12
6. TEST RUNNING
Operate according to "gist for test running" on the electric control box
cover.
Test running can not start until the outdoor unit has been
connected to the power for 12hr.
Test running can not start until all the valves are affirmed
open.
Never make the forced running. (Or the protector sits back,
danger will occur.)
CAUTION
8. PRECAUTIONS ON REFRIGERANT
LEAKAGE
This air conditioner(A/C) adopts inncouous and nonflammable
refrigerant. The locating room of the A/C should big engough
that any refrigerant leakage is unable to reach critical thickness.
So certain esssential action can be taken on time.
A[kg]
B[m ]
3
Critical thickness------the Max. thickness of Freon without any
harm to person.
Refrigerant critical thickness: 0.44[kg/m ] for R410A.
3
Confirm the critical thickness through follow steps, and take
necessary actions.
1. Calculate the sum of the charge volume (A[kg]) Total
Refrigerant volume of 10HP=factory refrigerant
volume + superaddition
2. Calculate the indoor cubage (B[m ]) (as the minimum
cubage.
3
3. Calculate the refrigerant thickness
≤critical thickness
Counter measure against over high thickness
1. Installmechanicalventilator to reduce the refrigerant thickness
under critical level. (ventilate regularly)
2. Install leak alarm facility related to mechanical ventilator if
you can not regularly ventilate.
b. Leak alarm related to mechanical ventilator
A. Ventilation
peristome
(Leak hunting siren should be installed in
places easily keep refrigerant)
Indoor unit
Outdoor unit
Indoor unit
Room full of leak refrigerant
(All refrigerant has run up)
Fig. 8-1
Please cut off the power supply when changing the dial switch
NOTE
This chapter describes how the system configuration can be
implemented once the installation is complete, and other relevant
information.
It contains the following information:
▪ Implement field settings
▪ Energy-saving and optimized operation
The installation personnel should read this chapter.
Information
i
7. CONFIGURATION
7.1 Overview
7.2 Dial Switch Settings
Dial code definitions:
means 0 means 1
Auto priority (default)
S2
000
100
010
110
Cooling priority
First ON priority
Heating only
Other combinations,Heating priority
Cooling only
001
Clear indoor unit addresses
S1-2
S1-3
0
0
1
1
Outdoor unit capacity,260
Outdoor unit capacity,280
00
10
Auto addressing (default)
S9-1
S9-2
Factory test only
Reserved
Reserved
01
11
When connected to 2nd generation DC indoor unit(default)
S1-1
0
1
When connected to AC or 1st generation DC indoor unit
ENC1
S9-3
0-7
Outdoor unit network address setting,
Only 0 to 7 should be selected (default is 0).
ENC3
&
0-F
The number of indoor units is in the range 0-15
0-9 on ENC1 indicate 0-9 indoor units;
A-F on ENC1 indicate 10-15 indoor units
The number of indoor units is in the range 16-31
0-9 on ENC1 indicate 16-25 indoor units;
A-F on ENC1 indicate 26-31 indoor units
1
0-F
0
1 2 3
1 2 3
1 2 3
1 2 3
1 2 3
1 2 3
1 2 3
Outdoor unit capacity,224/200(customer)
12
6. TEST RUNNING
Operate according to "gist for test running" on the electric control box
cover.
Test running can not start until the outdoor unit has been
connected to the power for 12hr.
Test running can not start until all the valves are affirmed
open.
Never make the forced running. (Or the protector sits back,
danger will occur.)
CAUTION
8. PRECAUTIONS ON REFRIGERANT
LEAKAGE
This air conditioner(A/C) adopts inncouous and nonflammable
refrigerant. The locating room of the A/C should big engough
that any refrigerant leakage is unable to reach critical thickness.
So certain esssential action can be taken on time.
A[kg]
B[m ]
3
Critical thickness------the Max. thickness of Freon without any
harm to person.
Refrigerant critical thickness: 0.44[kg/m ] for R410A.
3
Confirm the critical thickness through follow steps, and take
necessary actions.
1. Calculate the sum of the charge volume (A[kg]) Total
Refrigerant volume of 10HP=factory refrigerant
volume + superaddition
2. Calculate the indoor cubage (B[m ]) (as the minimum
cubage.
3
3. Calculate the refrigerant thickness
≤critical thickness
Counter measure against over high thickness
1. Installmechanicalventilator to reduce the refrigerant thickness
under critical level. (ventilate regularly)
2. Install leak alarm facility related to mechanical ventilator if
you can not regularly ventilate.
b. Leak alarm related to mechanical ventilator
A. Ventilation
peristome
(Leak hunting siren should be installed in
places easily keep refrigerant)
Indoor unit
Outdoor unit
Indoor unit
Room full of leak refrigerant
(All refrigerant has run up)
Fig. 8-1
Please cut off the power supply when changing the dial switch
NOTE
This chapter describes how the system configuration can be
implemented once the installation is complete, and other relevant
information.
It contains the following information:
▪ Implement field settings
▪ Energy-saving and optimized operation
The installation personnel should read this chapter.
Information
i
7. CONFIGURATION
7.1 Overview
7.2 Dial Switch Settings
Dial code definitions:
means 0 means 1
Auto priority (default)
S2
000
100
010
110
Cooling priority
First ON priority
Heating only
Other combinations,Heating priority
Cooling only
001
Clear indoor unit addresses
S1-2
S1-3
0
0
1
1
Outdoor unit capacity,260
Outdoor unit capacity,280
00
10
Auto addressing (default)
S9-1
S9-2
Factory test only
Reserved
Reserved
01
11
When connected to 2nd generation DC indoor unit(default)
S1-1
0
1
When connected to AC or 1st generation DC indoor unit
ENC1
S9-3
0-7
Outdoor unit network address setting,
Only 0 to 7 should be selected (default is 0).
ENC3
&
0-F
The number of indoor units is in the range 0-15
0-9 on ENC1 indicate 0-9 indoor units;
A-F on ENC1 indicate 10-15 indoor units
The number of indoor units is in the range 16-31
0-9 on ENC1 indicate 16-25 indoor units;
A-F on ENC1 indicate 26-31 indoor units
1
0-F
0
1 2 3
1 2 3
1 2 3
1 2 3
1 2 3
1 2 3
1 2 3
Outdoor unit capacity,224/200(customer)
13
8. PRECAUTIONS ON REFRIGERANT
LEAKAGE
This air conditioner(A/C) adopts inncouous and nonflammable
refrigerant. The locating room of the A/C should big engough
that any refrigerant leakage is unable to reach critical thickness.
So certain esssential action can be taken on time.
A[kg]
B[m ]
3
Critical thickness------the Max. thickness of Freon without any
harm to person.
Refrigerant critical thickness: 0.44[kg/m ] for R410A.
3
Confirm the critical thickness through follow steps, and take
necessary actions.
1. Calculate the sum of the charge volume (A[kg]) Total
Refrigerant volume of 10HP=factory refrigerant
volume + superaddition
2. Calculate the indoor cubage (B[m ]) (as the minimum
cubage.
3
3. Calculate the refrigerant thickness
≤critical thickness
Counter measure against over high thickness
1. Installmechanicalventilator to reduce the refrigerant thickness
under critical level. (ventilate regularly)
2. Install leak alarm facility related to mechanical ventilator if
you can not regularly ventilate.
b. Leak alarm related to mechanical ventilator
A. Ventilation
peristome
(Leak hunting siren should be installed in
places easily keep refrigerant)
Indoor unit
Outdoor unit
Indoor unit
Room full of leak refrigerant
(All refrigerant has run up)
Fig. 8-1
8.1 Important information for the used
refrigerant
This product has the fluorinated gas, it is forbidden to release to air.
Refrigerant type: R410A; Volume of GWP: 2088;
GWP=Global Warming Potential
Model
Refrigerant/kg tonnes CO2 equivalent
6.5 13.57
20-28kW
Factory charge
Attention:
Frequency of Refrigerant Leak Checks
For equipment that contains fluorinated greenhouse gases
in quantities of 5 tonnes of CO
2
equivalent or more,but of
less than 50 tonnes of CO
2
equipment,at least every 12
months, or where a leakage detection system is installed, at
least every 24 months
1)
2) For equipment that contains fluorinated greenhouse gases in
quantities of 50 tonnes of CO
2
equivalent or more,but of less than
500 tonnes of CO
2
equipment,at least every six months, or where
a leakage detection system is installed, at least every 12 months.
3) For equipment that contains fluorinated greenhouse gases in
quantities of 500 tonnes of CO
2
equivalent or more,at least every
three months, or where a leakage detection system is installed,
at least every six months.
4) Non-hermetically sealed equipment charged with fluorinated
greenhouse gases shall only be sold to the end user where evidence
is provide that the installation is to be carried out by an undertaking
certified person.
5) Only certificated person is allowed to do installation, operation
and maintenance.
33.5kW
816.71