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Mitsubishi MT300 User Manual

Mitsubishi MT300
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134
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Service
'10 HM-T-149
Timing chart of DM value and supply water temperature
During this period, target water temperature is
(Menu 9.6.7)-1.5°C
Water temperature
DM value
Menu 9.1.1
(-60)
Menu 9.2.1
(-400)
Overshoot upper limit (Menu 9.6.7)
Midpoint
(-230)
Electric heater
is energized at
DM = Menu 9.2.1
(Combined mode)
Time
Electrical heater is stopped
energizing at DM midpoint
between Menu 9.1.1 and 9.2.1
(Alternating mode)
During Combined mode, compressor and electric heater are controlled according
to the target tank water temperature that is either [Target water temperature by
heating curve] + 2°C or HW end temperature, whichever is higher.
DM value
Time
Temperature gap > 10K
(Set on Menu 9.3.12)
Change DM value to
Menu 9.1.1 minus 1
forcibly to operate the
outdoor unit immediately
Temperature gap > 10+3K
(Set on Menu 9.3.12 and
9.3.13)
Change DM value to Menu 9.2.1 plus
1 forcibly.
(After confirming max request speed
of compressor, shift to combined mode)
Water temperature
Target water temperature by heating curve
Menu 9.1.1
(-60)
Menu 9.2.1
(-400)
Midpoint
(-230)
Change DM value to 1 forcibly to
stop the outdoor unit immediately.
Temperature gap > 10K
(Set on Menu 9.3.12)
DM value can not
decrease lower than
Menu 9.2.1 (setting value).
Target water temperature by heating curve
Actual supply water temp.
During Combined mode, target supply water
temperature is set at 1K lower than the actual
target temperature from heating curve.
Outdoor unit is start
operation at DMMenu 9.1.1
Operation control function by the indoor unit controller

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Mitsubishi MT300 Specifications

General IconGeneral
BrandMitsubishi
ModelMT300
CategoryHeat Pump
LanguageEnglish

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