User Guide

TStatSpec
TM
41
by control logic and can be commanded by TStatSpec™. This
is also referred to as Controller Diagnostic mode in
TStatSpec™.
CAUTION
Equipment Damage Possible.
May cause short-cycling of compressors, or cause
damage to other heating or cooling equipment.
You must take appropriate and recommended
precautions when initiating the Test Mode. This
mode directly drives controller outputs to the
manually-entered states.
Procedure:
1. Click Controller Diagnostics in the workspace or
select Controller Diagnostics from the Controller
menu.
The Controller Diagnostics screen opens.
Fig. 39. Controller Diagnostics
The T7350 diagnostic screen displays the Outputs section
where outputs can be commanded, current sensor values to
enable the user to watch the effect of the outputs on the
various values, and the current mode the T7350 is in.
The following is a description of each of the fields:
HEATING POSITION:
This field enables the heat modulating output value to be
commanded from TStatSpec™. The value range is from 0-
100%. This field is enabled only for T7350M, Mod & T7350H,
Mod, Com models.
COOLING POSITION:
This field enables the cool modulating output value to be
commanded from TStatSpec™. The value range is from 0-
100%. This field is enabled only for T7350M, Mod & T7350H,
Mod, Com models.
W1:
This is the first heating relay. In the T7350A, 1H1C; T7350B,
2H2C, T7350D, 3H3C, RH & T7350H, 3H3C, and Com
models (for equipment type Heat Pump) this is used as
change over valve and is labeled as W1/O/B Valve. For
equipment type Standard, this is labeled as W1-Heat Stage1
if it is configured, if not it is labeled as W1. This output can be
commanded to ON/OFF.
W2:
This is the second heating relay. In the T7350B, 2H2C;
T7350D, 3H3C, RH & T7350H, 3H3C, Com models (for
equipment type Heat Pump) this is used as first heating stage,
if it is configured and labeled as "W2-Aux Heat Stage1". For
equipment type Standard this is labeled as W2-Heat Stage2 if
configure; if it is not configured then it is labeled as W2. This
output can be commanded to ON/OFF. The models T7350M,
Mod & T7350H, Mod, and Com do not support this relay and
so it is hidden for these models.
W3:
This is the third heating relay. In the T7350D, 3H3C, RH &
T7350H, 3H3C, Com models (for equipment type Heat Pump)
this is used as second heating stage if it is configured and
labeled as "W3-Aux Heat Stage2". For equipment type
Standard, this is labeled as W3-Heat Stage3 if configured as
the third heating stage. If it is configured as the fourth cooling
stage, it is labeled as W3/Y4-Cool Stage4. If it is not
configured it is labeled as W3. This output can be
commanded to ON/OFF. The models T7350M, Mod &
T7350H, Mod, and Com do not support this relay and so it is
hidden for these models.
Y1:
This is the first cooling relay. In the T7350A, 1H1C; T7350B,
2H2C; T7350D, 3H3C, RH & T7350 (for equipment type Heat
Pump) this is labeled as Y1/Compressor Stage1. For
equipment type Standard this is labeled as Y1-Cool Stage1 if
it is configured; if it is not configured then it is labeled as Y1.
This output can be commanded to ON/OFF.
Y2:
This is the second cooling relay. In the T7350B, 2H2C;
T7350D, 3H3C, RH & T7350H, 3H3C, Com models (for
equipment type Heat Pump) this is labeled as Y2/
Compressor Stage2. For equipment type Standard, this is
labeled as Y2-Cool Stage2 if it is configured; if it is not
configured then it is labeled as Y2. This output can be
commanded to ON/OFF. The models T7350M, Mod &
T7350H, Mod, and Com do not support this relay and so this
is hidden for these models.
Y3:
This is the third cooling relay. In the T7350D, 3H3C, RH &
T7350H, 3H3C, Com models (for equipment type Heat Pump)
this is labeled as Y2/Compressor Stage3. For equipment
type Standard, this is labeled as Y3-Cool Stage3 if it is
configured; if it is not configured then it is labeled as Y3. This
output can be commanded to ON/OFF. The models T7350M,
Mod & T7350H, Mod, and Com do not support this relay and
so this is hidden for these models.
AUX DO:
This commands the auxiliary relay status to ON/OFF. This is
the auxiliary relay. Auxiliary relay can be configured for Time
of Day output, economizer output or as dehumid output and is
labeled as Aux-TOD, Aux-Econ and Aux-Dehumid
respectively. For models T7350A, 1H1C ; T7350B, 2H2C it
can be used as an additional heating/cooling relay. In this
case, it is labeled accordingly. For T7350M, Mod & T7350H,
Mod, and Com models this can be used as one of the above