Kaisai KMK-60RY1, Installation Manual

Page: 99 / 148

21
8.2 Main components
8 OVERVIEW OF THE UNIT
8.1 Disassembling the unit
To gain access to the control box components – e.g. to connect the field wiring – the control box service panel can be
removed. Thereto, loosen the front screws and unhitch the control box service panel.
The indoor unit cover can be removed by removing the 2 screws and unhitching the cover.
Make sure to fix the cover with the screws and nylon washers when installing the cover (screws are delivered as
accessory) .Parts inside the unit can be hot.
CAUTION
Switch off all power supply – i.e. outdoor unit power supply ,indoor unit power supply, electric heater and additional
heater power supply before removing the control box service panel.
CAUTION
F
14.1
5.3
5.4
5.1
5.2
3
4
10
2 9
8 14.2 11 13 7
11
12
F
14.1
5.3
5.4
5.1
5.2
3
4
10
2 9
8 14.2 11
5.5
13 7
11
12
115
Basic
Customized
22
Assembly unit Code
1
2
3
4
5
6
7
8
9
10
11
12
Automatic air purge valve
Expansion vessel (8 L)
Refrigerant gas pipe
Refrigerant liquid pipe
Temperature sensors
Drainage port
Pressure relief valve
Flow switch
Pump_i
Plate heat exchanger
Water outlet pipe
Water inlet pipe
Explaination
Remaining air in the water circuit will be automatically removed
via the automatic air purge valve.
/
Four temperature sensors determine the water and refrigerant
temperature at various points.
5.1-T2B; 5.2-T2; 5.3-Tw_out; 5.4-Tw_in; 5.5-T1
The manometer allows readout of the water pressure in the water
circuit.
If water flow is below 0.6 m
3
/h, the flow switch open, then when the
water flow reach 0.66 m
3
/h,the flow switch close.
The pump circulates the water in the water circuit.
Heat exchanging between water and refrigerant.
/
/
/
/
/
13
14
15
Manometer
Electrical heating belt(14.1-14.2)
Internal backup heater
They are for preventing frozen.(14.2 is optional)
The backup heater consists of an electrical heating element that will
provide additional heating capacity to the water circuit if the heating
capacity of the unit is insufficient due to low outdoor temperatures, it
also protects the external water piping from freezing during cold periods.
The pressure relief valve prevents excessive water pressure in the
water circuit by opening at 43.5psi(g)/0.3MPa(g) and discharging
some water.
Basic
Customized
11 3 4
12
6
14.2
2
7
13
5.4
5.1
9
5.2
14.1
5.3
1 8
14.2
2
7
13
15
5.4
5.1
9
5.2
14.1
5.3
1
8
10
10
11 3 4
12
6
99 98