mars 7602-457 Communicating Programmable Thermostat Instruction Manual
Installation Manual - 7602-457 Communicating, Programmable Thermostat
VARIABLE SPD INTERNAL
PUMP CONFIGURATION
LOOP OPTION
SINGLE
FIXED
PUMP CONTROL
HEATING STAGE 1
COOLING STAGE 2
60%
75%
COOLING STAGE 1
COOLING STAGE 2
50%
70%
Or
PREVIOUS
SELECT
3.5
VALVE CONFIGURATION
Configure temperature differentials at the thermostat for
vFlow™ units with a motorized modulating valve.
Adjust the Valve Configuration settings using the up/down
arrow buttons. Press the center button to select each item.
•
Heating Delta T (default stored in control) –
valid range: 4 to 12ºF (in 1ºF increments)
Cooling Delta T (default stored in control) –
valid range: 9 to 20ºF (in 1ºF increments)
Two
connections
on DXM2
•
board to allow
for multi-unit
installation
NOTE 1: Minimum and Maximum degree values are shown
only when the control is configured with the appropriate
values.
NOTE 2: Refer to section 3.6.3 for multi-unit configuration
instructions.
MODULATING VALVE
CONFIGURATION
OFF POSITION
0.0
3.6.1 MULTI-UNIT AIRFLOW SELECTION
VALVE CONTROL DELTA T
In section 3.1, when an installer selects “Airfl ow
Selection” from the System Confi guration menu, the
installer may choose the unit to confi gure by the last 4
digits of its serial number from the following screen.
HEATING DELTA T
COOLING DELTA T
7 F
10 F
MAXIMUM HEAT LWT
MINIMUM COOL LWT
80 F
40 F
AIRFLOW SELECTION
PREVIOUS
SELECT
TT026
TT026
TT038
S N - - - - - 1 2 3 4
S N - - - - - 5 6 7 8
S N - - - - - 9 0 1 2
For certain commercial multi-unit applications, the modulating
valve can be kept slightly open by choosing an off position
value between 3.3-4.0.
NOTE: Off position 0.0 means that the value is fully closed
when the unit is not operating.
PREVIOUS
SELECT
3.6
MULTI-UNIT CONFIGURATION
If multiple units are connected to one ATC thermostat upon
unit start-up, the thermostat will automatically register the
serial numbers of all units connected to it.
NOTE: Multiple units may be connected directly to the ATC
thermostat or connected to one another in series, as shown
by the figure below.
9
| General | Details |
|---|---|
| Name | mars 7602-457 Communicating Programmable Thermostat Instruction Manual |
| Make | MARS |
| Language | English |
| Filetype | PDF (Download) |
| File size | 0.49 MB |
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