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METERING
The TEMP system thermostat has zone metering capabili-
ties. The available functions allow the TEMP system thermo-
stat to meter zone usage in 3 ways:
• usage of the heating/cooling equipment to maintain zone
temperature conditions (amount of time the zone demand
matches the System Mode).
• usage of the zone in addition to the normal occupied sched-
ule (amount of time the zone is in Unoccupied Override).
• amount of time zone demand matches system mode during
the unoccupied override.
HVAC Usage Meter —
The TEMP system thermostat
has a HVAC usage meter that can accumulate up to
32,767 minutes (about 22 days) of HVAC usage. Through
communication, the amount of time accumulated in the meter
can be accessed, recorded, and reset to zero. Once the maxi-
mum amount of time has been accumulated, the TEMP system
thermostat stops metering and a Meter Full Error occurs.
To configure the HVAC Usage Meter option, set category 7,
option 6. Use the left set point buttons to configure the option
ON or OFF. The default is OFF.
To disable the HVAC Usage Meter, set the option to OFF.
No metering occurs.
Override Usage Meter —
When the Override Usage
Meter option is set to ON, the meter will record the minutes the
zone is in unoccupied override mode. When the Override Us-
age Meter option is set to OFF, zone metering for this mode
will not occur. The override usage meter can accumulate up to
32,767 minutes (about 22 days) of override usage.
To configure the Override Usage Meter option, set category
7, option 7. Use the left set point buttons to configure the op-
tion ON or OFF. The default is OFF.
To disable the Override Usage Meter, set the option to OFF.
No metering occurs.
HVAC Override Usage Meter —
When the HVAC
Override Usage Meter option is set to ON, the meter will
record the minutes the zone demand matches the system mode
in unoccupied override mode. When the HVAC Override Us-
age Meter option is set to OFF, zone metering for this mode
will not occur. The HVAC override usage meter can accumu-
late up to 32,767 minutes (about 22 days) of HVAC override
usage.
To configure the HVAC Override Usage Meter option, set
category 7, option 8. Use the left set point buttons to configure
the option ON or OFF. The default is OFF.
To disable the HVAC Override Usage Meter, set the option
to OFF. No metering occurs.
DIAGNOSTICS
The TEMP system thermostat has diagnostic capabilities
for components, and zone and system information.
Diagnostic problems, called errors or alarms, are divided
into 3 categories: Hardware Failure (HF) errors, Storage Fail-
ure (SF) errors, and System Errors (SE). The TEMP system
Thermostat tracks the operating conditions in the zone.
Error Code Display —
An error code representing the
TEMP system SE, SF, and HF diagnostic functions can be dis-
played to indicate which error has been declared. The 2 letters
located in the bottom of the display represent the type of error.
The 3 numbers located in the top of the display identify the
specific error.
When the Error Code Display option is ON, an error code
will be displayed when the associated error occurs. Any previ-
ous error codes that occurred when the Error Code Display was
configured OFF will be displayed.
When an error is cleared, any errors remaining in the ther-
mostat will be displayed sequentially until all errors are
cleared.
When the Error Code Display option is set to OFF, no error
codes will be displayed by the TEMP system thermostat.
To configure the Error Code Display option, set category 7,
option 1. Use the left set point buttons to toggle the setting to
ON or OFF. The default is OFF.
System Errors (SE) —
System Errors are shown in
Table 3.
COMFORT TREND ERROR (SPACE TEMPERATURE
ALARM) (SE01) — A Comfort Trend error is a system error
that provides information on the ability of the system to main-
tain temperature conditions in its reference zone.
When the reference zone demand exceeds the Comfort
Trend Demand Set Point, the TEMP system thermostat begins
tracking the Temperature Trend of the zone.
Table 3 — System Errors
The TEMP system thermostat declares a Comfort Trend Er-
ror for the zone when the Temperature Trend is continuously
zero (zone temperature conditions are not improving) or posi-
tive (zone temperature conditions are becoming worse) for the
entire Comfort Trend Time Limit.
To clear a Comfort Trend Error, use the Unit Reset function.
The Unit Reset function is in category 7, option 11. The default
is OFF. Use the left set point buttons to set the option to ON.
The TEMP system thermostat will reset all errors.
By indicating when zone heating or cooling set points can-
not be satisfied, a Comfort Trend Error helps identify zone
problems.
When the system is commissioned, this information can be
used by the installing contractor to recognize zone airflow or
supply-air temperature problems in the system.
During system operation, Comfort Trend Errors can be con-
tinuously monitored for the servicing contractor by a local net-
work access device to determine when system or equipment
problems are affecting zone comfort.
ERROR
CODE
SYSTEM ERROR DESCRIPTION
ALARM
PRIORITY
LEVEL
SE01
Comfort Trend (Space Temperature)
2
SE02
HVAC Usage Meter Full
4
SE03
Override Usage Meter Full
4
SE04
HVAC Override Usage Meter Full
4
SE06
Cannot Detect Indoor Fan ON
2
SE07
Heat Mode Error
2
SE08
Cool Mode Error
2
SE09
Dirty Filter Error
4
SE10
IAQ Error
2
SE11
High/Low Temperature Limit Exceeded
2
SE12
Cannot Detect Indoor Fan OFF
2
SE13
Stuck Gas Valve
1