White Rodgers 1F85-277 Guía para resolver problemas Pagina 131
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- SOLUCIÓN DE PROBLEMAS
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WIRING DIAGRAM 4 - HVAC Equipment – Conventional
Two Stage Heating and Single Stage Cooling
Y1 FIRST STAGE COOL
G FAN RELAY
R 24VAC TRANSFORMER C
W1 FIRST STAGE HEAT RELAY
W2 SECOND STAGE HEATING RELAY
Y1
G
O
W1/B
R
W2
W3/E
WIRING DIAGRAM 5 - Single Speed Compressor
Heat Pump
.
Y COMPRESSOR RELAY
G FAN RELAY
O REVERSING VALVE COOL
B REVERSING VALVE HEAT
R 24VAC TRANSFORMER C
W2 SECOND STAGE HEAT
E EMERGENCY HEAT
Y1
G
O
W1/B
R
W2
W3/E
WIRING DIAGRAM 6 - Two Speed Compressor Heat Pump
FIRST STAGE COMPRESSOR
FAN RELAY
REVERSING VALVE COOL
REVERSING VALVE HEAT
R 24VAC TRANSFORMER C
THIRD STAGE/EMER HEAT
SECOND STAGE
COMPRESSOR
Y1
G
O
W1/B
R
W2
W3/E
TROUBLESHOOTING
The CMM-3U is a very simple control to troubleshoot, especially with
the LED indicators. The only other device needed is a simple Volt/
Ohm meter. Almost all problems can be traced to an external com-
ponent or wiring to the CMM-3U. The following procedures can help
isolate the problem.
Zone(s) Not Calling
Each zone has a Green LED next to the zone relay when it is calling
and that calling is being recognized by the CMM-3U. If a zone is
supposed to be calling and the Zone LED is not on, check for 24VAC
across the thermostat terminal C and the Y, if a Cool call, W if a Heat
Call, or G if a Fan call. If there is no voltage here at the panel the
panel is not getting the signal from the thermostat. The problem is
mis-wiring, a broken wire or a problem in the thermostat. To check
the zone on the panel, place jumper from R to Y, R to W or R to G to
see that the panel is operating properly.
Zone(s) Will Not Shut Off
If a zone will not stop calling, the Zone LED should still be on. De-
pending on the call disconnect the Y, W or G wire from the terminal
strip. The zone will drop out. Check the thermostat wiring for a mis-
wiring or short that keeps the zone calling.
Damper Motor Checkout
To checkout the dampers, the panel provides 24VAC to the COM
and OPEN when the damper is to be open and 24VAC to COM and
CLOSE when the damper is to be CLOSED. When any zone is
calling and its Green LED is ON, there is 24VAC across COM and
OPEN. The only time a damper will close is when anther zone is
calling and its zone is not calling. In this instance there will be 24VAC
across COM and CLOSE.
ZONE PANEL
CMM-3U
CMM-3UK
www.white-rodgers.com
254
TECHNICAL HELP
- TECHNICAL HELPINDEX 1
- INDEXTECHNICAL HELP 2
- TYPICAL WIRING1F97-1277 3
- 1F97-1277CONFIGURATION 4
- 1F95-1280CONFIGURATION 6
- 1F95-1291CONFIGURATION 8
- Heat Pump Connections 9
- Heat Pump Systems 9
- 1F95-1277CONFIGURATION 10
- (limited temperature range) 10
- INSTALLER/CONFIGURATION MENU 10
- Remote Sensor Terminals 11
- 1F97-0671CONFIGURATION 12
- TYPICAL WIRING1F95EZ-0671 13
- 1F95EZ-0671 14
- AND CONFIGURATION 14
- TYPICAL WIRING1F95-0671 15
- AND CONFIGURATION 1F95-0671 16
- CONFIGURATION1F95-0671 17
- TYPICAL WIRING 1F95-0680 18
- AND CONFIGURATION1F95-0680 19
- AND CONFIGURATION 1F95-0680 20
- 1F80-0471/1F86-0471 21
- CONFIGURATION AND 21
- TERMINAL OUTPUTS 21
- TYPICAL WIRING DIAGRAMS 22
- 1F83-0471/1F85-0471 23
- CONFIGURATION 24
- 1F83-0422/1F85-0422 24
- * Common connection 25
- TYPICAL WIRING1F85-0477 27
- 1F85-0477 28
- CONFIGURATION1F85-0477 29
- 1F80-0224/1F86-0244 30
- 1F80-0261/1F87-0261 30
- TAPE OFF! 32
- CONFIGURATION MENU 33
- 1F82-261 / 1F89-211 35
- 1E78-151 37
- 1F72-151 38
- 1F79-111 38
- WIRING AND 41
- CONFIGURATION1E65-144 41
- 2 Wire Installation 41
- 4 Wire Installation 41
- Troubleshooting Chart 43
- To + or S1 44
- To S or S2 44
- To - or S3 44
- + Terminals 45
- - Terminals 45
- EVAPORATIVE 46
- HEATING TECH HELP INDEX 47
- MAIN VALVE RELAY 48
- TH PGTH-PG 48
- REDUNDANT PILOT/VALVE 50
- ELECTRICAL SCHEMATIC 51
- 36E WIRING 52
- INFORMATION 52
- FURNACE CONTROLS 55
- 21M51U-843 WIRING 55
- INTEGRATED 55
- OPTION SWITCHES 57
- HEAT MODE 57
- DIAGNOSTIC TABLE 59
- 21M51U-843 59
- 50V51-843 60
- 21V51U-843 65
- FAULT INDEX CHART 66
- 1E1D1C 1F 67
- 1I1H1G 1J 1K 67
- 50A55-843 72
- 50A62-820 75
- 50A65-843 78
- L2 must be grounded 81
- LED Condition 83
- 50D50-842 WIRING 85
- 50D50-843 WIRING 85
- SYSTEM LOCKOUT AND 88
- DIAGNOSTIC FEATURES 88
- FAULT RECALL 89
- FAULT CODE RESET 89
- SILENT OPERATOR CONTROL 90
- BOARD MOUNT 91
- LIMIT CONTROLS 91
- 3L09 OUTLINE 91
- Figure 4 92
- Figure 3 92
- Wiring Instruction Notes 94
- 16E09-101 95
- USER MENU 95
- USER MENU / OPERATION 96
- SPECIAL 97
- TRANSFORMERS AND RELAYS 99
- TECHNICAL HELP 100
- WIRING DIAGRAMS 8A04-1 101
- 8A04-1 Typical Wiring 101
- 1311 Three Wire Zone Valve 102
- 1361 Two Wire Zone Valve 103
- TECH HELP INDEX 104
- INDOOR AIR QUALITY / 104
- ZONING SYSTEMS 104
- SIZING AND OZONE 105
- WHAT AIR CLEANERS DO 106
- AND HOW THEY WORK 106
- PARTS VIEW DIAGRAM 107
- COMFORTPRO 109
- AIR CLEANERS 109
- PARTS LIST 109
- AIR CLEANER 110
- PROGRAMMING OPTIONS 110
- TYPICAL WIRING 112
- DIAGRAMS 112
- REPLACEMENT 113
- HFT2900FP 116
- ZONING SYSTEM DESIGN 117
- MINIMUM POSITION DAMPER 118
- ZONING HEAT PUMPS 118
- ZONING COMMERCIAL SYSTEMS 119
- ZONING versus MULTIPLE UNITS 119
- 78123456 121
- WIRING DIAGRAM 4 – 122
- OPERATION AND WIRING 123
- Leading Air Sensor 123
- CZ-4/CAZ-2 ADDING ZONES 124
- AND TROUBLESHOOTING 124
- INSTALLATION 125
- OPERATION 125
- ZONE PANEL 126
- LEAVING AIR SENSOR (CLAS) 127
- TROUBLESHOOTING 127
- CMM-3UKZONE PANEL 128
- CMM-3U WIRING DIAGRAM 132
- BAROMETRIC RELIEF DAMPERS 133
- LOCATION 133
- CRDS ROUND 134
- SPRING RETURN DAMPERS 134
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