphere.
If a refrigerant circuit is opened, plug all openings if the
operation takes up to one day, or charge the circuit with
oxygen free nitrogen.
11.4 - Tightening torques for the main electrical
connections
11.4.1 - tightening torques for the main electrical
connections
component
customer connections
M10 screw-nut on phases
nut on ground terminals (M12)
compressor connections in the control box
M10 screw-nut on disconnect switch
downstream bars
M8 hexagon socket head cap
M10 hexagon socket head cap
Nut on ground terminal (M10)
Circuit breaker terminal screw 3RV2*1*
circuit breaker terminal screw 3rV2*2*
connections in fan controllers
Screw in power supply terminals (line)
screw in motor terminals
Ground screw
connections on compressor
M12 nuts on phases
M12 screw on ground
compressor variable speed drive
6 M10 nuts
2 M10 or M8 nuts
9 M8 nuts (with fuses and busbars)
ATTENTION: The tightening of the connections at the
compressor terminals requires special precautions. Please
refer to the chapter below.
designation in the Value
unit (nm)
L1 /L2 /L3 30
PE 70
30
15-20
25-30
5
QF_ /QM_ 0.8-1.2
QF_ /QM_ 2.0-2.5
1.8
1.8
3
25
EC_ 25
R/S/T U/V/W 19
GND 19
see picture 9.6
9 M8 nuts
11.4.2 - Connection precautions for the compressor power
terminals
These precautions must be applied during an intervention
that requires the removal of the power conductors connected
to the compressor supply terminals.
1. Application torque for tightening the clamp
2. Avoid contact between clamping nuts
3. Clamping nut husk
4. Pod flat
5. Against nut
6. Clamping nut terminal
7. Insulator
The tightening nut of terminal (6) supporting the isolator (7)
must never be loosened, as ist ensures terminal tightness
and compressor leak tightness.
When securing the cable lug (4), apply the required torque
between the clamping nut (3) and the backing nut (5). During
this procedure a counter-torque must be applied to the
backing nut (5). The backing nut (5) must not be in contact
with the terminal securing nut (6).

11.5 - Tightening torques for the main bolts and screws

screw Type Utilisation
Tapping screws Condensing module, housing, supports
D = 4.8
H M8 screw Condensing module, fan blade
M10 Taptite Condensing module, frame, structure, control box
fixing, compressor fixing, oil separators fixing
M6 Taptite Mounting pipes, enclosure
M8 H screw MCHE coil nut + studs
M6 H screw Piping collar
M10 H screw Oil separator fixing
M10 H screw Compressor fixing (Nylstop nut)
M8 H screw Filter drier cover
M12 H screw Economiser port flange
M16 H screw Oil separator flange nut +stud (TS/TT/TU)
M16 H screw Suction flange TS/TT with gasket
M16 H screw Heat exchanger water boxes
M20 / M16 H Suction flange TU / TS O-ring
screw
3/8 Nut ORFS Oil line
3/8 Nut ORFS Oil line
M12/M16 Hex nut Victaulic collar 4'' (M12 nut) and 5'' (M16 nut) on
suction line
M16 Hex nut Victaulic collar 6'' (M16 nut) on suction

11.6 - condenser coil

We recommend, that coils are inspected regularly to check
the degree of fouling. This depends on the environment
where the unit is installed, and will be worse in urban and
industrial installations and near trees that shed their leaves.
Value
(nm)
4.2
18
30
7
14
10
7
23
35
40
190
190
190
130
65
26
65
110
37