4.5.2 Category 2 - System Settings
Parameter
Parameter Factory Default Setting No.
Optional Setting
Category 2 Parameters – System Settings (press the 
button to access this category)
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| Display | Description | Display | Description |
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Minimum boiler | 1:Ot | 1 | 1 minute minimum | 2 to 5 | Selection of 2, 3, 4 or 5 minutes |
ON time |
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| ON time |
| minimum ON time |
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Cycle Rate | 2:Cr | 6 | 6 cycles per hour | 3,9 or | Selection of 3, 9 or 12 cph |
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| (cph) | 12 |
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Heat/Cool Change | 4:HC | 0 | Disabled | 1 | Enabled |
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Pump Exercise | 5:PE | 0 | Pump exercise | 1 | Pump exercise enabled |
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| disabled |
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System | 6:Sn | 0 | Standard operation of | 1 | Room unit configured as Synchroniser |
Synchronisation |
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| the Room Unit |
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Loss of | 7:LC | 0 | Relay Off | 1 | Relay 20% on / 80% off |
Communications |
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Instruction |
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The following Parameters are for the control of other Honeywell Wireless products such as Wireless Underfloor Heating controls and Wireless Radiator controls. For more information please contact Honeywell sales.
Room Temperature | 8:Su | 0 | HC60 control | 1,2,3 | 1 - HR80/HM80 control with own/remote |
Sensor Use |
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| or 4 | sensor (no temperature displayed) |
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| 2 - Hr80/HM80/HCE80 control with CM |
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| sensor |
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| 3 - HC60 control and HR80/HM80/ |
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| HCE80 control with own/remote sensor |
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| 4 – Hr80/HM80/HCE80 control with own/ |
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| remote sensor (temperature displayed) |
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HR80 Window- | 9:HO | 0 | Disabled | 1 | Enabled |
Open Function |
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HR80 Local | 10:HL | 1 | Enabled | 0 | Disabled |
Override |
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Maximum Flow | 11:uF | 55 | 55°C Maximum Flow | 0 to 99 | 0°C to 99°C adjustment in 1°C steps |
Setpoint |
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| Temp. |
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Minimum Flow | 12:LF | 15 | 15°C Minimum Flow | 0 to 50 | 0°C to 50°C adjustment in 1°C steps |
Setpoint |
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| Temp. |
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Mixing Value Run | 13:Ar | 150 | 150 seconds | 0 to | 0 to 240 sec. adjustment in 1sec steps |
Time |
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| 240 |
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Pump Overrun Run | 14:Pr | 15 | 15 minutes | 0 to 99 | 0 to 99 mins adjustment in 1min steps |
Time |
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Notes
1)Remember to always press the green 
button to confirm that you want to store your new Installer Set- Up setting. To exit the Installer Mode move the slider switch to the AUTO or MAN position.
2)These parameters are set centrally for the zoning system at the room thermostat configured as the system synchroniser.
3)Minimum
10 | CM900 Wireless - Programmable Room Thermostat |