McQuay MWSC 010 Series Manual

Split water source heat pump and cooling only unit

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Split Water Source Heat Pump

And Cooling Only Unit

Models: MWSC 010 B/BR MWSC 025 B/BR

MWSC 015 B/BR MWSC 030 B/BR

MWSC 020 B/BR MWSC 050 B/BR

CMWSC -2006

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Summary of Contents for McQuay MWSC 010 Series

Page 1 CMWSC -2006 Split Water Source Heat Pump And Cooling Only Unit Models: MWSC 010 B/BR MWSC 025 B/BR MWSC 015 B/BR MWSC 030 B/BR MWSC 020 B/BR MWSC 050 B/BR...
Page 2: Table Of Contents
McQuay” is a registered trademark of McQuay International. All rights reserved throughout the world. © 2003 McQuay International “Bulletin illustration cover the general appearance of McQuay International products at the time of publication and we reserve the right to make change in design and construction at any time without notice”...
Page 3: Features
Features Save Energy This decentralized, year-round heating and cooling system consists of a two-pipe closed loop water circuit, through which non-refrigerated water circulates continuously throughout the building. Locating the piping within the building negates the need of for piping insulation. These systems achieve energy conservation by pumping heat from warm to cold spaces whenever they coexist anywhere within the building.
Page 4 Microcomputer remote control The microcomputer remote control has following functions • Five optional operation modes (heat/cool/dry/fan/auto). • Fan speed can be set at high, medium, low and automatic. • Sleep mode automatically increase set temperature since temperature is lower at night thus achieving healthy sleep.
Page 5: Specifi Cations
Speciﬁ cations Ceiling Concealed Heat Pump Models Indoor unit MCC010M MCC010MR MCC015M MCC015MR MCC020M MCC020MR MCC025M MCC025MR MCC030M MCC030MR MCC050M MCC050MR Model Outdoor unit MWSC010B MWSC010BR MWSC015B MWSC015BR MWSC020B MWSC020BR MWSC025B MWSC025BR MWSC030B MWSC030BR MWSC050B MWSC050BR Rated cooling capacity 2700 4200 5600 6900...
Page 6 Ceiling Exposed Heat Pump Models Indoor Unit MCM020D MCM020DR MCM030D MCM030DR MCM050D MCM050DR Model Outdoor Unit MWSC020B MWSC020BR MWSC030B MWSC030BR MWSC050B MWSC050BR Cooling Capacity(W) 5250 5250 8200 8200 12300 12300 Heating Capactiy(W) 5600 10500 14500 Power Source 220V~/50Hz 380V/3N~/50Hz Cooling 1495 1495 2350...
Page 7 Ceiling Cassette Heat Pump Models Indoor Unit MCK 020A MCK 020AR MCK 030A MCK 030AR MCK 050A MCK 050AR Cooling Capacity 5,600 8,200 12,300 Heating Capacity — 5,600 — 10,500 — 14,500 Φmm(in) Liquid Pipe 6.35 (1/4") 9.52 (3/8") 9.52 (3/8") Piping Size Φmm(in) Gas Pipe...
Page 8: Outlines And Dimensions
Outlines and Dimensions Indoor unit model: MCC 010M /MCC 010MR 4-10x20 unit: mm Indoor unit model: MCC 015M / MCC 015MR 4-10x20 unit: mm Page 7...
Page 9 Indoor unit model: MCC 020M / MCC 020MR MCC 025M / MCC 025MR 6-10x16 R3/4 1290 unit: mm Indoor unit model: MCC 030M /MCC 030MR 1315 6-10x16 R3/4 1298 1337 1640 unit: mm Page 8...
Page 10 Indoor unit model MCC 050M / MCC 050MR 1577 6-10x16 R3/4 1558 1597 1900 unit: mm Outdoor unit model: MWSC 010B/MWSC 010BR Piping size(mm) Model Liquid φ6.35 φ9.52 MWSC010B/BR 4- 17 Water pipe outlet Rc1/2 Water pipe inlet Rc1/2 Liquid pipe Gas pipe unit: mm Page 9...
Page 11 Outdoor unit model: MWSC 015B/MWSC 015BR Piping size(mm) Model Liquid φ6.35 φ12.7 MWSC025B/BR 4- 17 Water pipe outlet Rc1/2 Water pipe inlet Rc1/2 Liquid pipe Gas pipe unit: mm Outdoor unit model: MWSC 020B/MWSC 020BR Piping size(mm) Model Liquid φ9.52 φ15.88 MWSC025B/BR 4- 17...
Page 12 Outdoor unit model: MWSC 025B/MWSC 025BR Piping size(mm) Model Liquid φ9.52 φ15.88 MWSC025B/BR 4- 17 Water pipe outlet Rc1/2 Water pipe inlet Rc1/2 Liquid pipe Gas pipe unit: mm Outdoor unit model: MWSC 030B/MWSC 030BR Piping size(mm) Model Liquid φ9.52 φ15.88 MWSC030B/BR 4- 17...
Page 13 Outdoor unit model:MWSC 050B/MWSC 050BR Piping size(mm) Model Liquid φ9.52 φ19.05 MWSC050B/BR 4- 17 φ Water pipe outlet G3/4 Gas pipe Power line inlet port Liquid pipe Water pipe inlet G3/4 Page 12...
Page 14 Model : MCM 020 / 030 / 050 D MCM 020 / 030 / 050 DR PULL PULL PULL PULL PULL PULL PULL PULL MODEL MCM 020D/DR MCM 030D/DR MCM 050D/DR 1174 1174 1674 1082 1082 1582 1214 1214 1714 1379 Page 13...
Page 15 Model : MCK 020 / 030 / 050 A MCK 020 / 030 / 050 AR Note : Dimension in mm Model MCK020A/AR MCK030A/AR MCK050A/AR Page 14...
Page 16: Electrical Connection And Parameter
Electrical Connection and Parameter 1) Electrical connection Model: MCC 010M / MWSC 010B MCC 015M / MWSC 015B Indoor Outdoor terminal block terminal block The temperature sensor wire connecting outdoor unit with indoor unit Connecting cable The malfunction wire connecting outdoor unit with indoor unit 220-240V Power supply cable There must be a double pole...
Page 17 Model: MCC 030M / MWSC 030B Indoor Outdoor terminal block terminal block The temperature sensor wire connecting outdoor unit with indoor unit Connecting cable The malfunction wire connecting outdoor unit with indoor unit 220-240V Power supply cable 220-240V/1Ph /50Hz There must be a double pole switch with minimum 3mm contact gap in the installation circuit.
Page 18 Model: MCC 050M / MWSC 050B 1) Electrical connection Indoor Outdoor terminal block terminal block The temperature sensor wire connecting outdoor unit with indoor unit The malfunction wire connecting outdoor unit with indoor unit 220-240V Connecting cable Power supply cable 380-415V/3Ph-50Hz There must be a three pole switch with minimum 3mm contact gap in...
Page 19 1) Electrical connection Model: MCC 010MR / MWSC 010BR MCC 015MR / MWSC 015BR Indoor terminal Outdoor terminal block block The temperature sensor wire connecting outdoor unit with indoor unit Connecting cable The malfunction wire connecting outdoor unit with indoor unit 220-240V Power supply cable There must be a double pole switch...
Page 20 Model: MCC 030MR / MWSC 030BR Outdoor terminal Indoor terminal block block The temperature sensor wire connecting outdoor unit with indoor unit Connecting cable The malfunction wire connecting outdoor unit with indoor unit 220-240V Power supply cable 220-240V/1Ph/50Hz There must be a double pole switch with minimum 3mm contact gap in the installation circuit.
Page 21 Model: MCC 050MR / MWSC 050BR 1) Electrical connection Indoor terminal Outdoor terminal block block The temperature sensor wire connecting outdoor unit with indoor unit The malfunction wire connecting outdoor unit with indoor unit 220-240V Connecting cable Power supply cable 380-415V/3Ph/50Hz There must be a three pole switch with minimum 3mm contact gap in the...
Page 22 Model : MCK 020A/ MWSC 020B MCK 030A/ MWSC 030B MCM 020D/ MWSC 020B MCM 030D / MWSC 030B 1) Electrical connection Indoor unit Outdoor unit Terminal block Terminal block Connecting cable COMP COMP There must be a double pole switch with minimum 3 mm contact Power supply wire gap in the fixed installation circuit.
Page 23 Model : MCK 050A / MWSC 050B MCM 050D / MWSC 050B 1) Electrical connection Indoor unit Outdoor unit Terminal block Terminal block Connecting cable COMP COMP Power supply wire 380-415V/3Ph/50Hz There must be a three pole switch with minimum 3 mm contact gap in the fixed installation circuit.
Page 24 Model : MCK 020AR / MWSC 020BR MCK 030AR / MWSC 030BR MCM 020DR / MWSC 020BR MCM 030DR / MWSC 030BR 1) Electrical connection Indoor unit Outdoor unit Terminal block Terminal block Connecting cable COMP COMP There must be a double pole switch with minimum 3 mm Power supply wire contact gap in the fixed...
Page 25 Model : MCK 050AR / MWSC 050BR MCM 050DR / MWSC 050BR Indoor unit Outdoor unit Terminal block Terminal block Connecting cable COMP COMP Power supply wire 380-415V/3Ph/50Hz There must be a three pole switch with minimum 3 mm contact gap in the fixed installation circuit.
Page 26: Installation Of Indoor Unit
Installation Of Indoor Unit Installation of MCC unit 1) Preliminary site survey Electrical supply and installation is to conform to local authorityʼs codes and regulations (e.g. National Electricity Board), Voltage supply ﬂ uctuation must not exceed ± 10% voltage. Voltage supply lines must be independent of welding transformers which can cause high voltage ﬂ...
Page 27 Item Description of Figure 2 Indoor unit Flexible connector or plenum box Air-supplying adaptor Round duct Air-distribution adaptor Air-distribution box Model MCC010 MCC015 MCC020 MCC025 MCC030 MCC050 M/MR M/MR M/MR M/MR M/MR M/MR Recommended Length (m) Area cooling space (m 15~25 25~35 40~60...
Page 28 4) Others ó Each supply and return air must be ﬁ xed with supporting frame onto the ceiling of concrete prefabricate. The duct joint section should be sealed with glue. ó Returning air-box is suggested to be more than 150mm away from the side wall starting from outer edge of box. ó...
Page 29 Installation of MCK unit Preliminary site survey ó Electrical supply and installation is to conform to local authorityʼs (e.g. National Electrical Board) codes and regulations. ó Voltage supply ﬂ uctuation must not exceed ±10% of rated voltage. Electricity supply lines must be independent of welding transformers, which can cause high supply ﬂ...
Page 30 Unit Installation ó Measure and mark the position for the hanging rod. Drill the hole for the angle nut on the ceiling and ﬁ x the handing rod. ó The installation template is extended according to temperature and humidity. Check on dimensions in used. ó...
Page 31 Drain Piping Work ó Drainpipe must be in downward gradient for smooth drainage. ó Avoid the drainpipe in up and down slope to prevent reversed water ﬂ ow. ó During the drain piping connection, be careful not to exert extra force on the drain connector at indoor unit. ó...
Page 32 Note : Install the front frame panel ﬁ rmly to prevent cool air leakage which will cause condensation and water dripping Indoor Unit Cool Cool Air leak Air leak Ceiling Board Ceiling Board Panel Good Installation Bad Installation Air intake grille installation ó...
Page 33 Installation of MCM unit Preliminary site survey ó Electrical supply and installation shall conform to the local authority (e.g. National Electrical Board). ó Voltage supply ﬂ uctuation must not exceed ± 10% of the rated voltage. Electricity supply lines must be independent of welding transformers which can cause high supply ﬂ...
Page 34 Please ensure that following steps are taken: ó Check the gradient for drainage ﬂ ow as recommended in Figure B. ó Provide clearance for easy servicing and optimal air ﬂ ow as shown in Figure C. FIGURE B PULL PULL PULL PULL ó...
Page 35 SEMI-ENCLOSE SCISSOR ó In case the unit is to be half-recessed into a false ceiling, please check that the unit is wellaligned. ó Provide the installation space as shown in ﬁ gure D. FIGURE D 10. 0mm TOP PANEL OF UNIT CEILING BOARD 10mm STEP 1:...
Page 36 STEP 2: Position the hanger rods as shown in Figure B, and install the hanger bracket. See Figure F. FIGURE F STEP 3: Hang up the unit and tighten the bolt. After completing the piping and draining pipe, install back the grille and panel. See Figure G.
Page 37: Installation Of Outdoor Unit
Installation Of Outdoor Unit The location of the outdoor unit is very ﬂ exible, it can be installed in ceiling, stairs, toilet and out wall or other places. In order to operate the unit reliable, precaution steps: 1) Leave enough space for service person to perform maintenance of repair and provide sufﬁ cient room to make water, electrical connections.
Page 38 Refrigerant Piping Work Refrigerant piping is important in particular. Refrigeration cycle of the split air conditioner is realized by the perfect piping work. Piping length and elevation If the piping is too long, both the capacity and reliability of unit will drop. As the number of bends increase, resistance to ﬂ...
Page 39 Piping Connection 1) Do not use contaminated or damaged copper tubing. If any piping, evaporator or condenser had been exposed or had been opened for 15 seconds or more, then vacuum and purge with ﬁ eld supplied refrigerant. Generally, do not remove plastic, rubber plugs and brass nuts from the valves, ﬁ...
Page 40 5) If systemʼs refrigerant is leaked, recharge refrigerant referring to following diagram. Refrigerant pipe Indoor unit Outdoor unit Low pressure guage High pressure guage Vacuum pump Flexible pipe Charge set Check valve Flexible pipe Page 39...
Page 41 Piping Works & Flaring Technique ó Do not use contaminated or damaged copper tubing. If any pipings, evaporator or condenser had been exposed or had been opened for 15 seconds or more, then vacuum and purge with ﬁ eld supplied refrigerant. Generally, do not remove plastic, rubber plugs and brass nuts from the valves, ﬁ...
Page 42 Piping Work & Flaring Technique TUBE D A (mm) Inch Imperial Rigid 1/4” 6.35 3/8” 9.52 1/2” 12.70 5/8” 15.88 3/4” 19.05 Piping Connection To The Units ó Align the center of the piping and tighten the ﬂ are nut sufﬁ ciently with ﬁ ngers. ó...
Page 43: Vacuuming And Charging Method
Vacuuming And Charging Method Purging the piping and the indoor unit The outdoor unit is equipped by two 3-way refrigerating connecting valves. The suction valve is the larger one whereas the smaller one is the liquid valve. Both valves are supplied with service port valve for connection to a manometer.
Page 44 Additional Charge The refrigerant is pre-charged in the outdoor unit. If the piping length is less than 5m, then additional charge after vacuuming is not necessary. If the piping length is more than 5m, then use the additional charge valve as in the table below.
Page 45: Overall Checking
Overall Checking Ensure that: ó The unit has been mounted solidly and rigid in position. ó The piping and connections are leak-proof after the charging. ó Proper wiring has been installed. Drainage check ó Pour some water into the left side of the drain pan (the drainage is at the right side of the unit). Test run: ó...
Page 46: Remote Control Operation Guide
Remote Control Operation Guide Wireless Remote Control AUTO TIMER ON MODE TIMER OFF SLEEP SWING 1. Transmission source ó Source where the signal will be transmitted from. 2. Temperature setting ó Set the desired room temperature ó Press button to increase or decrease the set temperature. Setting range are between 16°C to 30°C (Optional setting from 20°C to 30°C ) 3.
Page 47 Wired Remote Control 1. “ON/OFF” switch ó Press to start the air conditioner unit. ó Press again to stop the unit. 2. Temperature setting ó Set the desired room temperature. ó Press button to increase or decrease the set temperature. Setting range are between 16 °C to 30 °C (60 oF to 80 3.
Page 48: Standard Operation Conditions
Standard Operation Conditions Temperature Ts (°C) Th (°C) Minimum indoor air temperature 19.4 13.9 Maximum indoor air temperature 26.7 19.4 Minimum outdoor air temperature 19.4 13.9 Maximum outdoor air temperature Ts : Dry bulb temperature. Th : Wet bulb temperature. Start-up Open all valves to full open position and turn on power to the conditioner.
Page 49: Servicing And Maintenance
Servicing And Maintenance Warning Disconnect from the main supply before servicing the air conditioner unit. MAINTENANCE PROCEDURES SERVICE PARTS PERIOD 1.Remove any dust adhered on the ﬁ lter by using a vacuum cleaner or wash in lukewarm water (below 40 °C) with At least once every 2 neutral cleaning detergent.
Page 50 Maintenance 1. Normal maintenance on all conditioners is generally limited to ﬁ lter changes. Lubrication of the fan motor is not required but may be performed to extend motor life. Use sae-20 non-detergent electric motor oil. 2. Filter changes are required at regular intervals. The time period between changes will depend upon the project requirements.
Page 51: Cleaning & Flushing System
ﬂ ow regulators, etc. Additionally, the heat exchanger may be clogged which reduces compressor service life or causes premature failure. A System Saver® from McQuay International should be employed to continuously remove solids as the system operates. Contact your local representative for further information on this device.
Page 52: Troubleshooting
Troubleshooting When any malfunction of the conditioner unit is noted, immediately switch off the power supply to the unit. Check the following fault conditions and causes for some simple trouble shooting tips. FAULT POSSIBLE CAUSES 1. The compressor does not start operation after 3 ó...
Page 53 The LED indicator on the control panel: MODE SLEEP Status Analysis AUTO HIGH COOL HEAT ONLY Cooling ONLY Auto fan cooling Dry mode ONLY Heating ONLY Auto fan heating ONLY Normal ONLY Auto fan ONLY FLASH Auto cooling ONLY FLASH Auto fan and auto cooling ONLY FLASH...

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