TEMPERATURE CONTROL
45
4.
Press and release the up
▲ or down ▼button to change the parameter setting (skip this step if viewing only).
5.
Continually press and release the
fnc
button until the display shows the current tank temperature.
Checking or Adjusting IC902 Thermostat Level 1 Parameters
Level 1 parameter settings can be viewed or changed (except for read only informational parameters) by
performing the following procedure:
1.
Press and hold the
set
button for 5 seconds. „
CP
‟ will be displayed at which time the
set
button can be
released.
2.
Press and release the up
▲ or down ▼button to scroll the required folder.
3.
Press and release the
set
button to enter the selected folder. The first available parameter for that folder will
be displayed.
4.
Press and release the up
▲ or down ▼button to scroll the required parameter.
5.
Press and release the
set
button to enter the selected parameter.
6.
Press and release the up
▲ or down ▼button to change the parameter setting (skip this step if viewing only).
7.
Continually press and release the
fnc
button until the display shows the current tank temperature.
Note: Some level 1 parameter changes require the thermostat to be reset. Refer to
“IC902 Parameters”
on page
43
for more information.
Locking the IC902 Thermostat
The thermostat can be locked to prevent tampering of the thermostats parameters. There are two types of locks.
The thermostat can be locked to prevent any changes to system status parameters only
(set point „SEt‟ and
tank sensor offset calibration „CA1‟). System status parameters can still be viewed and level 1 parameters can
be accessed and changed.
The thermostat can be locked to prevent access to level 1 parameters only. System status parameters (set
point „SEt‟ and tank sensor offset calibration „CA1‟) can still be viewed and changed. A password entry is
required to be set when first locking the thermostat and the thermostat is unlocked by entering the same code
each time level 1 parameter access is required.
Note: Both locks may be activated to prevent tampering with all parameters. In this case only system status
parameters can be viewed.
IC902 Locking & Unlocking Procedure
– System Status Parameters
To lock:
Change „LOC‟ parameter to „y‟.
To unlock:
Change „LOC‟ parameter to „n‟.
Note:
To change „LOC‟ parameter, refer to
“Checking or Adjusting IC902 Level 1 Parameters”
on page
45
.
IC902 Locking & Unlocking Procedure
– Level 1 Parameters
To lock:
Change „PA1‟ parameter to any value from „1‟ to „250‟. This value will become the unlocking code. Note: 0
= no lock.
To change „LOC‟ parameter, refer to
“Checking or Adjusting IC902 Level 1 Parameters”
on page
45.
To unlock:
When trying to access level 1 parameters „PA1‟ will be shown on the thermostats display;
1.
Press and release the
set
button, „0‟ will be displayed.
2.
Enter the access code previously set when first locking the thermostat.
3.
Press and release the
set
button. ‟CP‟ will be displayed and level 1 folders and parameters can be viewed or
changed.
Summary of Contents for B0507
Page 26: ...CONNECTIONS ELECTRICAL 26 Wiring Diagram for Typical BMS System Interface ...
Page 28: ...CONNECTIONS ELECTRICAL 28 WIRING DIAGRAMS ON OFF MODELS 1000MJ NG ...
Page 29: ...CONNECTIONS ELECTRICAL 29 ON OFF MODELS 1000MJ LPG ...
Page 30: ...CONNECTIONS ELECTRICAL 30 ON OFF MODELS 1000MJ ...
Page 31: ...CONNECTIONS ELECTRICAL 31 MODULATING MODELS 1000MJ NG DRAWING No 96159611B ...
Page 32: ...CONNECTIONS ELECTRICAL 32 MODULATING MODELS 1000MJ LPG DRAWING No 96159610C ...
Page 33: ...CONNECTIONS ELECTRICAL 33 MODULATING MODELS 1000MJ DRAWING No 96159613B ...
