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Ref:4277

Parameter 

Parameter No.  Factory Default Settings 

Optional Settings

Installer Parameters Table

 

AM-PM 
24hr Display

Reset Time/ 
Temp Program 
 

 

Upper Temp Limit 

Lower Temp Limit 

Temperature Offset 

Proportional 
Band Width

Reset Parameters to 
Factory Defaults 
 

Minimum boiler ON 
time

 
Cycle Rate

Pump Exercise

 

1:CL 

2:rP 

 
 

 

6:UL 

7:LL 

12:tO 

13:Pb 

19:FS 

 
 

1:Ot 

2:Cr

5:PE

Display

 

24 

 
 
 

35 

1.5 

 
 

6

0

Description

 

 

24 hr clock display format 

Time / Temp profile set 
to factory default 
 
Changes to 0 when one of the 
time/temp profiles are changed

35°C Upper Temp. Limit 

5°C Lower Temp. Limit 

No temperature offset 

Proportional band of 
1.5 degree

All settings at factory defaults 

 

Changes to 0 when one of the 
parameter is changed

1 minute minimum ON time 

6 cycles per hour (cph)

Pump exercise disabled

Display

 

12 

 
 

21 to 34 

6 to 20 

-3 to +3 

1.6 to 

3.0

 

2 to 5 

3,9,12

1

Description

 

 

12 hr – AM/PM clock 
display format

Time / Temperature are as 
programmed 
 
To restore the factory 
profile set to 1

21°C to 34°C adjustment 
in 1°C steps

6°C to 21°C adjustment 
in 1°C steps

-3°C to +3°C adjustment 
in 0.1°C steps

1.6°C to 3.0°C adjustment 
in 0.1°C steps

Settings are as modified 
above
 
To restore the factory 
profile set to 1

Selection of 2, 3, 4 or 5 
minutes minimum ON 
time

Selection of 3, 9 or 12 cph

Pump exercise enabled

Category 1 Parameters - Programmable Thermostat Settings

Category 2 Parameters - System Settings (press PROGRAM   to access this category)

Notes:

 Always remember to press the 

 button to confirm that you want to store the new Installer Set-Up setting. To 

exit the Installer Set-Up Mode press the 

AUTO

 or 

MAN

 button.

System Commissioning

To enter the diagnostic mode press the 

OFF

 button then press and hold the   button for 5 sec. The unit will enter the 

user settings mode. Next press and hold the   and     buttons together. The unit will hold the relay on for 5 minutes 
and the following information will be available on the display: model ID, date code (WW/YY) and checksum. To view this 
info press the     or   button. To exit System Commissioning press the 

AUTO

 or 

MAN

 button.

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