Scrolling Marquee Display; Accessory Navigator™ Display - Carrier 48HC 04-28 Controls, Start-Up, Operation And Troubleshooting

CONNECTION LABEL
DDC T-STAT
ECON
CLO1/COMP1
CLO2/COMP2
CIRCUIT 1
CIRCUIT 2
CONTRL BOARD
PMR
UNIT SHUTDOWN
R
C
NOTE: The References above for T1J1 through T1J9 are to show the
path of transformer 1 as is goes through the board and safety devices.

Scrolling Marquee Display

This device is the keypad interface used to access rooftop in-
formation, read sensor values, and test the unit. (See Fig. 37.)
The scrolling marquee display is a 4-key, 4-character, 16-seg-
ment LED (light-emitting diode) display. Eleven mode LEDs
are located on the display as well as an Alarm Status LED. See
Basic Control Usage section for further details.
Accessory Navigator™ Display
The accessory hand-held Navigator display can be used with
48/50HC units. (See Fig. 38.) The Navigator display operates
the same way as the scrolling marquee device. The Navigator
display plugs into the LEN port on either TB or the ECB board.
Table 34 — Central Terminal Board (CTB) Connections
PIN NUMBER POINT DESCRIPTION
7
6
5
4
1,2
3,4
3 Comp 1 Contactor Common
4,5
6 Comp 1 Contactor Signal
3 Comp 2 Contactor Common
4,5
6 Comp 2 Contactor Signal
7 ODF Contactor Signal
Comp 1 High Pressure
HPS
LPS
Comp 2 High Pressure
HPS
LPS
2
3
4 IGC Common/Ground
Transformer 1 Common/
5
6 IGC Call for Indoor fan
7 IGC Call for Indoor fan
8
9 Transformer 1 Power (T1J1)
Indoor Fan overload signal
10
Indoor Fan overload source
11
1
Phase Monitor Source
2
Phase Monitor Normally
3
Remote Disable Switch if
REMOTE SHUTDOWN
installed (T1J4 and T1J5)
Normally Closed Smoke
SMOKE SHUTDOWN
Detector Contact (T1J3)
Smoke Detector Controller
24V OUT
Smoke Detector Controller
C
Transformer 1 Power after
Spades
Spades
Compressor 1 Call
Compressor 2 Call
Heat Stage 1 Call
Heat Stage 2 Call
Comp 1 Call jumper
Comp 2 Call jumper
Comp 1 Jumper
Comp 2 Jumper
Switch
Comp 1 jumper
Switch
Comp 2 jumper
Heat Stage 2 Call
Heat Stage 1 Call
Ground
IGC power (T1J9)
(T1J9)
(T1J8)
Ground
(T1J6)
Closed Signal (T1J7)
SMOKE SHUTDOWN
Power (T1J2)
Common
Safety Chain (T1J9)
Ground
MODE
Run Status
Service Test
Temperature
Pressures
Setpoints
Inputs
Outputs
Configuration
Time Clock
Operating Modes
Alarms
Fig. 37 — Scrolling Marquee
83
24Vac FROM
MBB
MBB
MBB
MBB
DDC T'STAT
DDC T'STAT
CTB C
ECON
CIRCUIT 1 HPS
CTB C
ECON
CIRCUIT 2 HPS
ECON
CIRCUIT 1 LPS
CLO1/COMP1
CIRCUIT 2 LPS
CLO2/COMP2
DDC T'STAT Gas Valve or PL3
DDC T'STAT
CTB C
TRAN1 Common
IGC IFO
CONTL BOARD
CTB R
TRAN1 24Vac UNIT SHUTDOWN
Fan overload
PMR
CTB C
UNIT SHUTDOWN
PMR Device
Smoke Detector REMOTE SHUTDOWN
CONTL BOARD
CTB C
CONTL BOARD
CONTL BOARD
Alarm Status
ESCAPE ENTER
24Vac TO
ECON
ECON
CONTL BOARD
CONTL BOARD
CLO1/COMP1
CLO2/COMP2
C1 - Coil
CIRCUIT 1 LPS
C1 - Coil
C1 - Coil
CIRCUIT 2 LPS
C1 - Coil
OFC1 - Coil
CLO1/COMP1
CIRCUIT 1 HPS
CLO2/COMP2
CIRCUIT 2 HPS
IGC-W or PL3
IGC C
CTB C
CONTL BOARD
MBB
IGC R
CTB R
Fan overload
PMR Device
PMR Device
CONTL BOARD
PMR
Smoke Detector
Smoke Detector