Carrier 48DL Installation Manual Page 75
- Page / 84
- Table of contents
- TROUBLESHOOTING
- BOOKMARKS
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264975-BIM-B-1208
Johnson Controls Unitary Products 75
FIGURE 30 - UNIT CONTROL BOARD
UNIT CONTROL BOARD OPTION SETUP
OPTION BYTE SETUP
• Enter the Option Setup mode by pushing the OPTION
SETUP / STORE button, and holding it for at least 2 sec-
onds.
• The green status LED (Option Byte) will be turned on
and the red status LED (Heat Delay) is turned off.
• The 8, 4, 2 and 1 LEDs will then show the status of the 4
labeled options ((8) Fan Off at Heat Start, (4) Low
Ambient Lockout, (2) Free Cooling Lockout, and (1)
Lead / Lag).
• Press the UP or Down button to change the LED status
to correspond to the desired Option Setup.
• To save the current displayed value, push the OPTION
SETUP / STORE button and hold it for at least 2 sec-
onds. When the value is saved, the green LED will flash
a few times and then normal display will resume.
NOTE: While in either Setup mode, if no buttons are
pushed for 60 seconds, the3 display will revert to its
normal display, exiting the Option Setup mode.
When saving, the control board only saves the
parameters for the currently displayed mode
(Option Byte or Heat Delay).
HEAT DELAY SETUP
• Enter the Option Setup mode by pushing the OPTION
SETUP / STORE button, and holding it for at least 2 sec-
onds.
• The green status LED (Option Byte) will be turned on
and the red status LED (Heat Delay) is turned off.
• Press the COMM SETUP / SELECT button to toggle into
the Heat Delay Setup, the green LED will turn off and the
red LED for Heat Delay will turn on.
• The 8, 4, 2 and 1 LEDs will then show the status of the
Heat Delay, (See Table 81). Press the UP or Down but-
ton to change the LED status to correspond to the
desired Heat Delay Value.
• To save the current displayed value, push the OPTION
SETUP / STORE button and hold it for at least 2 sec-
onds. When the value is saved, the red LED will flash a
few times and then normal display will resume.
NOTE: While in either Setup mode, if no buttons are
pushed for 60 seconds, the display will revert to its
normal display, exiting the Option Setup mode.
When saving, the control board only saves the
parameters for the currently displayed mode
(Option Byte or Heat Delay).
Check
Alarm
History
Reset All
ASCDs for
One Cycle
Non Alarm
Condition Green
LED Flashing
Current Alarm
Flashed
Red LED
- INSTALLATION 1
- TABLE OF CONTENTS 2
- LIST OF FIGURES 3
- LIST OF TABLES 3
- LIST OF TABLES (CONT’D) 4
- SAFETY CONSIDERATIONS 5
- INSPECTION 5
- REFERENCE 6
- RENEWAL PARTS 6
- APPROVALS 6
- NOMENCLATURE 7
- LIMITATIONS 9
- LOCATION 10
- RIGGING AND HANDLING 11
- FIGURE 5 - UNIT 4 POINT LOAD 11
- TABLE 3: UNIT WEIGHTS 11
- TABLE 4: 4 POINT LOAD WEIGHT 11
- CLEARANCES 12
- TABLE 5: 6 POINT LOAD WEIGHT 12
- FIGURE 6 - UNIT 6 POINT LOAD 12
- See Detail 13
- CABINET SIZE 14
- DIMENSION 14
- “A” “B” “C” 14
- 50 3/4” 28 1/4 18 1/16 28 1/4 14
- 42” 27 3/4 12 1/16 27 1/2 14
- DUCTWORK 15
- DUCT COVERS 15
- O P T I O N A L C O I L 16
- G U A R D 16
- 3 " M i n i m u m 16
- THERMOSTAT WIRING 17
- POWER AND CONTROL WIRING 17
- POWER WIRING DETAIL 17
- TABLE 8: CONTROL WIRE SIZES 17
- U N I T C O N T R O L 18
- B O A R D 18
- 264975-BIM-B-1208 19
- TABLE 29: DL PHYSICAL DATA 30
- TABLE 30: DU PHYSICAL DATA 30
- O P T I O N A L 31
- S H O W N 31
- OPTIONS/ACCESSORIES 33
- FIRE OR EXPLOSION HAZARD 33
- ADJUSTMENTS AND INFORMATION 34
- BLOWER ROTATION 36
- BELT TENSION 36
- FIGURE 25 - BELT ADJUSTMENT 36
- AIR BALANCE 56
- CHECKING AIR QUANTITY 57
- SUPPLY AIR DRIVE ADJUSTMENT 59
- OPERATION 61
- SAFETY CONTROLS 62
- COMPRESSOR PROTECTION 63
- 50” CABINET 63
- START-UP (COOLING) 66
- START-UP (GAS HEAT) 67
- CHECKING GAS INPUT 68
- TABLE 69: GAS HEAT STAGES 68
- CHARGING THE UNIT 70
- TROUBLESHOOTING 74
- OPTION BYTE SETUP 75
- HEAT DELAY SETUP 75
- TABLE 81: HEAT DELAY 76
- Power to 77
- COOLING TROUBLESHOOTING GUIDE 79
- 5005 York Drive 84
- Norman, OK 73069 84
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