-
75
-
-
75
-
'11 • PAC-T-160
5. TEST RUN
6. UTILIZATION OF EXISTING PIPING.
3) Setting SW3-1, SW3-2, on-site
(1) Defrost control switching (SW3-1)
・
When this switch is turned ON, the unit will run in the defrost mode more frequently.
・
Set this switch to ON, when installed in a region where outdoor temperature falls below zero during the season the unit is run for a heating
operation.
(2) Snow guard fan control (SW3-2)
・
When this switch is turned on, the outdoor unit fan will run for 10 seconds in every 10 minutes, when outdoor temperature falls to 3
℃
or
lower and the compressor is not running.
・
When the unit is used in a very snowy country, set this switch to ON.
5) The state of the electronic expansion valve.
The following table illustrates the steady states of the electronic expansion valve.
Valve for a cooling operation
During a cooling operation
When power is turned on
When the unit comes to a normal stop
When the unit comes to an abnormal stop
Valve for a heating operation
During a heating operation
During a cooling operation
During a heating operation
Complete shut position
Full open position
Full open position
Full open position
Complete shut position
Full open position
Full open position
Complete shut position
Full open position
Full open position
2) Checking the state of the unit in operation
Use check joints provided on the piping before and after the four-way valve installed inside the outdoor
unit for checking discharge pressure and suction pressure.
As indicated in the table shown on the right, pressure detected at each point will vary
depending on whether a cooling or heating operation has been selected.
SWITCHES FOR ON-SITE SETTING
SW5
All set to OFF for shipment
All set to OFF for shipment
SWITCHES FOR ON-SITE SETTING
SW3
Cooling during a test run
Heating during a test run
Normal or After the test operation
●
If an error code other than those listed above is indicated, refer to the wiring diagram of the outdoor unit and the indoor unit.
Error indicated on the
remote control unit
Action
Failure event
Open phase
63H1 actuation or operation with operation valves shut
(occurs mainly during a heating operation)
Low pressure error or operation with operation valves shut
(occurs mainly during a cooling operation)
1. Check whether the operation valves are open.
2. If an error has been canceled when 3 minutes have elapsed
since a compressor stop, you can restart the unit by
effecting Check Reset from the remote control unit.
●
Before conduct a test run, do not fail to make sure that the operation valves are closed.
●
Turn on power 6 hours prior to a test run to energize the crank case heater.
●
In case of the first operation after turning on power, even if the unit does not move for 30 minutes, it is not a breakdown.
●
Always give a 3-minute or longer interval before you start the unit again whenever it is stopped.
●
Removing the service panel will expose high-voltage live parts and high-temperature parts, which are quite dangerous.
Take utmost care not to incur an electric shock or burns. Do not leave the unit with the service panel open.
●
When you operate switches (SW3, SW5) for on-site setting, be careful not to touch a live part.
●
You cannot check discharge pressure from the liquid operation valve charge port.
●
The 4-way valve (20S) is energized during a heating operation.
●
When power supply is cut off to reset the unit, give 3 or more minutes before you turn on power again after power is cut
off. If this procedure is not observed in turning on power again, “Communication error between outdoor and indoor unit”
may occur.
Check item
Check
Check
Item
Turn
The contents of operation
Electric
wiring
Refrigerant
plumbing
Indoor unit
WARNING
WARNING
CAUTION
1) Test run method
(1) A test run can be initiated from an outdoor unit by using SW3-3 and SW3-4 for on-site
setting.
(2) Switching SW3-3 to ON will start the compressor.
(3) The unit will start a cooling operation, when SW3-4 is OFF, or a heating operation, when SW3-4 is ON.
(4)
Do not fail to switch SW3-3 to OFF when a test run is completed.
ON
1
2
3
4
ON
1
2
3
4
SW-3-3
ON
OFF
Cooling
operation
Heating
operation
Discharge pressure
(High pressure)
Suction pressure
(Low pressure)
Suction pressure
(Low pressure)
Discharge pressure
(High pressure)
SW-3-4
OFF
ON
----
Printed circuit board LED(The cycles of 5 seconds)
Red LED
Blinking once
Blinking once
Blinking once
4) Failure diagnosis in a test run
Check power cables for loose contact or disconnection
E34
E40
E49
Charge port of the
gas operation valve
Check joint of the pipe
●
When you leave the outdoor unit with power supplied to it,
be sure to close the panel.
●
Always carry out a test run and check the following in order as listed.
If brazed, was it brazed under a nitrogen gas flow?
Were air-tightness test and vacuum extraction surely performed?
Are heat insulation materials installed on both liquid and gas pipes?
Are operation valves surely opened for both liquid and gas systems?
Have you recorded the additional refrigerant charge volume and refrigerant pipe length on the panel’s label?
Is the unit free of cabling errors such as uncompleted connection, an absent or reversed phase?
Are properly rated electrical equipments used for circuit breakers and cables?
Doesn’t cabling cross-connect between units, where more than one unit are installed?
Aren’t indoor-outdoor signal wires connected to remote control wires?
Do indoor-outdoor connecting cables connect between the same terminal numbers?
Are either VCT cabtyre cables or WF flat cables used for indoor-outdoor connecting cables?
Does grounding satisfy the D type grounding (type III grounding) requirements?
Is the unit grounded with a dedicated grounding wire not connected to another unit’s grounding wire?
Are cables free of loose screws at their connection points?
Are cables held down with cable clamps so that no external force works onto terminal connections?
Is indoor unit installation work completed?
Where a face cover should be attached onto an indoor unit, is the face cover attached to the indoor unit?
Open the gas side operation valve fully.
Open the liquid side operation valve fully.
Close the panel.
Where a remote control unit is used for unit setup on the installation site, follow instructions for unit setup on the installation site with a remote control unit.
SW3-3 ON / SW3-4 OFF: the unit will start a cooling operation.
SW3-3 ON / SW3-4 ON: the unit will start a heating operation.
When the unit starts operation, press the wind direction button provided on the remote control unit to check its operation.
Place your hand before the indoor unit’s diffuser to check whether cold (warm) winds come out in a cooling (heating) operation.
Make sure that a red LED is not blinking.
When you complete the test run, do not forget to turn SW3-3 to the OFF position.
Where options are used, check their operation according to the respective instruction manuals.
①
②
③
④
⑤
⑥
⑦
⑧
⑨
⑩
2
4
ー
Test run procedure
Green LED
Blinking continuously
Blinking continuously
Blinking continuously
A failure to observe these instructions can result in a compressor breakdown.
Item No.used in the
installation manual
Pipe size
Items to checkbefore a test run
<Table of pipe size restrictions>
<Pipe system after the branching pipe>
<Where the existing unit can be run for a cooling operation.>
<The model types of existing units of which branching pipes are reusable.>
Formula to calculate additional charge volume
Liquid pipe
φ
9.52
φ
9.52
φ
12.7
φ
12.7
Gas pipe
φ
15.88
φ
19.05
φ
15.88
φ
19.05
Usability
◎
○※1
△
△※1
Maximum one-way pipe length
50
50
25
25
Length covered without additional charge
30 30 15 15
Usability
◎
○※1
△
△※1
Maximum one-way pipe length
50
50
25
25
Length covered without additional charge
30 30 15 15
Usability
◎
○※1
△
△※1
Maximum one-way pipe length
50
50
25
25
Length covered without additional charge
30 30 15 15
100VN
100VS
125VN
125VS
0.06kg/m
0.08kg/m
140VN
140VS
NO
Are the existing units our products?
Check whether an existing pipe system is reusable or not by using the following flow chart.
NO
NO
NO
Is the existing pipe system to reuse free of corrosion, flaws or dents?
Repair the damaged parts.
Remove those branches.
Repair the damaged parts.
Check the pipe system for air tightness on the site.
Repair the damaged parts.
NO
NO
NO
NO
No loose pipe supports
NO
YES
START
The existing pipe system is reusable.
The existing pipe system is not reusable.
Install a new pipe system.
YES
YES
YES
YES
YES
Are an outdoor unit and an indoor unit connected to the
existing pipe system to reuse?
Is the unit to install in the existing pipe system a
twin-triple-double-twin model?
Is the existing pipe system to reuse free of gas leaks?
(Check whether refrigerant charge was required frequently for
the system before)
Are heat insulation materials of the existing pipe system to
reuse free of peel-offs or deterioration?
(Heat insulation is necessary for both gas and liquid pipes)
Are there any branch pipes with no indoor unit connected?
Change the branching pipe to a specified type.
Aren’t there any loose pipe supports?
Does the existing pipe system to reuse satisfy all of the following?
(1) The pipe length is 50m or less.
(2) The pipe size conforms to the table of pipe size restrictions.
(3) The elevation difference between the indoor and outdoor units
conforms to the following restrictions.
Where the outdoor unit is above: 30m or less
Where the outdoor unit is below: 15m or less
Which of the following refrigeration oils
does the existing unit use?
Suniso, MS, Barrel Freeze, HAB, Freol,
ether oil, ester oil
Make an inquiry
for reusability.
※
Check with the flow chart developed for a case where
an existing pipe system is reused for a
twin-triple-double-twin model published as a
technical data sheet.
The branching pipes used with models other than those listed above are not reusable because of their insufficient
pressure resistance. Please use our genuine branching pipes for R410A.
●
＊ ＊ ＊
are numbers representing horsepower.
□ □ □
is an alphanumeric letter.
Change
Change is impossible.
Can Use
Can‘t
Use
Repair is impossible.
Air tightness is
impossible.
Remove is
impossible
Repair is impossible.
Repair
Repair
Repair
Some loose pipe supports
Air tightness is OK
Remove
◎:
Standard pipe size
○:
Usable
△:
Restricted to shorter pipe length limits
×:
Not usable
Carry out the following steps with the excising unit
(in the order of (1), (2), (3) and (4))
(1) Run the unit for 30 minutes for a cooling operation.
(2) Stop the indoor fan and run the unit for 3 minutes for a cooling operation (returning liquid)
(3) Close the liquid side operation valve of the outdoor unit and pump down (refrigerant recovery)
(4) Blow with nitrogen gas.
※
If discolored refrigeration oil or any foreign matters is discharged by the blow,
wash the pipe system or install a new pipe system.
●
For the flare nut, do not use the old one, but use the one supplied with the outdoor unit.
Process a flare to the dimensions specified for R410A.
●
Turn on-site setting switch SW5-1
to the ON position. (Where the gas pipe size is
φ
19.05)
<Where the existing unit cannot be run for a cooling operation.>
Wash the pipe system or install a new pipe system.
●
If you choose to wash the pipe system, contact our distributor in the area.
Models later than Type 8.
●
F D C
＊ ＊ ＊
8
□ □ □
●
F D C P
＊ ＊ ＊
8
□ □ □
Additional charge volume (kg) = {Main pipe length (m) – Length covered without additional charge shown in the table (m)}
×
Additional charge volume per meter of pipe shown in the table (kg/m)
＋
Total length of branch pipes (m)
×
Additional charge volume per meter of pipe shown in the table (kg/m)
※
If you obtain a negative figure as a result of calculation, no additional refrigerant needs to be charged.
Example)
When an 140V (single installation) is installed in a 20m long existing pipe system (liquid
φ
12.7, gas
φ
19.05),
the quantity of refrigerant to charge additionally should be (20m-15m) x 0.08kg/m = 0.4 kg.
Model
Power source
Power cable thickness(mm
2
)
MAX. over current (A)
Cable length (m)
Grounding wire thickness
100VN
㨪
140VN
100VNX
125VNX,140VNX
100VS
㨪
140VS
100VSX
㨪
140VSX
5.5
φ
1.6mm
24
25
26
23
3.5
15
27
φ
1.6mm x 3
φ
1.6mm x 3
3 phase 4 wire
380V 50Hz
Single phase 3 wire
220-240V 50Hz
220V 60Hz
Indoor-outdoor wire thickness
×
number
Model
Power source
Power cable thickness(mm
2
)
MAX. over current (A)
Cable length (m)
Grounding wire thickness
100VN,100VNX
125VN
140VN
125VNX
140VNX
100VS,100VSX
125VS,125VSX
140VS,140VSX
5.5
8
φ
1.6mm
25
27
28
29
30
16
18
19
24
22
32
31
30
26
23
21
3.5
3 phase 4 wire
380-415V 50Hz
380V 60Hz
Single phase 3 wire
220-240V 50Hz
220V 60Hz
Indoor-outdoor wire thickness
×
number
●
The specifications shown in the above table are for units without heaters. For units with heaters, refer to the installation instructions or the construction
instructions of the indoor unit.
●
Switchgear or Circuit breaker capacity which is calculated from MAX. over current should be chosen along the regulations in each country.
●
The cable specifications are based on the assumption that a metal or plastic conduit is used with no more than three cables contained in a conduit and a
voltage drop is 2%. For an installation falling outside of these conditions, follow the internal cabling regulations. Adapt it to the regulation in effect in each
country.
※
At the connection with the duct type indoor unit.
6)
Heed the following on the first operation after turning on the circuit breaker.
This outdoor unit may start in the standby mode (waiting for a compressor startup), which can continue up to 30 minutes, to prevent the oil
level in the compressor from lowering on the first operation after turning on the circuit breaker. If that is the case, do not suspect a unit failure.
Pipe size
Liquid pipe
Gas pipe
After 1st branch
After 2nd branch
Additional charging amount of refrigerant per 1m
Twin
Twin
Twin
Triple A
Triple B
Combination type
0.06kg/m
0.06kg/m
φ
9.52
φ
12.7
φ
15.88
φ
19.05
◎
◎
×
◎
×
○
○
◎
○
◎
×
×
○
×
○
φ
9.52
φ
12.7
φ
15.88
ー
ー
ー
ー
◎
ー
ー
ー
ー
○
ー
ー
ー
ー
×
50+50
60+60
71+71
50+50+50
50+50+50
Combination of capacity
Model
100V
125V
140V
Additional charging amount of refrigerant per 1m
Pipe size
Liquid pipe
Gas pipe
Usability
Maximum one-way pipe length
Length covered without additional charge
Usability
Maximum one-way pipe length
Length covered without additional charge
Usability
Maximum one-way pipe length
Length covered without additional charge
φ
12.7
φ
19.05
△※1
50
15
△※1
50
15
△※1
50
15
φ
12.7
φ
15.88
△
50
15
△
50
15
△
50
15
φ
9.52
φ
19.05
○※1
100
30
○※1
100
30
○※1
100
30
φ
9.52
φ
15.88
◎
100
30
◎
100
30
◎
100
30
φ
6.35
φ
15.88
△
20
10
△
20
10
△
20
10
100VNX
100VSX
125VNX
125VSX
0.06kg/m
0.02kg/m
0.08kg/m
140VNX
140VSX
Additional charging amount of refrigerant per 1m
※
1 Because of its insufficient pressure resistance,
turn the dip switch SW5-1
provided on the outdoor unit board to the ON position for
φ
19.05
×
t1.0.
(In the case of a twin-triple-double-twin model, this also applies to the case where
φ
19.05
×
t1.0 is used in a pipe system after the first branching point.)
However, you need not turn the dip switch SW5-1 to the ON position, if 1/2H pipes or pipes having 1.2 or thicker walls are used.
※
2 When the main pipe length exceeds 40m, a significant capacity drop may be experienced due to pressure loss in the liquid pipe system. Use
φ
12.7 for the
liquid main.
※
3 Keep the total pipe length, not one-way pipe length, below the specified maximum pipe length.
※
4 Piping size after branch should be equal or smaller than main pipe size.
※
5 Piping size from first branch to indoor unit should be
φ
9.52 (Liquid) /
φ
12.7 (Gas).
●
When refrigerant piping is shoter than 3m, reduce refrigerant by 1kg from factory charged volume.
●
Any combinations of pipe sizes not listed in the table or marked with
×
in the table are not usable.
※1
φ
19.05
※1
※
4
※
5
※
5
Summary of Contents for FDC100VNA
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