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26. 01. 22. Document Number 671829
Nuaire | Western Industrial Estate | Caerphilly | CF83 1NA | nuaire.co.uk
BPS H-AT
Installation Manual
8.17 Setpoints
Most of the following are user adjustable within engineered limits:
Switch
No.
Name
Description
Range
Default
1
Enable
Software enable switch
On/Off
Off
3
Trickle Mode
When On, fans will trickle even with no enable signal
On/Off
Off
5
Wiring Verification
Factory Use Only
On/Off
Off
7
Boost
Software boost switch
On/Off
Off
10
Tachofitted
For units with tacho to digital converter. Fan fault will be ignored if fans are
stopped intentionally.
On/Off
Off
11
Fan & Heater Test
Factory Use Only
On/Off
Off
12
ForceOverheat
Factory Use Only
On/Off
Off
13
Fan Only Test
Factory Use Only
On/Off
Off
14
DamperBypass
Force HX to Bypass
On/Off
Off
15
DamperOutOfBypass
Force HX to HX
On/Off
Off
22
Force Stop on Low Temp
Stops fans upon LOWTEMPALARM
On/Off
Off
23
Summer Night Free Cool Active
Set night cooling mode as active
On/Off
Off
33
Alarm Reset
Resets alarm on change of value
On/Off
Off
49
Enable Constant Pressure
Enabled constant pressure mode
On/Off
Off
50
IO Damper Fitted
Imposes fan delay to allow dampers to open.
On/Off
Off
51
DamperRecirc
Force Recirc damper to recirc mode
On/Off
Off
52
Damper NoRecirc
Force Recirc damper out of recirc mode
On/Off
Off
Knob
No.
Name
Description
Range
Default
2
Run-on Time
Run-on timer value
0-3600 Sec
0 sec
4
SetTemp
Desired temperature setpoint
10-30 °C
22°C
5
UI4 Fun.1=CO2 2=Occ 3=FSC
Input 4 Function, 0 = None, 1 = CO2/T/D, 2 = Trend Occ, 3=FSC
0-3
0
6
Deadband
Dead-band for temp control
0-10 k
3k
7
UI5 Func.1=CO2 2=Occ 3=FSC
Input 5 Function, 0 = None, 1 = CO2/T/D, 2 = Trend Occ, 3=FSC
0-3
0
8
Supply Fan Max
Individual fan maximum speed setting
20-100%
100%
9
Supply Fan Min
Individual fan minimum speed setting. (Trickle speed)
0-100%
20%
10
Extract Fan Max
Individual fan maximum speed setting
20-100%
100%
11
Extract Fan Min
Individual fan minimum speed setting. (Trickle speed)
0-100%
20%
12
Supply Fan Boost
Supply fan boost speed
20-100%
100%
13
Extract Fan Boost
Extract fan boost speed
20-100%
100%
14
CO2 Target
The target setpoint for CO2 control
0-10000 PPM
650 PPM
15
CO2 Range Min
The lower limit CO2 value corresponding to the limit voltage
0-10000 PPM
0 PPM
16
CO2 Voltage Min
The lower limit voltage corresponding to the limit of range
0-10 v
0 v
17
CO2 Range Max
The upper limit CO2 value corresponding to the limit voltage
0-10000 PPM 2000 PPM
18
CO2 Voltage Max
The upper limit voltage corresponding to the limit of range
0-10 v
10 v
19
Alarm Delay
Alarm hold-off delay
0-300 Sec
15 sec
