McQuay MCW200D, MCW800D, MCW900D, MCW400D, MCW1000D Technical Manual

CEILING CONCEALED
Chilled Water Fan Coil Unit

Models: MCW200D MCW800D
MCW300D MCW900D
MCW400D MCW1000D
MCW500D MCW1200D
MCW600D MCW1400D

Technical Manual

Engineered for flexibility and performance.

TM

MCWD-2007

1

Nomenclature.............................................................................................................................. 2

Main Features .............................................................................................................................3

Specications ............................................................................................................................. 4

Sound Pressure Level ................................................................................................................ 6

Performance Data ....................................................................................................................... 7

Air Flow vs ESP Table ................................................................................................................ 8

Operating Limits ......................................................................................................................... 9

Water Flow vs Pressure Drop Chart ....................................................................................... 10

Outlines and Dimensions ........................................................................................................ 11

Wiring Diagrams ....................................................................................................................... 12

Installation .................................................................................................................................13

Exploded-view & Part List .......................................................................................................15

Guide Specications ................................................................................................................ 17

Contents

“McQuay” is a registered trademark of McQuay International. All rights reserved throughout the world.

© 2007 McQuay International.

Bulletin illustrations cover the general appearance of McQuay International products at the time of publication. We reserve the right to change

design and construction specications at any time without notice.

Note: Installation and maintenance are to be performed only by qualied 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 hazard may cause severe personal injury or death.

Disconnect and lock off power before servicing equipment.

2

Nomenclature

MCW 200 D- 8 R X F-A A F1 - E

Export

1-100mm Extended Drain Pan
2-200mm Extended Drain Pan
Omitted for Standard Drain Pan

Description of Products:
A-Standard Drain Pan
F-Extended Drain Pan
G-Extended Drain pan+2Way Valve
H-Extended Drain Pan+3Way Valve
I-Standard Drain Pan+2Way Valve
J-Standard Drain Pan+3Way Valve
K-Standard Drain Pan+Controller
L-Extended Drain Pan+Controller
M-Extended Drain Pan+2 Way Valve+Controller
N-Extended Drain Pan+3 Way Valve+Controller
O-Standard Drain Pan+2 Way Valve+Controller
P-Standard Drain Pan+3 Way Valve+Controller

Material of Drain Pan
A-Standard Material
S-Stainless Steel

Power Supply: A-220V/1PH/50Hz

With Filter

Back Rerurn Air Plenum With Bottom Removal Filter

Pipe Connection: R-Right Hand

L-Left Hand(Facing Air Flow)

75Pa External Static Pressure

Design Series: D-4 Rows and 2 Pipes

Nominal Air Flow(CFM)

McQuay Horizontal Ceiling concealed Fan Coil Unit

3

Main Features

General

The new MCW-D FCUs are specically designed to satisfy high cooling capacity application requirement. They

represent one of the most cost effective solutions to provide a comfortable environment for both commercial and
residential applications. Their quiet operation, compact dimensions and particularly low height, make units ideal
for ceiling concealed installation even in buildings with narrow ceiling spaces. Units are standard supplied with

soundproofed suction plenum and air lter. Centrifugal fans, with forward-curved blades, are statically and dynamically

balanced and driven by single-phase motors with three speeds.They feature elegant design, advanced structure,

high efciency, low noise, convenient installation and low maintenance. They are widely used in houses, shopping
malls, hospitals and ofce etc.

Higher Cooling Capacity in High Delta T Application

These units are particularly suitable for high External Static Pressure and high Delta T(chilled water temperature
difference) applications. They can delivery more cooling capacity in high Delta T conditions with the specially designed
fans & motors, coils and excellent combination of them.

Low Chilled Water Pressure Drop

In order to meet even the most demanding customer requirements, the new FCUs adopt the most reasonable
and optimization water circuit design and utilize the national level thermal test room to guarantee both the perfect
performance and a low chilled water pressure drop.

Extra High Air Flow Volume at High ESP

These units can supply more air ow at high ESP. 10 models of MCW-D cover an air ow range from 340 to 2380CMH

at medium speed with ESP of 75Pa in wet coil condition.

Air Filter

All units can provide up to one-inch thick washable lters. Filters are held by a removable metal strip and can be

easily pulled out from the bottom for cleaning or replacement.

High Efciency Heat Exchanger

A boundary layer lm of air adhering to the n surface will insulate the n surface and severely reduces the heat
exchange efciency. McQuay slit n design eliminates this boundary layer of air and creates continuous turbulence
for best heat exchange efciency.

Flexibility

Units are available with left or right hand water connections, which can be easily switched in the eld by changing the
positions of the fan-motor assembly and the supply air ange assembly if required.

Compact Design

The low height design makes this fan coil unit series ideally suited for the tight ceiling concealed installation

Low Noise Design

Enlarged fan wheels design allows lower fan RPM selection for the same external static pressure and airow
requirement. Thereby noise level is signicantly reduced.

4

Specications

General Data

MODEL 200D 300D 400D 500D 600D 800D 900D 1000D 1200D 1400D

AIR FLOW

HIGH

m3/h 332 606 757 894 1154 1446 1622 2115 2455 2748

CFM 195 356 445 526 679 851 954 1244 1444 1616

MEDIUM

m3/h 311 527 709 859 1120 1408 1538 1980 2217 2576

CFM 183 310 417 505 659 828 905 1165 1304 1515

LOW

m3/h 237 331 501 616 770 1096 1201 1465 1569 1870

CFM 139 195 295 362 453 645 706 862 923 1100

TOTAL COOLING CAPACITY

W 2044 3350 4402 5003 6300 8087 9022 10808 11939 13523

BTU/h 6974 11430 15020 17070 21496 27593 30783 36877 40736 46140

SENSIBLE COOLING CAPACITY

W 1224 2150 2897 3450 4502 5468 6428 7710 8898 10084

BTU/h 4176 7336 9885 11771 15361 18657 21932 26307 30360 34407

WATER FLOW RATE

m3/h 0.223 0.341 0.439 0.499 0.632 0.803 0.889 1.067 1.223 1.368

USGPM 0.981 1.500 1.932 2.196 2.781 3.533 3.912 4.695 5.381 6.019

WATER PRESSURE DROP
(COOLING)

KPa 5.7 12.0 24.6 11.1 18.2 15.8 19.9 29.0 22.2 30.3

PSI 0.827 1.740 3.567 1.610 2.639 2.291 2.886 4.205 3.219 4.394

EXTERNAL STATIC PRESSURE

Pa 75 75 75 75 75 75 75 75 75 75

in.wg 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3

RATED POWER INPUT W 74 98 107 123 167 268 275 304 501 555

SOUND PRESSURE LEVEL DB(A) 42.9 43.1 45.9 46.2 47.9 50.0 48.8 49.1 53.3 53.0

CONDENSATE DRAIN PIPE R3/4

DIMENSION

LENGTH mm 714 934 1014 1114 1214 1464 1564 1664 1464 1664

WIDTH mm 534 534 534 534 534 534 534 534 599 599

HEIGHT mm 251 251 251 251 251 251 251 251 295 295

PACKING DIMENSION

LENGTH mm 737 957 1037 1137 1237 1487 1587 1687 1487 1687

WIDTH mm 553 553 553 553 553 553 553 553 618 618

HEIGHT mm 276 276 276 276 276 276 276 276 321 321

NET WEIGHT

kg 21 25 29 31 33 44 46 49 53 57

lb 46.2 55 63.8 68.2 72.6 96.8 101.2 107.8 116.6 125.4

GROSS WEIGHT

kg 23 28 32 34 37 48 51 54 58 63

lb 50.6 61.6 70.4 74.8 81.4 105.6 112.2 118.8 127.6 138.6

OPERATING WEIGHT kg 22 26 31 33 35 46 49 52 56 61

Notes:

1. ALL SPECIFICATIONS ARE SUBJECTED TO CHANGE BY THE MANUFACTURER WITHOUT PRIOR NOTICE.

2. ALL THE UNITS ARE BEING TESTED UNDER FOLLOWING CONDITION:
a) COOLING: 27°C DB/19.5°C WB INDOOR AND WATER INLET 7°C OUTLET 12°C
b) HEATING: 21°C DB INDOOR AND WATER 60°C INLET.WATER FLOW:SAME WITH COOLING CONDITION.

3. THE NOMINAL AIR FLOW, POWER INPUT AND CAPACITY TEST IS UNDER THE POWER SUPPLY OF 220V/1PH/50HZ.

5

COMPONENTS DATA

MODEL

200D 300D 400D 500D 600D 800D 900D 1000D 1200D 1400D

FAN

TYPE CENTRIFUGAL (BLADE: FORWARD-CURVED)

QUANTITY 1 2 3 4 3

MATERIAL GALVANIZED STEEL

DRIVE DIRECT DRIVE

DIAMETER

mm 160 200

in 6.299 7.875

LENGTH

mm 200 160 200 160 190

in 7.874 6.299 7.874 6.299 7.480

MOTOR

TYPE Split-capacitoR motoR with ball beaRing

NUMBER OF MOTORS 1 2

POWER SUPPLY 220-240V/1/50

IP/INSULATION CLASS IP20/Class B

COIL

TYPE Seamless copper tube mechanically bonded to congurated aluminum n

TESTING PRESSURE Pressure test:3.3MPa for 1 minute; Leakage test:1.6MPa for 5 minutes

TUBE

MATERIAL COPPER

DIAMETER

mm 9.52

in 3/8

THICKNESS

mm 0.3

in 0.012

FIN

MATERIAL ALUMINIUM

THICKNESS

mm 0.11

in 0.0043

FACE AREA

m20.1 0.14 0.16 0.18 0.20 0.25 0.27 0.29 0.25 0.29

ft21.06 1.54 1.71 1.93 2.15 2.70 2.91 3.13 2.70 3.13

ROW 4

FIN PER INCH 11

AIR FILTER
(OPTIONAL)

SIZE

LENGTH

mm 502 722 802 902 1002 1252 1352 1452 1252 1452

in 19.76 28.43 31.57 35.51 39.45 49.29 53.23 57.17 49.29 57.17

WIDTH

mm 244 244 244 244 244 244 244 244 244 244

in 9.61 9.61 9.61 9.61 9.61 9.61 9.61 9.61 11.34 11.34

THICKNESS

mm 25 25 25 25 25 25 25 25 25 25

in 0.98 0.98 0.98 0.98 0.98 0.98 0.98 0.98 0.98 0.98