Kaisai 06RY1, Руководство по обслуживанию

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M thermal Mono
26 202008
Midea
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user interface. Refer to the Mono Engineering Data Book Part 3, 7.4 “DHW MODE SETTING Menu”.
Domestic hot water demand priority can be ended by changing the switch on controller from "on" to "off".
Table 3-6.5: Component control during fast DHW operation
Component
Wiring
diagram label
6kW 8/10/12/14/16kW
Control functions and states
Inverter compressor
COMP
● ●
Controlled according to load requirement
DC fan motor FAN
● ●
Controlled according to outdoor heat exchanger
pipe temperature
Electronic expansion valve EXV
● ●
Position (steps) from 0 (fully closed) to 480 (fully
open), controlled according to discharge superheat
Four-way valve ST
● ●
On
Tank electric heater TBH
● ●
On
6.4 Two zones control
1
Two zones control function is used to control temperature of each zone separately, thus different type radiator will operate
at its optimal temperature and water pump cycle time will be reduced to save energy.
In two zones control for cooling mode, when the setting temperature of a certain zones is reached, the zone and water
pump of this zone will turn off.
In two zones control for heating mode, the on/off control of zone and water pump is same with cooling mode, but in
addition, the mixing valve (3-way valve SV3) control function will be activated to adjust the water temperature of the low
temperature zone by control the opening time and closing time of the valve. The mixing valve will only turn on when two
zones control for heating is activated. On other conditions, the mixing valve will keep off.
When the valve initially turns on, the opening time and closing time is same and then the time is controlled according to
the difference between water pipe temperature and setting water temperature of the controlling zone.
Hydraulic adapter PCB (Optional)
With the help of hydraulic adapter PCB, totally 8 thermostats can be used at the same time for maximum 8 rooms to
control heat pump.
Note:
1.
U nits just have the controlling function, while the mixing valve, water pump of each zone need to be field
supplied and connect to unit.
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M thermal Mono
202008 27
Part
3
- Con
trol
6.5 Smart grid control
Unit adjusts the operation according to different electrical signals to realize energy saving.
Free electric energy signal: DHW mode turn on, the setting temperature will be changed to 70
℃
automatically, and the
TBH operate as below:T5<69. the TBH is on, T5 ≥ 70, the TBH is off. The unit operate in cooling/heating mode as the
normal logic.
Common electric energy signal: unit operates according to users’ need.
Expensive electric energy signal: only available for cooling or heating mode and user can set the maximum operating time.
6.6 Balance tank temperature control
Balance tank temperature sensor is used to control on/off of heat pump.
Once the heat pump stops, internal pump stops to save energy and then balance tank provides hot water for space heating.
In addition, balance tank temperature control can meet both space heating and domestic hot water needs at the same
time. Balance tank can store energy to provide hot water whilst heat pump runs heat mode/cooling, which can reduce the
host selection and the initial investment.
6.7 USB data transfer

Convenient program upgrade
No need to carry any other heavy equipments but only USB can realize program upgrade of indoor unit and outdoor unit.

Parameter setting transmission between wired controllers
Installer can quickly copy the setting from one controller to another via USB, which save the time of on-site installation.
6.8 Dry contract M1M2 control
M1M2 can be set in the wired controller for heat pump on/off control, TBH control, AHS control.

For heat pump on/off control
When dry contract closes for 1s, heat pump stops. When dry contract opens for 5s, heat pump on/off according to wired
controller or room thermostat setting.

For TBH control
TBH is only controlled by M1M2. If dry contract closes, T5<65
℃
then TBH opens until water tank temperature reaches
70
℃
.

For AHS control
In heating mode
，
AHS on/off is only controlled by M1M2. In DHW mode, M1M2 control does not affect AHS on/off.
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Mono