2
Accessory Control Components . . . . . . . . . . . . . . 149
SERVICE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 151
Service Access . . . . . . . . . . . . . . . . . . . . . . . . . . . . 151
Adjustments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 154
Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 156
Lubrication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 157
Refrigerant Feed Components . . . . . . . . . . . . . . . . 157
Thermostatic Expansion Valve (TXV) . . . . . . . . . . 157
Refrigeration Circuits . . . . . . . . . . . . . . . . . . . . . . . 157
Gas System Adjustment (48P Only) . . . . . . . . . . . 177
Moisture/Liquid Indicator . . . . . . . . . . . . . . . . . . . . 178
Filter Drier . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 178
Liquid Line Service Valves . . . . . . . . . . . . . . . . . . . 178
Protective Devices . . . . . . . . . . . . . . . . . . . . . . . . . . 178
Temperature Relief Devices . . . . . . . . . . . . . . . . . . 179
Control Circuit, 115 V . . . . . . . . . . . . . . . . . . . . . . . 179
Control Circuit, 24 V . . . . . . . . . . . . . . . . . . . . . . . . 179
Gas Heat (48P Only) . . . . . . . . . . . . . . . . . . . . . . . . 179
Compressor Removal . . . . . . . . . . . . . . . . . . . . . . . 179
Compressor Replacement . . . . . . . . . . . . . . . . . . . 179
APPENDIX A — LOCAL DISPLAY TABLES . . . . . . 180
APPENDIX B — CCN TABLES . . . . . . . . . . . . . . . . 193
APPENDIX C — UNIT STAGING TABLES . . . . . . . 214
APPENDIX D — VFD INFORMATION . . . . . . . . . . . 216
APPENDIX E — MODE SELECTION PROCESS . . 226
APPENDIX F — UPC OPEN CONTROLLER . . . . . . 228
APPENDIX G — OPTIONAL MOTORMASTER® V
CONTROL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 237
INDEX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 244
CONFIGURATION LOG . . . . . . . . . . . . . . . . . . . . . CL-1
UNIT START-UP CHECKLIST . . . . . . . . . . . . . . . . CL-8
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, re-
pair, or service air-conditioning equipment.
Untrained personnel can perform basic maintenance functions
of cleaning coils and filters and replacing filters. All other op-
erations should be performed by trained service personnel.
When working on air-conditioning equipment, observe precau-
tions in the literature, tags and labels attached to the unit, and
other safety precautions that may apply.
Follow all safety codes, including ANSI (American National
Standards Institute) Z223.1. Wear safety glasses and work
gloves. Use quenching cloth for unbrazing operations. Have
fire extinguisher available for all brazing operations.
It is important to recognize safety information. This is the safe-
ty-alert symbol
. When you see this symbol on the unit and
in instructions or manuals, be alert to the potential for personal
injury.
Understand the signal words DANGER, WARNING, CAU-
TION, and NOTE. These words are used with the safety-alert
symbol. DANGER identifies the most serious hazards which
will
result in severe personal injury or death. WARNING signi-
fies hazards which
could
result in personal injury or death.
CAUTION is used to identify unsafe practices, which
may
re-
sult in minor personal injury or product and property damage.
NOTE is used to highlight suggestions which
will
result in en-
hanced installation, reliability, or operation.
WARNING
ELECTRICAL SHOCK, FIRE OR EXPLOSION HAZ-
ARD
Failure to follow safety warnings exactly could result in
dangerous operation, serious Injury, death or property dam-
age.
Improper servicing could result In dangerous operation, se-
rious injury, death or property damage.
• Before servicing, disconnect all electrical power to
furnace.
• When servicing controls, label all wires prior to discon-
necting. Reconnect wires correctly.
• Verify proper operation after servicing.
AVERTISSEMENT
RISQUE D'ELECTROCUTION, D'INCENDIE OU D'EX-
PLOSION
Si les consignes de sécurité ne sont pas suivies à la lettre,
cela peut entraîner la mort, de graves blessures, un
fonctionnement dangereux ou des dommages matériels.
Un entretien inadéquat peut entraîner la mort, de graves
blessures, un fonctionnement dangereux ou des dommages
materiels.
• Avant de faire l'entretien de l'appareil de chauffage, le
débrancher de l'alimentation électrique.
• Avant l'entretien des commandes, étiqueter tous les fils
avant de les déconnecter. Rebrancher correctement les
fils.
• Vérifier que l'appareil fonctionne correctement après
l'entretien.
WARNING
FIRE, EXPLOSION OR CARBON MONOXIDE POI-
SONING HAZARD
Failure to replace with proper control could result in fire,
explosion or carbon monoxide poisoning.
This appliance uses a NEGATIVE PRESSURE REGU-
LATED gas control.
Replace ONLY with the same model number or as specified
by the manufacturer.
AVERTISSEMENT
RISQUE D'INCENDIE, D'EXPLOSION OU D'INTOXI-
CATION AU MONOXYDE DE CARBONE
Le remplacement de ce dispositif par une commande non
conforme risque de provoquer un incendie, unne explosion
ou une intoxication au monoxyde de carbone.
Cet appareil utilise une commande de gaz À RÉGULA-
TION DE PRESSION NEGATIVE.
La remplacer UNIQUEMENT par un dispositif portant le
mème numéro de modèle ou conforme aux spécifications
du fabricant.
Summary of Contents for Weathermaster 48P2030-100
Page 130: ...130 Fig 19 Typical Power Schematic Sizes 040 075 Shown ...
Page 131: ...131 Fig 20 Main Base Board Input Output Connections ...
Page 132: ...132 Fig 21 RXB EXB CEM SCB Input Output Connections ...
Page 133: ...133 Fig 22 Typical Gas Heat Unit Control Wiring 48P030 100 Units Shown ...
Page 134: ...134 Fig 23 Typical Electric Heat Wiring 50P030 100 Units Shown ...
Page 135: ...135 Fig 24 Typical Power Wiring 115 V ...
Page 136: ...136 Fig 25 Typical Gas Heat Section Size 030 050 Units Shown ...
Page 138: ...138 Fig 27 Component Arrangement Size 030 035 Units ...
Page 139: ...139 Fig 28 Component Arrangement Size 040 075 Units ...
Page 140: ...140 Fig 29 Component Arrangement Size 090 100 Units ...
