McQuay MCW 200 C User manual

CMCW - 2004
Ceiling Concealed Chilled
Water Fan Coil Unit
Models: MCW 200 C / MCW 200 H
 MCW 300 C / MCW 300 H
 MCW 400 C / MCW 400 H
 MCW 600 C / MCW 600 H
 MCW 800 C / MCW 800 H
 MCW 1000 C / MCW 1000H
 MCW 1200 C / MCW 1200H

Contents
General Information ..................................................................................................... 2
Part Descriptions .......................................................................................................... 3
Features ................................................................................................................... 4 - 5
Specifications ........................................................................................................ 6 - 19
Sound Pressure Level ......................................................................................... 20 - 22
Performance Table ............................................................................................... 23 - 24
Outlines and Dimensions ........................................................................................... 25
Installations .......................................................................................................... 26 - 28
Wiring Diagrams .................................................................................................. 29 - 35
Optional Parts ...................................................................................................... 36 - 38
Connection Diagram ................................................................................................... 39
Note: Installation and maintenance are to be performed only by qualified personnel who are
familiar with local codes and regulations, and experienced with this type of equipment,
Caution: Sharp edges and coil surfaces are a potential injury hazard. Avoid contact with them.
Warning: Moving machinery and electrical power hazards. May cause severe personal injury or death.
Disconnect and lock off power before servicing equipment.
"McQuay" is a registered trademark of McQuay International. All rights reserved throughout the world.
2003 McQuay International
"Bulletin illustrations cover the general appearance of McQuay International products at the time of publication
and we reserve the right to make changes in design and construction at any time without notice."
Page 1

General Information
This manual has been prepared as guidance for installing and maintaining the McQuay fan coil unit.
McQuay has produced a quality product that will effectively meet your application. However, proper
installation and maintenance procedures must be followed to realize the full capability and life of the unit.
Nomenclature
MCW 200 C D 0 R B F A/N AA - E
Export
Description of Products:
AA – Standard Drain Pan
AF – Extended Drain Pan
AG – Extended Drain Pan + 2 Way Valve
AH – Extended Drain Pan + 3 Way Valve
AI – Standard Drain Pan + 2 Way Valve
AJ – Standard Drain Pan + 3 Way Valve
AK – Standard Drain Pan + Controller
AL – Extended Drain Pan + Controller
AM – Extended Drain Pan + 2 Way Valve + Controller
AN – Extended Drain Pan + 3 Way Valve + Controller
AO – Standard drain Pan + 2 Way Valve + Controller
AP – Standard Drain Pan + 3 Way Valve + Controller
Power Supply: A – 220V/1P/50Hz
K – 115V/1P/60Hz
N – 208-230V/1P/60Hz
Filter (Omitted if without filter)
Return air plenum: B – Plenum back inlet (Standard)
D – Plenum bottom inlet
Pipe connection: R – Right-hand (Standard)
L – Left-hand
External Static Pressure: 0: 0Pa 3: 30Pa
6: 60Pa 8: 80Pa
Electric heater
Design Series: “C” is for 2 pipes system
“H” is for 4 pipes system
Nominal Air Flow (CFM)
McQuay Horizontal Ceiling Concealed Fan Coil Unit
Page 2

Part Description
High Efficiency Coil
Top Panel
Fibre Glass Insulation
Water Connection
Centrifugal Fan
Motor Drain Guide
Condensate Drain Pan
Terminal Box
Page 3

Features
Extra Low Noise Design
Enlarged fan wheels design allows lower fan RPM selection for the same external static pressure and airflow
requirement. Thereby, noise level is significantly reduced.
Flexibility
Water connection side can be changed easily in the field by changing positions of the fan-motor assembly or
the supply air flange assembly. Fan-motor assembly is not cased allowing back return or bottom return
installations.
High Efficiency Heat Exchanger
A boundary layer film of air adhering to the fin surface will insulate the fin surface and severely reduces the
heat exchange efficiency. MCQUAY slit fin design eliminates this boundary layer of air and creates
continuous turbulence for best heat exchange efficiency.
Variable External Static Pressure
Four types of external static pressure are available for every unit : 0Pa, 30Pa, 60Pa, 80Pa.
Compact Design
This series of fan coil units are designed to suit most ceiling concealed installations. Unit height is only 251
mm across the entire model range. The feature also maximizes provisions for drain fall requirements.
Auxiliary Electric Heater
The heating source of McQuay fan coil unit MCW200CD~MCW1200CD is PTC (Positive Temperature
Coefficient) heater.
1.Safety
A fuse (135°C, 10A) is connected in each PTC main wiring circuit. A thermostat (75°C, 10A) and another
fuse (92°C, 10A) are connected in the control wiring circuit. If the fan of the unit is not running, the
thermostat or fuse will cut off the power of the unit. In addition, the surface of the PTC heater is without
electric power. So the fan coil unit is safe enough.
2.Save energy
Quick heating spread, strong heating capacity, steady performance and save energy are characters of
PTC heater.
3.Easy to install and maintain
Need not remove the air duct when maintain the electric components of the units. Please refer to Figure 1
for installation and maintenance.
Page 4

Caution
1. The temperature of the surface of PTC heater may be over 200°C if the power of unit is on but the fan of
the unit is not running. Don’t touch the unit at this time!
2. The starting current of the unit is more than its working current. It should be considered both the working
current and starting current while choosing the fuse.
3. When the MCW200CD~MCW1200CD fan coil unit with PTC heater is running, ENSURE there is no
obstructions to air flow into or out of the unit.
Figure 1
Electric Heating Power (kW)
Unit Size Power Supply kW kW kW kW kW kW kW kW kW kW kW kW
220V-240V~/50Hz 0.5 1.0 1.5 2.0 - - - - - - - -
MCW200CD
115V~/60Hz 0.5 1.0 1.5 2.0 - - - - - - - -
220V-240V~/50Hz - 1.0 1.5 2.0 2.5 3.0 - - - - - -
MCW300CD
115V~/60Hz - 1.0 1.5 2.0 2.5 3.0 3.5 4.0 - - - -
220V-240V~/50Hz - - - 2.0 2.5 3.0 3.5 - - - - -
MCW400CD
115V~/60Hz - - - 2.0 2.5 3.0 3.5 4.0 - - - -
380V/3N~/50Hz - - - - 2.5 3.0 3.5 4.0 5.0 - - -
MCW600CD
115V~/60Hz - - - - 2.5 3.0 3.5 4.0 5.0 6.0 - -
380V/3N~/50Hz - - - - - 3.0 3.5 4.0 5.0 - - -
MCW800CD
115V~/60Hz - - - - - 3.0 3.5 4.0 5.0 6.0 - -
380V/3N~/50Hz - - - - - 3.0 3.5 4.0 5.0 - - -
MCW1000CD
115V~/60Hz - - - - - 3.0 3.5 4.0 5.0 6.0 - -
380V/3N~/50Hz - - - - - 3.0 3.5 4.0 5.0 6.0 7.0 8.0
MCW1200CD
115V~/60Hz - - - - - 3.0 3.5 4.0 5.0 6.0 7.0 8.0
Page 5

Specifications
2 Pipes System Specification ( 220V ~ 240 V- 50 Hz)
Model MCW200C MCW300C MCW400C MCW600C MCW800C MCW1000C MCW1200C
High m3/h 410 550 770 1060 1450 1640 2070
Medium m3/h 340 420 520 850 1180 1360 1760
Air flow
Low m3/h 230 350 390 710 920 1100 1510
W 1500 2300 2850 4400 5410 6240 8010
Total Btu/h 5110 7840 9720 15010 18450 21290 27330
W 3680 5200 7450 10060 13200 14900 19370
Cooling
Capacity
Sensible Btu/h 12550 17740 25420 34320 45040 50840 66090
Heating Capacity W 2240 3300 4450 6220 7900 9120 10810
Water Flow l/min(m3/hr) 7(0.41) 10(0.57) 13(0.78) 19(1.08) 24(1.39) 26(1.56) 32(1.92)
Head Loss kPa 14.6 12.0 21.6 38.2 18.4 21.0 32.7
Fan
Type Centrifugal fan (forward-curved galvanized steel fan wheels)
Number of Fans 1 1 2 2 3 3 4
Fan Housing Galvanized steel
Coil
Type Seamless copper tube mechanically bonded to configurated aluminium fin
Routine Testing Pressure Pressure test: 3.0MPa for 1 minute; leakage test: 1.6MPa for 5 minutes
Motor
Type Split-capacitor motor with ball bearing
Number of Motors 1 1 1 1 2 2 2
Rated Voltage 220-240V~
Rated Frequency 50Hz
0 Pa W 22 33 45 65 100 105 133
Rated Input 30 Pa W 27 58 74 120 165 177 237
power 60 Pa
W 41 65 83 140 197 215 280
80 Pa W 44 79 85 148 200 220 283
Insulation Class E
Pipe Connection Rc3/4
Drain Pipe R 3/4
Length mm 714 884 1014 1214 1464 1564 1824
Width mm 490 (without Plenum) / 556 ( with Plenum)
Dimension
Height mm 251
Net Weight kg 19 22 26 30 41 44 46
Net Weight (Plenum) kg 20 23 28 33 44 48 50
Conditions:
Cooling Capacity: Entering air temp.27℃(DB*),19.5(WB**); Entering water temp. 7ºC, Leaving water temp. 12ºC
Heating Capacity: Entering air temp. 21℃(DB); Entering water temp. 60ºC, the same amount of water flow with cooling.
Air Flow: Under dry coil conditions, fan speed high weight: Not include packing
* DB: Dry Bulb **WB: Wet Bulb
Note: The suggested range of the entering water temperature is 5℃-10℃while cooling. To make sure the unit run normally for long
time, the entering water temperature should not be more than 60℃. Water pressure of the unit should not be more than 1.3MPa.
Page 6

2 Pipes System Specification ( 115 V- 60 Hz)
Model MCW200C MCW300C MCW400C MCW600C MCW800C MCW1000C MCW1200C
High m3/h 408 595 765 1138 1427 1699 2175
Medium m3/h 306 459 663 901 1155 1308 1750
Air flow
Low m3/h 204 340 510 731 952 1054 1444
W 1500 2300 2850 4400 5410 6240 8010
Total Btu/h 5110 7840 9720 15010 18450 21290 27330
W 3680 5200 7450 10060 13200 14900 19370
Cooling
Capacity
Sensible Btu/h 12550 17740 25420 34320 45040 50840 66090
Heating Capacity W 2240 3300 4450 6220 7900 9120 10810
Water Flow l/min(m3/hr) 7(0.41) 10(0.57) 13(0.78) 19(1.08) 24(1.39) 26(1.56) 32(1.92)
Head Loss kPa 14.6 12.0 21.6 38.2 18.4 21.0 32.7
Fan
Type Centrifugal fan (forward-curved galvanized steel fan wheels)
Number of Fans 1 1 2 2 3 3 4
Fan Housing Galvanized steel
Coil
Type Seamless copper tube mechanically bonded to configurated aluminium fin
Routine Testing Pressure Pressure test: 3.0MPa for 1 minute; leakage test: 1.6MPa for 5 minutes
Motor
Type Split-capacitor motor with ball bearing
Number of Motors 1 1 1 1 2 2 2
Rated Voltage 115V~
Rated Frequency 60Hz
Rated Input 60 Pa W 63 97 111 183 263 281 357
power 80 Pa W 67 104 117 187 265 285 357
Insulation Class E
Pipe Connection Rc3/4
Drain Pipe R 3/4
Length mm 714 884 1014 1214 1464 1564 1824
Width mm 490 (without Plenum) / 556 ( with Plenum)
Dimension
Height mm 251
Net Weight kg 19 22 26 30 41 44 46
Net Weight (Plenum) kg 20 23 28 33 44 48 50
Conditions:
Cooling Capacity: Entering air temp.26.7DB*),19.4(WB**); Entering water temp. 7℃, Leaving water temp. 12℃
Heating Capacity: Entering air temp. 21℃(DB); Entering water temp. 60℃, the same amount of water flow with cooling.
Air Flow: Under dry coil conditions, fan speed high weight: Not include packing
* DB: Dry Bulb **WB: Wet Bulb
Note: The suggested range of the entering water temperature is 5℃-10℃while cooling. To make sure the unit run normally for long
time, the entering water temperature should not be more than 60℃. Water pressure of the unit should not be more than 1.3MPa
Page 7

2 Pipes System Specification ( 208V ~ 230 V- 60 Hz)
Model MCW200C MCW300C MCW400C MCW600C MCW800C MCW1000C MCW1200C
High m3/h 408 595 765 1138 1427 1699 2175
Medium m3/h 306 459 663 901 1155 1308 1750
Air flow
Low m3/h 204 340 510 731 952 1054 1444
W 2240 3300 4450 6220 7900 9120 10810
Total
Btu/h 7640 11260 15180 21220 26950 31110 36880
W 1500 2300 2850 4400 5410 6240 8010
Cooling
Capacity
Sensible
Btu/h 5110 7840 9720 15010 18450 21290 27330
Heating Capacity W 3680 5200 7450 10060 13200 14900 19370
Water Flow l/min(m3/hr) 7(0.41) 10(0.57) 13(0.78) 19(1.08) 24(1.39) 26(1.56) 32(1.92)
Head Loss kPa 14.6 12 21.6 38.2 18.4 21 32.7
Fan
Type Centrifugal fan (forward-curved galvanized steel fan wheels)
Number of Fans 1 1 2 2 3 3 4
Fan Housing Galvanized steel
Coil
Type Seamless copper tube mechanically bonded to configurated aluminium fin
Routine Testing Pressure Pressure test: 3.0MPa for 1 minute; leakage test: 1.6MPa for 5 minutes
Motor
Type Split-capacitor motor with ball bearing
Number of Motors 1 1 1 1 2 2 2
Rated Voltage 208~230V~
Rated Frequency 60Hz
Rated Input 60Pa W 77 97 122 174 246 274 336
power 80Pa
W 81 102 130 183 256 281 356
Insulation Class E
Pipe Connection Rc3/4
Drain Pipe R 3/4
Length mm 714 884 1014 1214 1464 1564 1824
Width mm 490 (without Plenum) / 556 ( with Plenum)
Dimension
Height mm 251
Net Weight kg 19 22 26 30 41 44 46
Net Weight (Plenum) kg 20 23 28 33 44 48 50
Conditions:
Cooling Capacity: Entering air temp.26.7(DB*),19.4(WB**); Entering water temp. 7℃, Leaving water temp. 12℃
Heating Capacity: Entering air temp. 21℃(DB); Entering water temp. 60℃, the same amount of water flow with cooling.
Air Flow: Under dry coil conditions, fan speed high weight: Not include packing
* DB: Dry Bulb **WB: Wet Bulb
Note: The suggested range of the entering water temperature is 5℃-10℃while cooling. To make sure the unit run normally for long
time, the entering water temperature should not be more than 60℃. Water pressure of the unit should not be more than 1.3MPa.
Page 8

4 Pipes System Specification (220V ~ 240V – 50 Hz)
Model MCW200H MCW300H MCW400H MCW600H MCW800H MCW1000H MCW1200H
High m3/h 408 595 765 1138 1427 1699 2175
Medium m3/h 340 510 680 1104 1240 1495 1869
Air flow
Low m3/h 272 340 595 765 1037 1087 1529
W 2260 3360 4240 6520 8170 9190 11910
Total
Btu/h 7710 11460 14460 22240 27870 31350 40630
W 1500 2300 2850 4400 5410 6240 8010
Cooling
Capacity Sensibl
e Btu/h 5110 7840 9720 15010 18450 21290 27330
Heating Capacity W 3570 5040 7230 9760 12800 14450 18790
1-Row Heating Capacity W 1410 2300 3350 4430 5200 7010 8570
3-Row l/min 7(0.41) 10(0.57) 13(0.78) 19(1.08) 24(1.39) 26(1.56) 32(1.92)
Water Flow 1-Row (m3/hr) 4(0.24) 4(0.24) 4(0.24) 4(0.24) 4(0.24) 9(0.50) 9(0.50)
3-Row 16 13 22 47 33 26 45
Head Loss 1-Row kPa 8 8 15 17 21 18 20
Fan
Type Centrifugal fan (forward-curved galvanized steel fan wheels)
Number of Fans 1 1 2 2 3 3 4
Fan Housing Galvanized steel 0.5mm
Coil
Type Seamless copper tube mechanically bonded to configurated aluminium fin
Routine Testing Pressure .
Motor
Type Split-capacitor motor with ball bearing
Number of Motors 1 1 1 1 2 2 2
Rated Voltage 220-240V~
Rated Frequency 50Hz
Rated Input 60Pa W 55 77 95 155 207 221 285
power 80Pa
W 59 84 101 159 213 225 287
Insulation Class E
Pipe Connection Rc3/4
Drain Pipe R 3/4
Length mm 714 884 1014 1214 1464 1564 1824
Width mm 490 (without Plenum) / 556 ( with Plenum)
Dimension
Height mm 251
Net Weight kg 20 24 28 32 44 47 49
Net Weight (Plenum) kg 22 27 31 36 48 52 56
Conditions:
Cooling Capacity: Entering air temp.27℃(DB*),19.5℃(WB**); Entering water temp. 7℃, Leaving water temp. 12℃
Heating Capacity: Entering air temp. 21℃(DB); Entering water temp. 60℃, the same amount of water flow with cooling.
Air Flow: Under dry coil conditions, fan speed high weight: Not include packing
* DB: Dry Bulb **WB: Wet Bulb
Page 9