Maintenance - Carrier 50CR Installation Instructions Manual

1100 1200
5kw 0.00 0.00
7.2 kw 0.00 0.00
10 kw 0.00 0.00
15 kw 0.00 0.02
20 kw 0.02 0.03
Speedup
Pins

MAINTENANCE

To ensure continuing high performance, and to minimize the
possibility of premature equipment failure, periodic maintenance
must be performed on this equipment. This heat pump unit should
be inspected at least once each year by a qualified service person. To
troubleshoot unit, refer to Table 8, Troubleshooting Chart.
NOTE TO EQUIPMENT OWNER: Consult your local dealer
about the availability of a maintenance contract.
WARNING
!
PERSONAL INJURY AND UNIT DAMAGE HAZARD
Failure to follow this warning could result in personal injury
or death and possible unit component damage.
The ability to properly perform maintenance on this
equipment requires certain expertise, mechanical skills, tools
and equipment. If you do not possess these, do not attempt to
perform any maintenance on this equipment, other than those
procedures recommended in the Owner's Manual.
Table 6—Electric Heat Pressure Drop Table
Large Cabinet: 042- -060
1300 1400 1500 1600
0.00 0.01 0.02 0.03
0.01 0.02 0.03 0.04
0.01 0.02 0.03 0.04
0.03 0.04 0.05 0.06
0.04 0.05 0.06 0.07
Quiet
Shift
Fig. 23 - - Defrost Control
CFM
1700 1800 1900 2000
0.04 0.05 0.06 0.07
0.05 0.06 0.07 0.08
0.05 0.06 0.07 0.08
0.07 0.08 0.09 0.10
0.08 0.09 0.10 0.11
CESO130076–00
Defrost interval
DIP switches
WARNING
!
ELECTRICAL SHOCK HAZARD
Failure to follow these warnings could result in serious injury
or death:
1. Turn off electrical power to the unit before performing any
maintenance or service on this unit.
2. Use extreme caution when removing panels and parts.
3. Never place anything combustible either on or in contact
with the unit.
!
UNIT OPERATION HAZARD
Failure to follow this caution may result in equipment damage
or improper operation.
Errors made when reconnecting wires may cause improper
and dangerous operation. Label all wires prior to
disconnecting when servicing.
24
2100 2200 2300 2400
0.08 0.09 0.10 0.11
0.09 0.10 0.11 0.12
0.09 0.10 0.11 0.12
0.11 0.12 0.13 0.14
0.12 0.13 0.14 0.15
CAUTION
2500
0.12
0.13
0.13
0.15
0.16