Specifications

Page 2 of 36 / IM 1059-1
Table of Contents
Model Nomenclature . . . . . . . . . . . . . . . . . . . . . . . . . 2
Vertical Unit LVC-LVW . . . . . . . . . . . . . . . . . . . . . . 2
Receiving, Storage & Handling. . . . . . . . . . . . . . . . . 3
Unit Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Fan Deck Arrangements . . . . . . . . . . . . . . . . . . . . 4
Vibration Isolators . . . . . . . . . . . . . . . . . . . . . . . . . 5
Air Balancing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Sheave Adjustment . . . . . . . . . . . . . . . . . . . . . . . . 6
Ductwork & Attenuation . . . . . . . . . . . . . . . . . . . .6-7
Optional 2" Filter Rack & Return Air Duct Collar 8-9
Piping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Cleaning & Flushing. . . . . . . . . . . . . . . . . . . . . . . 11
Start-up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11-12
Operating Limits. . . . . . . . . . . . . . . . . . . . . . . . . . 12
Electrical Data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Operating Voltages . . . . . . . . . . . . . . . . . . . . . . . 13
Additional Information for Initial Start-up . . . . . . . 13
Refrigerant Correction Factors . . . . . . . . . . . . . . 13
Controls. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14-20
MicroTech
®
III Unit Controller. . . . . . . . . . . . . . . . 14
MicroTech
®
III Operating Features . . . . . . . . . . . 15
I/O Expansion Module . . . . . . . . . . . . . . . . . . . . . 16
MicroTech
®
III Controller with Lon Module. . . . . . 17
MicroTech
®
III Controller with BACnet
®
Module . 17
MicroTech
®
III Controller Terminal Locations
& Descriptions . . . . . . . . . . . . . . . . . . . . . . . . .18-19
MicroTech
®
III Controller with Lon Module on
Board Diagram. . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Typical Wiring Diagrams .
. . . . . . . . . . . . . . . . . .21-23
MicroTech
®
III Controller with I/O Expansion
Module & Communication Module
208/230, 460, 575-60-3 Unit Sizes 096-120 . . . . 21
MicroTech
®
III Controller with I/O Expansion
Module & Communication Module
208/230, 460, 575-60-3 – 1.5 HP Motor . . . . . . . 22
MicroTech
®
III Controller with I/O Expansion
Module & Communication Module
208/230, 460, 575-60-3 – Unit Size 290 . . . . . . . 23
Additional Accessories (General). . . . . . . . . . . .24-27
Thermostats & Temperature Sensors . . . . . . .24-25
2-Way Motorized Isolation Valve . . . . . . . . . . . . . 25
2-Way Motorized Isolation Valve Wiring . . . . 26
Pump Restart Relay Kit . . . . . . . . . . . . . . . . . . . . 27
Multiple Unit Control . . . . . . . . . . . . . . . . . . . . . . 27
Multiple Unit Control Wiring . . . . . . . . . . . . . 27
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . .28-33
The in and outs of R-410A. . . . . . . . . . . . . . . . . . 28
Troubleshooting the Refrigeration Circuit . . . . . . 29
Typical Cooling Refrigeration Cycle. . . . . . . . . . . 30
Typical Heating Refrigeration Cycle. . . . . . . . . . . 31
Troubleshooting the WSHP Unit . . . . . . . . . . . . . 32
Troubleshooting the MicroTech III
Unit Controller . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Note: For illustration purposes only. Not all options available
with all models. Please consult McQuay Sales
Representative for specic availability.
Nomenclature
W LVC 1 215 B L Y S Y Y F
Product Category
W = WSHP
Product Identier
LVC = Large Vertical - Standard Range
LVW = Large Vertical - Geothermal
Design Series
1 = A Design 4 = D Design
2 = B Design 5 = E Design
3 = C Design
Nominal Capacity
072 = 72,000 BTU/h
096 = 96,000 BTU/h
120 = 120,000 BTU/h
180 = 180,000 BTU/h
215 = 215,000 BTU/h
290 = 290,000 BTU/h
Controls
B = MicroTech® III
A = DDC Less Board
Network Module Option
L = LonWorks® Module
B = BACnet® Module
Y = None
Voltage
D = 208-60-3
F = 208/230-60-3
H = 230-60-3
K = 460-60-3
L = 575-60-3
N = 380-50-3
Reserved
Y = None
Reserved
Y = None
Condensate Overow
S = Standard Overow
Sensor
Current Sensing
Y = None