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50TCQD17---D24
Single Package Heat Pump/Electric Heat
Nominal 15 to 20 Tons
With Puron
(R---410A) Refrigerant
Service and Maintenance Instructions
TABLE OF CONTENTS
SAFETY CONSIDERATIONS
1
. . . . . . . . . . . . . . . . . . . .
UNIT ARRANGEMENT AND ACCESS
3
. . . . . . . . . . .
SUPPLY FAN (BLOWER) SECTION
4
. . . . . . . . . . . . . .
HEAT PUMP REFRIGERATION SYSTEM
6
. . . . . . . . .
THERMOSTATIC EXPANSION VALVE (TXV)
11
. . . .
PURON
R
(R--410A) REFRIGERANT
13
. . . . . . . . . . . . .
COOLING CHARGING CHARTS
14
. . . . . . . . . . . . . . . .
CONVENIENCE OUTLETS
18
. . . . . . . . . . . . . . . . . . . .
HEAT PUMP CONTROLS
19
. . . . . . . . . . . . . . . . . . . . . .
PROTECTIVE CONTROLS
20
. . . . . . . . . . . . . . . . . . . . .
COMMERCIAL DEFROST CONTROL
20
. . . . . . . . . . .
ELECTRIC HEATERS
23
. . . . . . . . . . . . . . . . . . . . . . . . .
SMOKE DETECTORS
26
. . . . . . . . . . . . . . . . . . . . . . . . .
PREMIERLINK
CONTROL
34
. . . . . . . . . . . . . . . . . . .
RTU--OPEN CONTROL SYSTEM
35
. . . . . . . . . . . . . . . .
SENSORY/ACCESSORY INSTALLATION
35
. . . . . . . .
ADDITIONAL RTU--OPEN INSTALLATION AND
TROUBLESHOOTING
35
. . . . . . . . . . . . . . . . . . . . . . . . .
PRE--START--UP
37
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
START--UP
37
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
START--UP, GENERAL
37
. . . . . . . . . . . . . . . . . . . . . . . .
START--UP, PREMIERLINK
39
. . . . . . . . . . . . . . . . . . .
START--UP, RTU--OPEN
39
. . . . . . . . . . . . . . . . . . . . . . . .
FASTENER TORQUE VALUES
39
. . . . . . . . . . . . . . . . .
APPENDIX I. MODEL NUMBER SIGNIFICANCE
40
.
APPENDIX II. PHYSICAL DATA
41
. . . . . . . . . . . . . . . .
APPENDIX IV. WIRING DIAGRAMS
45
. . . . . . . . . . . .
APPENDIX V. FAN PERFORMANCE
53
. . . . . . . . . . . .
APPENDIX VI. MOTORMASTER SENSOR LOCA-
TIONS
57
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
START-UP CHECKLIST
59
. . . . . . . . . . . . . . . . . . . . . . .
SAFETY CONSIDERATIONS
Installation and servicing of air-conditioning equipment
can be hazardous due to system pressure and electrical
components. Only trained and qualified service personnel
should install, repair, or service air-conditioning
equipment. Untrained personnel can perform only the
basic maintenance functions such as replacing filters.
Trained service personnel should perform all other service
and maintenance operations.
When working on air-conditioning equipment, observe
precautions in the literature, tags and labels attached to
the unit, and other safety precautions that can apply.
Follow all safety codes. Wear approved safety glasses and
leather work gloves. Use quenching cloth for unbrazing
operations. Have fire extinguishers available for all
brazing operations.
Read these instructions thoroughly and follow all
warnings or cautions attached to the unit. Consult local
building codes and National Electrical Code (NEC) for
special requirements.
Recognize safety information. This is the safety--ALERT
symbol
. When you see this symbol on the unit and in
instructions or manuals, be aware of the potential for
physical injury hazards.
Understand the signal words
DANGER
,
WARNING
, and
CAUTION
. These words are used with the safety--ALERT
symbol.
DANGER
indicates a hazardous situation which,
if not avoided,
will
result in death or severe personal
injury.
WARNING
indicates a hazardous situation which,
if not avoided,
could
result in death or personal injury.
CAUTION
indicates a hazardous situation which, if not
avoided,
could
result in minor to moderate injury or
product and property damage.
NOTICE
is used to address
practices not related to physical injury.
NOTE
is used to
highlight suggestions which
will
result in enhanced
installation, reliability, or operation.
Содержание 50TCQD17-D24
Страница 36: ...36 C10818 Fig 51 RTU OPEN Control Module 50TCQ ...
Страница 46: ...46 APPENDIX IV WIRING DIAGRAMS cont C150373 Fig 52 50TCQ D17 Power Wiring Diagram 208 230 3 60 ...
Страница 47: ...47 APPENDIX IV WIRING DIAGRAMS cont C12399 Fig 53 50TCQ D17 Power Wiring Diagram 460 3 60 575 3 60 ...
Страница 48: ...48 APPENDIX IV WIRING DIAGRAMS cont C12686 Fig 54 50TCQ D24 Power Wiring Diagram 208 230 3 60 ...
Страница 49: ...49 APPENDIX IV WIRING DIAGRAMS cont C12401 Fig 55 50TCQ D24 Power Wiring Diagram 460 3 60 575 3 60 ...
Страница 51: ...51 APPENDIX IV WIRING DIAGRAMS cont C160005 Fig 57 RTU OPEN Control Diagram ...
Страница 52: ...52 APPENDIX IV WIRING DIAGRAMS cont 50HE500891 F 50HE500751 J Fig 58 PremierLinktWiring Diagram ...