Specifications

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Nomenclature
W CCH 1 019 B E Y L S
Note: For illustration purposes only. Not all options available with all models.
Please consult McQuay Sales Representative for specic availability.
Product Category
W = WSHP
Product Identier
WCCH = Ceiling Mounted/Standard Range
WCCW = Ceiling Mounted/Geothermal
Design Series
1 = A Design
2 = B Design
3 = C Design
4 = D Design
5 = E Design
Nominal Capacity
007 = 7,000 BTU/h
009 = 9,000 BTU/h
012 = 12,000 BTU/h
015 = 15,000 BTU/h
019 = 19,000 BTU/h
024 = 24,000 BTU/h
030 = 30,000 BTU/h
036 = 36,000 BTU/h
042 = 42,000 BTU/h
048 = 48,000 BTU/h
060 = 60,000 BTU/h
070 = 70,000 BTU/h
Discharge Air
S = Straight
E = End
Return Air
L = Left
R = Right
Future
(None)
Voltage
A = 115/60/1
E = 208-230/60/1
F = 208-230/60/3
J = 265/60/1
K = 460/60/3
L = 575/60/3
50 Hz
M = 230/50/1
N = 380/50/3
Controls
B - MicroTech III
C - MicroTech III With LonWorks
D - MicroTech III With BACnet
Contents
Nomenclature.......................................................................2
Receiving and Storage
........................................................ 2
Pre-Installation
..................................................................3
Unit Location
.....................................................................4
Filter Access
.....................................................................4
Air Discharge Conversion
.................................................5
Horizontal Unit Ductwork & Attenuation ............................7
Ventilation Air
....................................................................8
Electrical Data...................................................................9
Fan Assembly
...................................................................9
Piping
....................................................................................9
Cleaning & Flushing System
............................................10
Start-up
...............................................................................11
Operating Limits
................................................................12
Typical Water Source Heat Pump Common Design
Temperatures
..................................................................12
Water Source Heat Pump Operating Temperature Limits
(For Continuous Duty)
....................................................12
Water Source Heat Pump Operating Temperature Limits
At Start-UP (Not For Continuous Duty)
...........................12
Environment....................................................................12
Power supply
..................................................................12
MicroTech® III Unit Controller
..........................................15
Remote Reset Feature
...................................................15
MicroTech III Controller With L
onWorks® Communication
Module ................................................................................16
MicroTech III Controller with BACnet
Communication Module
..................................................16
Changing PSC Fan Motor Speed
..................................19
Unit Size 007 through 012 (115-60-1), (208/230-60-1) and
(265-60-1)
.......................................................................19
Unit Size 030 and 036 (460-60-1)...................................19
Unit Size 042 through 060
..............................................19
(Optional) ECM Motor
.....................................................20
Start-up
...........................................................................20
Typical Wiring Diagrams
...................................................21
Thermostat Connections
..................................................26
Optional Remote Sensor (P/N 66720401)
......................26
MicroTech III Wall-Mounted Room Temperature Sensors
27
(P/N 668900801, 669088201, 669088101 .....................27
General
...........................................................................27
Additional Accessories – General
...................................28
Pump Restart Relay Kit P/N 061419001
........................28
Troubleshooting
...............................................................29
The in and outs of R-410A
..............................................29
Lubrication
......................................................................29
Charging
.........................................................................29
General Maintenance
.....................................................29
Typical Refrigeration Cycles
............................................31
Cooling Refrigeration Cycle
............................................31
Heating Refrigeration Cycle
............................................31
Troubleshooting the Water Source Heat Pump Unit
......32
General Use and Information..........................................33