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Daikin RWEYQ24PY1 [11/22] 1 optional parts
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English 6
2.
Because the plate type heat exchanger has a structure which
does not permit disassembling and cleaning, follow the following
procedures for cleaning:
1) For maintenance purposes it is required to provide for a con-
nection port on the water inlet and on the water outlet. You must
connect a circulation pump inbetween these 2 connection ports
when cleaning the plate heat exchanger with chemicals.
For cleaning the scale in the plate heat exchanger it is recom-
mended to use a solution with 5% diluted formic, citric, oxalic,
acetic or phosphoric acid.
Never use hydrochloric, sulfuric or nitric acid because such
solutions have a strong corrosive feature.
2) Make sure to provide for a stopvalve in front of that inlet water
pipe connection port and for a stopvalve after the outlet water
pipe connection port.
3) Connect the piping for circulation of cleaning chemicals to the
inlet piping of plate type heat exchanger. Fill the cleaning solu-
tion of 50 - 60°C for a while in the plate type heat exchanger.
Then, circulate the cleaning solution by a pump for 2-5 hours.
The time for cleaning depends on the temperature of cleaning
solution or the degree of scale accumulation. Therefore,
please watch the change of the dirtiness (color) of cleaning
solution to determine the level of removal of scale.
4) After circulating the cleaning solution, discharge the solution
from the plate type heat exchanger, fill the heat exchanger with
a solution of 1-2% sodium hydroxide (NaOH) or sodium bicar-
bonate (NaHCO
3
). Circulate this solution for 15-20 minutes for
neutralization purpose.
5) After the process of neutralization has been completed, rinse
the inner part of the plate type heat exchanger with care using
fresh and clean water.
6) When using any cleaning agent sold in the market, check in
advance that such agent has no corrosive features against
stainless steel and copper.
7) For details of cleaning method, ask the manufacturer of related
cleaning agent.
3.
After cleaning has been completed, make sure that the unit can
be operated in a normal fashion.
8. FIELD WIRING
Caution
• All field wiring and components must be installed by a licensed
electrician and must comply with relevant local and national
regulations.
• The field wiring must be carried out in accordance with the wiring
diagrams and the instructions given below.
• Be sure to use a dedicated power circuit. Never use a power sup-
ply shared by another appliance.
• Do not operate until refrigerant piping work is completed.
(If operated before complete the piping work, the compressor may
be broken down.)
• Never remove thermistor, sensor or etc. when connecting power
wiring and transmission wiring.
(If operated with thermistor, sensor or etc. removed, the compres-
sor may be broken down.)
• Be sure to install an earth leak detector.
(This unit uses an inverter, so install the earth leak detector that
be capable of handling high harmonics in order to prevent mal-
functioning of the earth leak detector itself.)
• This product have reversed phase protection detector that only
works when the product started up.
• Do not run the unit by short cutting the protection device (S1PH).
If there exists the possibility of reversed phase, lose phase,
momentary black out or the power goes on and off while the prod-
uct is operating, attach a reversed phase protection circuit locally.
Running the product in reversed phase may break the compres-
sor and other parts.
• Attach the power wire securely.
• Introducing power with a missing N-phase or with a mistaken
N-phase will break the equipment.
8-1 Optional parts
Note
• When using the adaptor for sequential start, refer to chapter
“Examples”.
• For connection wiring to the central remote controller, refer to the
installation manual of the central remote controller.
8-2 Power circuit and cable requirements
A power circuit (see table below) must be provided for connection of
the unit. This circuit must be protected with the required safety
devices, i.e. a main switch, a slow blow fuse on each phase and an
earth leak detector.
When using residual current operated circuit breakers, be sure to use
a high-speed type 200mA rated residual operating current.
Note
• Use copper conductors only.
• Use insulated wire for the power cord.
• Select the power supply cable in accordance with relevant local
and national regulations.
• Wire size must comply with the applicable local and national code.
• Specifications for local wiring power cord and branch wiring are in
compliance with IEC60245.
• WIRE TYPE H05VV(*)
*Only in protected pipes, use H07RN-F when protected pipes are
not used.
8-3 General
• Up to 3 units can be connected by crossover power source wiring
between outside units. For details, refer to the equipment design
data and technical data.
• Make sure to connect the power source wire to the power source
terminal block and to clamp it as shown in figure 8, chapter “Field
line connection”.
• As this unit is equipped with an inverter, installing a phase
advancing capacitor will not only deteriorate power factor
improvement effect, but also may cause capacitor abnormal heat-
ing accident due to high-frequency waves. Therefore, never install
a phase advancing capacitor.
• Keep power imbalance within 2% of the supply rating.
1.
Large imbalance will shorten the life of the smoothing capaci-
tor.
2.
As a protective measure, the product will stop operating and
an error indication will be made, when power imbalance
exceeds 4% of the supply rating.
• Follow the “electrical wiring diagram” when carrying out any elec-
trical wiring.
• Only proceed with wiring work after blocking off all power.
• Always ground wires. (In accordance with national regulations of
the pertinent country.)
• Do not connect the ground wire to gas pipes, sewage pipes, light-
ning rods, or telephone ground wires.
Gas pipes: can explode or catch fire if there is a gas leak.
Sewage pipes: no grounding effect is possible if hard plastic pip-
ing is used.
Telephone ground wires and lightning rods: dangerous when
struck by lightning due to abnormal rise in electrical potential in
the grounding.
• This unit is equipped with an inverter device. The earth must be
connected in order to eliminate impact of the generated electro-
magnetic noise on other devices and to prevent leaked current
from being charged on the outer casing of the unit.
• Earth leak detector which are especially for protecting ground-
faults should be used in conjunction with main switch or fuse for
use with wiring.
• Connect the wire securely using designated wire and fix it with
attached clamp without applying external pressure on the termi-
nal parts (terminal for power wiring, terminal for transmission wir-
ing and earth terminal). See “field line connection”.
• Never connect the power supply in reversed phase.
(This product have reversed phase protection detector.
If the detector operate, replace two of the three phases
(L1, L2 and L3).)
Phase and
frequency
Voltage
Minimum
circuit amp.
Recom-
mended
fuses
Transmission
line selection
RWEYQ8PY1
φ
3, 50Hz 380-415V 12.6A 25A
0.75-1.25mm
2
RWEYQ10PY1
φ
3, 50Hz 380-415V 12.6A 25A
0.75-1.25mm
2
RWEYQ16PY1
φ
3, 50Hz 380-415V 25.3A 35A
0.75-1.25mm
2
RWEYQ18PY1
φ
3, 50Hz 380-415V 25.3A 35A
0.75-1.25mm
2
RWEYQ20PY1
φ
3, 50Hz 380-415V 25.3A 35A
0.75-1.25mm
2
RWEYQ24PY1
φ
3, 50Hz 380-415V 37.9A 45A
0.75-1.25mm
2
RWEYQ26PY1
φ
3, 50Hz 380-415V 37.9A 45A
0.75-1.25mm
2
RWEYQ28PY1
φ
3, 50Hz 380-415V 37.9A 45A
0.75-1.25mm
2
RWEYQ30PY1
φ
3, 50Hz 380-415V 37.9A 45A
0.75-1.25mm
2
01_EN_3P153897-8L.fm Page 6 Friday, July 11, 2008 5:04 PM
Содержание
- Installation manual 1
- Rweyq8py1 rweyq10py1 rweyq16py1 rweyq18py1 rweyq20py1 rweyq24py1 rweyq26py1 rweyq28py1 rweyq30py1 1
- System air conditioner 1
- Daikin industries ltd 2
- En60335 2 40 2
- Low voltage 2006 95 ec machinery safety 98 37 ec electromagnetic compatibility 2004 108 ec 2
- Noboru murata manager quality control department 1st of aug 2008 2
- P216950 1c 2
- P216950 1c fm page 1 tuesday july 15 2008 7 23 pm 2
- Umeda center bldg 2 4 12 nakazaki nishi kita ku osaka 530 8323 japan 2
- Figure 1 3
- Figure 10 3
- Figure 2 3
- Figure 3 3
- Figure 4 3
- Figure 5 3
- Figure 6 3
- Figure 7 3
- Figure 8 3
- Figure 9 3
- F1f2 f1f2 4
- Figure 11 4
- Figure 12 4
- Figure 13 4
- Figure 14 4
- Figure 15 4
- Figure 16 4
- Figure 17 4
- Figure 18 4
- Figure 19 4
- Figure 20 4
- Figure 22 figure 21 5
- Figure 23 5
- Figure 24 5
- Figure 25 figure 26 5
- Figure 27 5
- Contents 6
- English 6
- Important information regarding the refrig erant used 6
- Safety precaution 6
- Safety precautions 6
- 1 combination 7
- English 2 7
- Introduction 7
- 2 standard operation limit 8
- 3 standard supplied accessories 8
- 4 option accessory 8
- 5 technical and electrical specifications 8
- English 8
- Selection of location 8
- 1 when designing the equipment 9
- English 4 9
- Handling of the brazed plate type heat exchanger 9
- Inspecting and handling the unit 9
- Unpacking and placing the unit 9
- Water piping work 9
- 2 before starting a test run 10
- 3 daily service and maintenance 10
- 4 water quality 10
- 5 maintenance of plate type heat exchanger 10
- After the test run has been completed inspect the strainer at the inlet piping of the outside unit clean it if it is dirty 10
- After water has been completely filled in first run the pump only and then make sure that no air has been caught in the water cir culation system and the water flow rate is correct if any air has been caught or the flow rate is not enough the plate type heat exchanger may freeze measure any water pressure loss before and after the outside unit and make sure that the flow rate is as designed in case of any abnormal stop the test run immediately and carry out trouble shooting to resolve the trouble 10
- Before entering the season for use carry out the following inspections 10
- Before starting a test run please make sure that the piping work has been carried out in a proper manner especially make sure that the strainer air discharge valve automatic water supply valve expansion tank and cistern are positioned at their places correctly 10
- Carry out complete cooling thermal insulation of water piping and outdoor dehumidification if complete cooling or thermal insula tion has not been carried out any damage may be caused during severe winter due to freezing in addition to thermal loss 10
- Conduct a water quality test and make sure that it is within the standard 2 clean the strainer 3 make sure that the flow rate is correct 4 make sure that the operational conditions pressure flow rate outlet temperature etc are normal 10
- English 10
- Following the installation manual carry out a test run of the out side unit 10
- Management of chilled water flow rate if the chilled water flow rate is not enough it will result in the freez ing damage to the plate type heat exchanger check for any clog ging of the strainer any air being caught any reduction in the flow rate due to failure of circulation pump by measuring the tempera ture and pressure differences at the inlet and outlet ports of the plate type heat exchanger if the aged difference in the tempera ture or pressure has increased beyond the proper range the flow rate should have decreased stop the operation and remove the cause before restarting the operation 10
- Management of water quality the plate type heat exchanger has a structure that does not permit dismantling and cleaning or replacing any parts please pay atten tion carefully to the quality of water to be used for the plate type heat exchanger in order to prevent corrosion and sticking of scale the water to be used for the plate type heat exchanger should have at least the quality as specified in the table below when using any corrosion prevention agent scale depressant agent etc such agent should have no corrosive features against stainless steel and copper 10
- Notes 1 the circle marks in the columns for corrosion or scale to develop 2 corrosion has a tendency to occur when water temperature is high 40 c or higher and if metals with no protective coating whatever are directly exposed to water it would be a good idea to take effective measures against corrosion such as adding a cor rosion inhibitor or deaeration treatment 3 in a condenser water circuit that uses a closed cooling tower the closed circuit circulating water and make up water must satisfy its water quality standards for the hot water system and passing water and make up water must satisfy those for the circulation type cooling water system 4 the supply water must be clean tap water industrial water or clean underground water do not use purified or softened water 5 the fifteen items in the table above represent typical causes of corrosion and scale 6 once through water may cause corrosion do not use once through water 10
- Steps to be taken when a freezing protection device was activated when the freezing protection device should be activated during operation remove the cause without fail before restarting the operation if the freezing protection device has been once acti vated a partial freezing has occurred if you restart the operation without removing the cause the plate type heat exchanger will be closed and the ice cannot be melted and in addition the freezing process will be repeated resulting in any damage to the plate type heat exchanger leading to any such accidents that the refrigerant starts leaking or water starts entering the refrigerant circuit 10
- The performance of a plate type heat exchanger may decline due to scale accumulation it may be damaged by freezing due to the drop of flow rate for this reason it is necessary to carry out programmed maintenances at a regular interval in order to prevent the scale from being generated 10
- Water quality standards for chilled water hot water and make up water 4 6 10
- When you stop operation during night or winter it is necessary to take measures to prevent water related circuits from natural freez ing in the area the ambient temperature drops below 0 c by water drain off keeping the circulation pump running warming up by a heater etc freezing of water related circuits may result in any damage to the plate type heat exchanger therefore please take appropriate measures depending on the circumstances of use refer to figure 7 1 example of piping 2 water inlet piping 3 strainer sold separately as an accessory 4 air discharge plug for joint use with cleaning port 5 cleaning device 6 strainer for pump 7 automatic air discharge valve 8 water outlet piping 9 joint use with water draining plug 10 plate type heat exchanger 11 outside unit 10
- 1 optional parts 11
- 2 power circuit and cable requirements 11
- 3 general 11
- English 6 11
- Field wiring 11
- 4 examples 12
- English 12
- How to the centralized interlock wiring 12
- Setting the interlock circuit and pump operation output 12
- 5 in case of a local setting 13
- Connect same size wiring to both sides 13
- Crimp style terminal 13
- Cup washer 13
- Cut out section 13
- English 8 13
- It is forbidden to connect two to one side 13
- It is forbidden to connect wiring of different size 13
- Power wire crimp style terminal 13
- 1 selection of piping material 14
- 2 protection against contamination when installing pipes 14
- 3 pipe connection 14
- English 14
- Refrigerant piping 14
- 4 connecting the refrigerant piping 15
- English 10 15
- If 2 m or less 15
- If 2 m or more 15
- Pattern 1 15
- Pattern 2 15
- Prohibited pattern 15
- 5 example of connection 16
- And bs unit is not required 16
- Below table is mentioned about the case of heat recovery sytem 3 piping suction gas hp lp gas and liquid pipes 16
- English 16
- In case of heat pump system 2 piping gas and liquid pipes select the pipe size from suction gas pipe for gas pipes and from liquid gas pipe for liquid pipes 16
- A b 2 c 2 d 2 e 2 f 2 g 2 h i j k l m n p 300 m 17
- English 12 17
- If available on the site use this size otherwise it can not be increased 17
- Indoor units 1 8 17
- Liquid and suction gas pipe size as follows 17
- Outside unit 17
- Refnet joint a g 17
- Required conditions example drawings 17
- The farthest indoor unit 8 the nearest indoor unit 1 17
- Φ 9 φ 12 φ 12 φ 15 φ 15 φ 19 φ 19 φ 22 φ 22 φ 25 φ 28 φ 31 φ 34 φ 38 17
- 6 air tight test and vacuum drying 18
- 7 pipe insulation 18
- 8 checking of device and installation conditions 18
- 9 additional refrigerant charge 18
- Charge with the tank upright 18
- Charge with the tank upside down 18
- English 18
- There is a siphon tube inside so there is no need to turn the tank upside down 18
- 1 air discharge 19
- 10 shutoff valve operation procedure 19
- 2 before turn on the power supply 19
- 3 check operation 19
- Checks after installation 19
- English 14 19
- Test run 19
- 4 check of normal operation 20
- English 20
- Caution for refrigerant leaks 21
- English 16 21
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