Service And Maintenance; Engineers Forms - Mitsubishi Electric EHST20C-VM6HB Service Manual

13

SERVICE AND MAINTENANCE

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
Legionella prevention
Heating
Compensation Hi set point
curve
Lo set point Zone1 outdoor ambient temp.
Adjust
Holiday
Initial settings
Service menu
*1 The settings related to Zone2 can be switched only when Zone2 temperature control is enabled (when Dip SW2-6 and SW 2-7 are ON).
*2 Decreasing "time before pump switched off" may increase the duration of stand-by in Heating mode.
OCH531
Zone1 heating room temp.
Zone2 heating room temp. *1
Zone1 heating flow temp.
Zone2 heating flow temp. *1
Zone1 heating compensation curve
Zone2 heating compensation curve *1
Holiday mode
Forced DHW operation
DHW
Heating
Holiday mode
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
Zone operation mode *1
Zone1 outdoor ambient temp.
Zone1 flow temp.
Zone outdoor ambient temp. *1
Zone2 flow temp. *1
Zone1 flow temp.
Zone outdoor ambient temp. *1
Zone2 flow temp.
Zone1 outdoor ambient temp.
Zone1 flow temp.
Zone outdoor ambient temp. *1
Zone2 flow temp. *1
DHW
Heating
Zone1 heating room temp.
Zone2 heating room temp. *1
Zone1 heating flow temp.
Zone2 heating flow temp. *1
Language
°C/°F
Temp. display
Time display
Room sensor settings for Zone1
Room sensor settings for Zone2 *1
Room RC zone select *1
Thermistor
THW1
adjustment
THW
THW5
THW6
THW7
THW8
THW9
THWB1
THWB
Auxiliary settings Economy settings
for pump.
Electric heater
(Heating)
Electric heater
(DHW)
Mixing valve control Running (10 - 240 secs)
Pump speed
Parameters
10°C - 0°C
10°C - 0°C
5°C - 60°C
5°C - 60°C
−9°C - + 9°C
−9°C - + 9°C
Active/Non active/Set time
On/Off
On/Off/Timer
On/Off/Timer
Active/Non active/Set time
Normal/Eco
40°C - 60°C
5°C - 0°C
0 - 10 mins
0 - 10 mins
Yes/No
60°C - 70°C
1 - 0 days
00.00 - .00
1 - 5 hours
1 - 10 mins
Room temp/Flow temp/Compensation curve
Room temp/Flow temp/Compensation curve
−15°C - +35°C
25°C – 60°C
−15°C - +35°C
5°C - 60°C
−15°C - +35°C
5°C - 60°C
−15°C - +35°C
5°C - 60°C
−14°C - +34°C
5°C - 60°C
−14°C - +34°C
5°C - 60°C
Active/Non active
Active/Non active
10°C - 0°C
10°C - 0°C
5°C - 60°C
5°C - 60°C
ENG/FR/GER/SW/SP/IT/DA/NL/FIN/NOR/PT ENG
°C/°F
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/Zone
−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 *4
Time before pump switched off (3 - 60 mins) *
Space heating: On (used)/Off (not used)
Electric heater delay timer (5 - 180 mins)
DHW: On (used)/Off (not used)
Electric heater delay timer (15 - 0 mins)
Interval (1 - 0 mins)
Pump speed (1 - 5)
86
Default set- Field
Notes
ting setting
0°C
0°C
45°C
5°C
0°C
0°C
—
—
On
On
—
Normal
50°C
10°C
60 mins
0 mins
Yes
65°C
15 days
0.00
 hours
0 min
Room temp
Compensation
curve
−15°C
50°C
−15°C
40°C
5°C
5°C
5°C
5°C
—
—
—
—
Non active
Active
15°C
15°C
5°C
5°C
°C
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
0 mins
On
15 mins
10 secs
 mins
5
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