Famco Danfoss Maneurop MT, Руководство пользователя

Страница: 52 / 294

12
Single phase electrical
characteristics
Nominal capacitor values
and relays
* PSC: Permanent Split Capacitor
CSR: Capacitor Start Run
(1) Run capacitors: 440 volts
(2) Start capacitors: 330 Volts
PSC wiring
CSR wiring
PSC wiring may be used for refrigerant
circuits with capillary tubes or
expansion valves with bleed ports.
Pressure equalisation must be ensured before start-up because of the low
starting torque characteristics of this
system.
CSR wiring provides additional motor
torque at start-up, by the use of a start
capacitor in combination with the run
capacitor. This system can be used
for refrigerant circuits with capillary
tubes or expansion valves. The start
capacitor is only connected during the
starting operation, a potential relay
is used to disconnect it after the start
sequence.
Some applications with high dif-
ferential pressure can require a very high starting torque. For such cases
the CSR starting kit can be converted
to a very high starting torque kit by
an additional start capcitor of 100 μF
parallel to the start capacitor of the
CSR kit. This confi guration can also
be used to reduce erratic starting at
unfavourable conditions such as very
low ambient temperature or weak
voltage.
ELECTRICAL CONNECTIONS AND WIRING
Three phase electrical
characteristics
Note : the single phase compressor motors are
internally protected by a temperature / current
sensing bimetallic protector, which senses the
main and start winding currents, and also the
winding temperature. Once the protector has
tripped, it may take up to two to four hours to
reset and restart the compressor.
Check that power supply corresponds to
compressor characteristics (refer to compressor
nameplate).
Models
Very high starting torque confi guration
Run capacitors (μF) Start Capacitors (μF) Start relay
MPZ038-048-054 40 100 + 100 RVA6AMKL
50 Hz / 60 Hz PSC/CSR* CSR only
Models
Run
capacitors (1)
Start
capacitors (2)
Start
relay
(A) μF (B) μF
MPZ038 40 100
RVA-6AMKL
MPZ048 40 100
MPZ054 40 100
MPZ061 45 100
MPZ068 45 100
LRA - Locked Rotor
Current (A)
MCC - Maximum
Continuous Current (A)
Winding resistance ( Ω )
( ± 7 % at 20° C)
Motor Code 1 5 1 5 1 5
Winding run start run start
MPZ038 70.5 56 16.7 14 0.63 2.13 0.75 2.54
MPZ048 70.5 56 17.1 17 0.63 2.13 0.75 2.54
MPZ054 70.5 56 24.6 19 0.63 2.13 0.75 2.54
MPZ061 87.5 61 30 26 0.56 1.73 0.69 1.95
MPZ068 87.5 61 32.2 25.5 0.56 1.73 0.69 1.95
LRA - Locked Rotor
Current (A)
MCC Maximum Continuous
Current (A)
Winding resistance (Ω)
( ± 7 % at 20° C)
Motor Code 3 4 3 4 3 4
MPZ038 71.6 29.2 11.5 6.3 1.15 5.6
MPZ048 71.6 29.2 12.2 6.0 1.15 5.6
MPZ054 71.6 29.2 12.5 6.4 1.15 5.6
MPZ061 95 38.1 19 8.5 0.9 4.3
MPZ068 95 38.1 19.6 9.0 0.9 4.3