Johnson Controls TEC2216-4, Installation Instructions Manual

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TEC22x6(H)-4 and TEC22x6H-4+PIR Series L
ON
W
ORKS
® Network Thermostat Controllers with
Dehumidification Capability, Fan Control, and Occupancy Sensing Capability Installation Instructions
23
Table 7: Display Messages
Display Function
Service Indicates that there is a service alarm in accordance with the programmable Binary Input (BI2).
Filter Indicates that the filter(s) is dirty in accordance with the programmable Binary Input (BI2).
Window Indicates that an outside window or door is open and has cancelled the thermostat heating or
cooling action in accordance with the programmable Binary Input (BI1).
Table 8: Troubleshooting Details
Symptom Cause Solution(s)
No display on the
thermostat Absent or incorrect
supply voltage 1. Check power supply voltage between RC and C to be from 19 to 30 VAC
2. Check for tripped fuse or circuit breaker
Overloaded power
transformer Verify that the transformer used is powerful enough (enough VAs) to supply all
controlled devices including the thermostat
Keyboard menu
does not access all
functions Keyboard locked Change configuration parameter nviRemLockout to value 0 to access all
levels of the menu.
Temperature
setpoints revert to
original value after
a certain time Temporary setpoint
active for a period of
time set by
parameter TOccTime To do a permanent change to the setpoints you must enter the Set type menu
and change it from Temporar to Permnent , then modify the setpoints to the
desired temperature.
Thermostat does
not call for heating Wrong mode
selected Select heating mode
Thermostat in
Unoccupied mode Select Override to force the thermostat Occupied heating setpoint
Heating setpoint is
satisfied Raise the Heating setpoint
Thermostat does
not call for cooling Wrong mode
selected Select cooling mode
Thermostat in
Unoccupied mode Select Override to force the thermostat Occupied cooling setpoint
Cooling setpoint is
satisfied Lower the cooling setpoint
Digital display
shows missing
digits or erratic
segments Defective display Replace thermostat
Reheat does not
operate Wrong mode
selected From the SeqOpera menu, set the value to 2, 3 or 5.
Heating or cooling
does not function
properly Wrong reversing
valve configuration
Note: TEC2246-4,
TEC2246H-4,
TEC2246H-4+PIR,
TEC2256-4,
TEC2256H-4, and
TEC2256H-4+PIR
only
From the Rev Valve setting select either:
1. DA (Direct Acting) 0 to 100% = 0 to 10 VDC
or
2. RA (Reverse Acting) 0 to 100% = 10 to 0 VDC