Honeywell THR872CUK Manuale Utente

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1: Ot

Minimum boiler on time

1 minute ** 
Options: 1 to 5 minutes  
See page 31 for important information

2: Cr

Cycles per hour (CPH)

6 cycles per hour ** 
Options: 3, 6, 9 or 12  
See page 31 for important information

4: HC

Heating/Cooling options

0: No central cooling system installed ** 
1: Allows switching between heating and cooling systems 
Thermostat cannot control cooling unless you select 1

5: PE

Pump exercise

0: Off ** 
1: On (turns on pump periodically to keep equipment 
    functioning properly)

7: LC

Behaviour when relay box cannot 
communicate with thermostat

0: Relay box turns off ** 
1: Relay box operates 20% on / 80% off

** Factory default setting

Enter Installer Setup (see page 27), then press 

> for access to system settings

See page 27 to change these settings. 

Always press OK after changing any setting.

Standard gas boiler 
(<30kW)

None

No change

Zone Valve

None 

No change

Oil boiler

System setting 1: Ot 
System setting 2: Cr

Set to 4 minutes 
Set to 3 CPH

Thermal actuator

System setting 2: Cr

Set to 12 CPH

Electric heating

System setting 2: Cr

Set to 12 CPH

Heat pump/air conditioner

System setting 1: Ot 
System setting 2: Cr 
System setting 4: HC

Set to 4 minutes 
Set to 3 CPH 
Set to 1

Fan coil

System setting 4: HC

Set to 1