RT-SVP07B-EN
141
DIAGNOSTICS Menu
Unit HI Communications
Failure
Module: RTM
Problem: The RTM has lost
communications with the
Unit mounted (local)
Human Interface (HI).
Check: Field/unit wiring
between RTM and Local HI.
A fail-safe function in the HI
will:
a. disallow any interaction
between the HI and the
RTM or any other modules.
b. render all HI keystrokes
ineffective, and
c. cause the following to be
displayed on the unit-
mounted HI display: LOCAL
HI COMMUNICATIONS
LOSS CHECK COMM LINK
WIRING BETWEEN
MODULES
(If the unit has a remote HI
option, then on the remote
HI module, this diagnostic
will be reported and
displayed as any other
automatic reset
diagnostic.)
(INFO) An automatic reset
occurs after
communication has been
restored between the RTM
and the HI. When the
failure screen is cleared,
the General display is
restored and HI interaction
with the interaction with
the RTM is again permitted.
Unoccupied
Dehumidification
Setpoint Failure
Module: RTM
Problem: The GBAS input
assigned to Unoccupied
Dehumidification Setpoint
is out of range (Humidity <
10% or Humidity > 90%).
Check: Wiring and
external devices on the
associated GBAS input.
The Active Unoccupied
Dehumidification Setpoint
reverts to the default
Unoccupied
Dehumidification
Setpoint from the Human
Interface.
(PAR) An automatic reset
occurs after the GBAS input
assigned to the Unoccupied
Dehumidification Setpoint
input returns to within
range for 10 continuous
seconds, or after a
different, valid Unoccupied
Dehumidification Setpoint
source is applied (BAS/
Network).
Unoccupied
Humidification Setpoint
Failure
Module: RTM
Problem: The GBAS input
assigned to Unoccupied
Humidification Setpoint is
out of range (Humidity <
10% or Humidity > 90%).
Check: Wiring and
external devices on the
associated GBAS input.
The Active Unoccupied
Humidification Setpoint
reverts to the default
Unoccupied Humidification
Setpoint from the Human
Interface.
(PAR) An automatic reset
occurs after the GBAS input
assigned to the Occupied
Humidification Setpoint
input returns to within
range for 10 continuous
seconds, or after a
different, valid Occupied
Humidification Setpoint
source is applied (BAS/
Network).
Table 11: Diagnostics Troubleshooting Chart (continued)