Service And Maintenance; Engineers Forms - Mitsubishi Electric EHSD-MEC.UK Service Manual

SERVICE AND MAINTENANCE

13
The main controller settings changed from the default settings are reset by replacing the controller board. To facilitate reselecting settings on the main controller, it is
recommended to write down the changes in the sheet below before replacement.

13-1. Engineers Forms

Should settings be changed from default, please enter and record new setting in 'Field Setting' column. This will ease resetting in the future should the system use
change or the circuit board need to be replaced.
Commissioning/Field settings record sheet
Main controller screen
Main
Option
Setting DHW *13
Legionella prevention *13
Heating/ Cooling *12
Compensation Hi flow temp. set
curve
point
Lo flow temp. set
point
Adjust
Holiday
Initial settings
Service menu
*1 The settings related to Zone2 can be switched only when 2 Zone temperature control is enabled (when DIP SW2-6 and SW 2-7 are ON).
*2 For the model without both booster and immersion heater, it may not reach the set temperature depending on the outside ambient temperature.
*3 The lower limit is -15°C depending on the connected outdoor unit.
*4 The lower limit is -13°C depending on the connected outdoor unit.
*5 The lower limit is -14°C depending on the connected outdoor unit.
OCH571
Zone1 heating room temp.
Zone2 heating room temp. *1
Zone1 heating flow temp.
Zone2 heating flow temp. *1
Zone1 cooling flow temp. *12
Zone2 cooling flow temp. *12
Zone1 heating compensation curve
Zone2 heating compensation curve *1
Holiday mode
Forced DHW operation
DHW
Heating/Cooling
Energy monitor
Operation mode
DHW max. temp.
DHW temp. drop
DHW max. operation time
DHW mode restriction
Active
Hot water temp.
Frequency
Start time
Max. operation time
Duration of maximum temp.
Zone1 operation mode
Zone2 operation mode *1
Zone1 outdoor ambient temp.
Zone1 flow temp.
Zone2 outdoor ambient temp. *1
Zone2 flow temp. *1
Zone1 outdoor ambient temp.
Zone1 flow temp.
Zone2 outdoor ambient temp. *1
Zone2 flow temp.
Zone1 outdoor ambient temp.
Zone1 flow temp.
Zone2 outdoor ambient temp. *1
Zone2 flow temp. *1
DHW *13
Heating/ Cooling *12
Zone1 heating room temp.
Zone2 heating room temp. *1
Zone1 heating flow temp.
Zone2 heating flow temp. *1
Zone1 cooling flow temp. *12
Zone2 cooling flow temp. *12
Language
°C/°F
Summer time
Temp. display
Time display
Room sensor settings for Zone1
Room sensor settings for Zone2 *1
Room RC zone select *1
Thermistor THW1
THW2
adjustment
THW5
THW6
THW7
THW8
THW9
THWB1
THWB2
Auxiliary settings Economy settings for
pump.
Electric heater
(Heating)
Electric heater
(DHW) *13
Mixing valve control
Flow sensor
Parameters
10°C - 30°C
10°C - 30°C
25°C - 60°C
25°C - 60°C
5°C - 25°C
5°C - 25°C
−9°C - + 9°C
−9°C - + 9°C
Active/Non active/Set time
On/Off
On/Off/Timer
On/Off/Timer
Consumed electrical energy/Delivered energy
Normal/Eco
40°C - 60°C *2
5°C - 30°C
30 - 120 mins
30 - 120 mins
Yes/No
60°C - 70°C *2
1 - 30 days
00.00 - 23.00
1 - 5 hours
1 - 120 min
Heating room temp/ Heating flow temp/ Heating
compensation curve/ Cooling flow temp
Heating room temp/ Heating flow temp/ Heating
compensation curve/ Cooling flow temp
−30°C - +33°C *3
25°C – 60°C
−30°C - +33°C *3
25°C - 60°C
−28°C - +35°C *4
25°C - 60°C
−28°C - +35°C *4
25°C - 60°C
−29°C - +34°C *5
25°C - 60°C
−29°C - +34°C *5
25°C - 60°C
Active/Non active
Active/Non active
10°C - 30°C
10°C - 30°C
25°C - 60°C
25°C - 60°C
5°C - 25°C
5°C - 25°C
EN/FR/DE/SV/ES/IT/DA/NL/FI/NO/PT/BG/PL/CS/RU EN
°C/°F
On/Off
Room/DHW tank/Room&DHW tank /Off
hh:mm/hh:mm AM/AM hh:mm
TH1/Main RC/Room RC1-8/"Time/Zone"
TH1/Main RC/Room RC1-8/"Time/Zone"
Zone1/Zone2
−10°C - +10°C
−10°C - +10°C
−10°C - +10°C
−10°C - +10°C
−10°C - +10°C
−10°C - +10°C
−10°C - +10°C
−10°C - +10°C
−10°C - +10°C
On/Off *6
Delay
Space heating: On (used)/Off (not used)
Electric heater delay timer (5 - 180 minutes)
Booster heater DHW: On (used)/Off (not used)
Immersion heater DHW: On (used)/Off (not used)
Electric heater delay timer (15 - 30 minutes)
Running (10 - 240 secs)
Interval (1 - 30 mins)
Minimum(0 - 100L/min.)
Maximum(0 - 100L/min.)
80
Default setting Field setting Notes
20°C
20°C
45°C
35°C
15°C
20°C
0°C
0°C
—
—
On
On
—
Normal
50°C
10°C
60 mins
30 mins
Yes
65°C
15 days
03.00
3 hours
30 min
Room temp
Compensation
curve
−15°C
50°C
−15°C
40°C
35°C
25°C
35°C
25°C
—
—
—
—
Non active
Active
15°C
15°C
35°C
25°C
25°C
25°C
°C
Off
Off
hh:mm
TH1
TH1
Zone1
0°C
0°C
0°C
0°C
0°C
0°C
0°C
0°C
0°C
On
10 mins
On
30 mins
On
On
15 mins
120 secs
2 mins
5 L/min.
100 L/min.