IDEAL HP290 - Page 71

Section 5 - Commissioning
COMMISSIONING
71
Installation and Maintenance
5.8.9.2 For serviceman, Heating setting
To set a parameter scroll through settings, use or . Press
O to select the parameter. Then press and .to change the
parameter.
Heating mode
0.5hours
25⁰C
-15⁰C
ON
t_T4_FRESH_H
T4HMAX
T4HMIN
Heating setting
DEFAULTS
- Heating Mode:ON (ON = CH enabled, OFF = CH disabled)
- T_T4_FRESH_H: 0.5 (refresh time of outdoor curve target temp’)
- T4HMAX: change to 21 °C (minimum CH output above 21 °C)
- T4HMIN: should be changed to -20 °C (no CH below -20 °C)
dT1SH
2⁰C
RAD
5⁰C
dTSH
Zone 1 H-emission
Heating setting
RAD
Zone 1 H-emission
DEFAULTS
- dT1SH: 5 °C (CH ON/OFF hysteresis temperature)
- dTSH: 2 °C (CH Room temperature hysteresis)
- Zone 1 H-emission: RAD (Zone 1 emitter type) (RAD = Radiators,

RAD
OFF
Zone 2 H-emission
Force defrost
Heating setting
DEFAULTS
- Zone 2 H_emission: (Zone 2 emitter type) should be changed to
 
- Force defrost: ( NO = disabled, YES = defrosts if the heat
exchanger outlet temperature is less than 6 °C for more than 10
minutes.
5.8.9.3 For serviceman, AUTO mode setting
To set a parameter scroll through settings, use or . Press
O to select the parameter, and then press and to change
the parameter.
T4AUTOCMIN
21⁰C
25⁰C
T4AUTOHMAX
Auto mode setting
DEFAULTS
- T4AUTOCMIN: 25 (not applicable to this product)
- T4AUTOHMAX: 21 °C (CH is disabled if the outdoor temperature is
more than 21 °C)
5.8.9.4 For serviceman, Temp. type setting
To set a parameter scroll through settings, use or . Press
O to select the parameter, and then press and to change
the parameter.
Water flow temp.
NO
NO
YES
Room temp.
Double zone
Temp. type setting
DEFAULTS
- 
    
- 
    
- Double zone: NO (one zone), change to YES (for two zones)
5.8.9.5 For serviceman, Room thermostat setting
To set a parameter scroll through settings, use or . Press
O to select the parameter, and then press and to change
the parameter.
Room thermostat NO
Room thermostat setting
DEFAULTS
- Room thermostat: usually this should be left as One Zone, but
should be changed to NO if the heat pump user interface is to be
used as the room thermostat, or Double zone for 2 zones.