Accessing Functions And Subfunctions - Carrier 48FP Controls Operation And Troubleshooting

OPERATION
To access a function, press the subfunction number and the func-
tion name key. The display will show the subfunction group.
To move to the other elements, scroll up or down using the arrow
keys.
When the last element in a subfunction has been displayed, the
subfunction group name will be repeated.
To move to the next subfunction, it is not necessary to use the sub-
function number; pressing the function name key will advance the
display through all subfunctions within a function and then back to
the first.
To move to another function, either press the function name key for
the desired function (display will show the first subfunction)
or
Access a particular subfunction by using the subfunction number
and the function name key.
ACTION
LOG ON
Enter Password
LOG OFF
Confirm
Table 4 — Accessing Functions and Subfunctions
KEYPAD ENTRY
Table 5 — Mode Numbers and Names (
MODE NUMBER
21
Supply-Air Temperature Reset (VAV Only)
22
Demand Limit
23
Unoccupied Heating
24
Unoccupied Cooling
25
Standby
26
Optimal Start
27
Unoccupied
28
Indoor-Air Quality Purge
29
Optimal Stop
30
Occupied Heating
31
Occupied Cooling
32 Occupied Fan Only
33
Nighttime Free Cooling
34
Pressurization
35
Evacuation
36 Smoke Purge
37
Fire Shutdown
38 Timed Override
39
Digital Air Volume Control
40 Quick Test
41
High Humidity Override
42* Indoor Air Quality/Outdoor Air Control*
*Sizes 088 and 104 only.
NOTE: Optimal start will initiate both mode 26 (optimal start) and mode 30 (occu-
pied heating).
Table 6 — Logging On and Off to Service Function
KEYPAD ENTRY
ENTER
ENTER
DISPLAY
STAGES
COOL X
CPC X
HEAT X
HPC X
SMZ X
STAGES
SETPOINT
TEMPS
PRESSURE
INPUTS
ANLGOUT
OUTPUTS
STANDBY
ALRMHST
MTN/HIS
MODE NAME
DISPLAY
Enter password followed by
LOG ON
LOGGEDON Logged on okay
Press
LOG OFF
ENTER
LOGD OFF Logged off okay
11
DESCRIPTION
Current stages
Cooling stages
Cooling percent capacity
Heating stages
Heating percent capacity
SUM/Z ratio
Current stages
Current operating set point
System temperatures
System pressures
System inputs
Analog outputs
Discrete outputs
Standby/run mode
Alarm history
Maintenance history
)
DESCRIPTION
ENTER
to log off