McQuay CCH072 User Manual

Catalog 1112-2
Enfinity™ Large Horizontal Water Source Heat Pumps with R-410A Refrigerant
Horizontal Models CCH Standard Range & CCW Geothermal Range Unit Sizes 072 – 120 (6 to 10 Tons) • R-410A Refrigerant
Engineered for exibility and performance™
Table of Contents
Introduction
........................................................................3
Nomenclature.....................................................................3
Features & Options ............................................................4-5
Control Features
Control Features ............................................................6
.................................................................6-9
MicroTech III Controller ..................................................7
I/O Expansion Module ....................................................8
MicroTech III Controller with Communication Module ....9
Applications ....................................................................10-14
Unit Location ................................................................10
Ductwork & Attenuation ................................................11
Typical Cooling and Heating Refrigeration Cycles .......12
Systems ..................................................................13-14
I
SO Performance Data .....................................................15
Water Loop ...................................................................15
Ground Loop ................................................................15
Ground Source .............................................................15
Heating & Cooling Capacity Data
Large Horizontal Unit .................................................16-21
Cooling Size 072 @ 2400 SCFM .................................16
Heating Size 072 @ 2400 SCFM .................................17
Cooling Size 096 @ 3000 SCFM .................................18
Heating Size 096 @ 3000 SCFM .................................19
Cooling Size 120 @ 4000 SCFM .................................20
Heating Size 120 @ 4000 SCFM .................................21
Operating Limits Correction Factors
..............................................................23
..........................................................24
Airow Correction Factors ............................................24
Anitfreeze Correction Factors ......................................24
Performance Data - Fan Curves .....................................25
Size 072, 096 & 120 .....................................................25
Dimensional Data .......................................................26-28
Size 072 .......................................................................26
Size 096 .......................................................................27
Size 120 .......................................................................28
Accessories ................................................................29-34
Hanger Brackets ..........................................................29
Supply and Return Hoses ............................................29
Condensate Hose Kit ...................................................29
Combination Balancing & Shutoff (Ball) Valves ...........30
Motorized Valve ............................................................30
Multiple Unit Control Panel (MUCP).............................30
Thermostats and Wall Sensors ...............................31-32
Control Connection Diagrams .................................33-34
Typical Wiring Diagrams
............................................35-37
MicroTech III Controller with I/O Expansion Module & Communication Module – 208/230V, 460V, 575V-60-3
Unit Sizes 096-120 .......................................................35
MicroTech™ III Controller with I/O Expansion Module & Communication Module 208/230V, 460V, 575V-60-3
1.5 HP Motor ................................................................36
Electrical & Physical Data...............................................22
©McQuay International 2009. All rights reserved throughout the world.
The information in this manual supersedes and replaces previous catalogues with regards to McQuay Water Source Heat Pump products. Illustrations cover the general appearance of McQuay International products at the time of publication and McQuay International reserves the right to make changes in design and construction at anytime without notice.
™®The following are trademarks or registered trademarks of their respective companies: LonTalk from Echelon Corporation, BACnet from ASHRAE, Protocol Selectability, and MicroTech II from McQuay International.
Engineering Guide Specications
............................37-39
Page 2 of 42 McQuay Large Horizontal Water Source Heat Pumps Catalog 1112-2
Introduction
Large Horizontal Water Source Heat Pumps - Models CCH & CCW Sizes 072-120 (6 to 10 Tons)
Model CCH (Standard Range: 55°F to 110°F) Model CCW (Geothermal Range: 30°F to 110°F)
McQuay 6- to 10-ton horizontal units have a common
cabinet size and common water, condensate, and duct con-
nection locations for easier and more efcient installation.
The cabinet is constructed of unpainted, G-60 galva-
nized steel. Large panels provide access to the fan/motor compartment and the compressor/control compartment.
The interiors of the top and side panels and the bottom of
the unit are covered with 1/2" thick, 1½ lb. dual-density berglass insulation. The lter is supported by a factory­mounted combination lter rack and return air duct collar, eliminating the need for eld-mounted brackets.
The water and condensate connections protrude through
the outside of the cabinet. The water connections are FPT type for easy connection to exible stainless steel hoses.
The large condensate connection provides effective conden-
sate removal.
The electrical components are located in the compressor section of the unit. Holes are provided on the cabinet to fa­cilitate main power and low voltage control wiring through
separate holes. All wiring connections are made internal to the cabinet for maximum safety. Each unit is rated to accept
time delay fuses for branch circuit and is protected by a
resettable circuit breaker.
The standard control for all large capacity units is the
MicroTech™ III unit controller. The unit controller receives its power from the 75VA control transformer.
A LonWorks® or BACnet® communication module is
available as an option.
Nomenclature
W CCH 1 120 B L Y S Y Y F Product Category
W = WSHP
Product Identier
CCH = Large Horizontal - Standard Range CCW = Large Horizontal - 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
Controls
B = MicroTech III A = DDC Less Board
Network Module Option
L = LonWorks® Module B = BACnet® Module Y = None
Note: For illustration purposes only. Not all options available with all models.
Please consult McQuay Sales Representative for specic availability.
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
Catalog 1112-2 McQuay Large Horizontal Water Source Heat Pumps Page 3 of 42
CCH & CCW Features and Options
MicroTech® III Controller
Schrader Connections
L
onWorks®
Communication Module
I/O Expansion Module
BACnet® Communication Module
Enfinity Large Horizontal Water Source Heat Pumps Sizes 072 - 120 (6 to 10 Tons)
Model CCH (Standard Range: 55°F to 110°F) Model CCW (Geothermal Range: 30°F to 110°F)
1. Cabinet - Heavy gauge G-60 galvanized steel.
2. Fan Section - A forward curved, DWDI fan, solid steel shaft
mounted in ball bearings. Motor to be three phase, Open- Drip Proof (ODP) type with variable pitch sheave and adjustable base.
3. Insulation - All interior framework and panels are lined with
1/2" thick, 1½ lb. dual-density berglass insulation. Optional (IAQ) closed-cell foam insulation.
4. Drain Pan - Heavy-gauge, insulated, galvanized steel or op-
tional stainless steel.
5. Filters - Standard 2" factory-installed lter rack with 2" throw-
away lters. Filter rack outtted with duct collar.
6. Refrigerant Circuit - All units have a dual refrigerant circuit
with scroll compressors, thermal expansion valve, plate to plate heat exchanger, nned tube airside coil, reversing valve and service valves.
LED Annunciators
7. Electrical - The control enclosure includes components neces-
sary for proper unit operation. These components include,
but not limited to: fan relay, compressor contactors, 24 VAC
control transformer and control circuit boards.
8. Schrader Connections - Four Schrader valves are located in-
side the end access panel – one on the low side and one on the
high side of the refrigeration circuit – for charging and servic-
ing. All valves
are 7/16" SAE ttings.
9. MicroTech® III Controllers – Designed for exibility, the control
board is used in standalone applications in conjunction with
the I/O expansion module for control of the second refrigerant
circuit. A separate L
onWorks® or BACnet® communication
module can be easily snapped onto the Microtech III board to
allow communication with a building automation system. The
control system accomodates the use of a two-stage heat/two-
stage cool 7-day programmable or non-programmable wall-
mounted thermostat, offered as a eld-installed option.
10. LED Annunciators – External LED status lights display fault
conditions to provide easy troubleshooting and diagnosis, vis-
ible without removing the access panel.
11. External Pipe Connections – Supply and return pipe connec-
tions located outside the cabinet make pipe connections easy
without removing access panels.
Safety Controls (Not Shown) - Low and high refrigerant pres-
sure switches and low refrigerant suction temperature
(freezestat) sensor.
Page 4 of 42 McQuay Large Horizontal Water Source Heat Pumps Catalog 1112-2
CCH & CCW Features and Options
Cabinet Construction
McQuay 6- to 10-ton horizontal units have a common
cabinet size and common water, condensate, and duct connec-
tion locations for easier and more efcient installation.
The cabinet is constructed of heavy-gauge G-60 galva-
nized steel. Large panels provide access to the fan/motor compartment and the compressor/control compartment. The
interiors of the top and side panels and the bottom of the unit
are covered with 1/2" thick, 1½ lb. dual-density berglass insulation. Closed-cell foam (IAQ) insulation is available as a selectable option, suitable for berglass-free applications. The lter is supported by a factory-mounted combination lter rack and return air duct collar, eliminating the need for eld­mounted brackets.
The water and condensate connections protrude through
the outside of the cabinet. The water connections are FPT type for easy connection to exible hoses. The large condensate connection provides effective condensate removal.
The electrical components are located in the compres-
sor section of the unit. Holes are provided on the cabinet to
facilitate main power and low voltage control wiring through
separate holes. All wiring connections are made internal to the cabinet for maximum safety. Each unit is rated to accept time
delay fuses for branch circuit and is protected by a resettable
circuit breaker.
Figure 1: Controls and Compressor Compartment
Extended range units include coil and piping insulation to
protect against condensation in low temperature geothermal
applications.
Safety controls include low suction temperature (freez-
stat) and high pressure switches to lock out compressor operation at extreme conditions. The safety controls can
only be reset from the main disconnect switch - not from
the wall thermostat.
For additional safety, each unit has a 7 psi (48 kPa) low
pressure switch to protect the compressor from low refrig-
erant charge. The low setting prevents nuisance trips while providing adequate protection.
Figure 2: Piping Compartment
Thermal Expansion Valve
Units include a Thermal Expansion Valve (TXV) for refrigerant metering. The TXV allows the unit to operate at optimum efciency with uid temperatures ranging from 25ºF to 110ºF (geothermal capable units only) and entering
air temperatures ranging from 40ºF to 90ºF. The TXV pre-
cisely meters the exact amount of refrigerant ow through
the system to meet the load and deliver rated heating and
cooling capacity.
Fan Section
The fan section includes the fan housing, fan wheel, fan motor, adjustable sheave, high strength V-belt, and drain
pan. The standard drain pan is made of G-60 galvanized
Refrigeration System
Units have a dual circuit design and the two circuits
operate independently to enable load shedding when condi-
tions allow. Each circuit employs a random start feature to
prevent both compressors from energizing simultaneously
after an “unoccupied” cycle.
Units contain two of each refrigerant system compo-
nent, including high efciency compressors, plate-to-plate heat exchangers, reversing valves, expansion valves, high/low side refrigerant service valves, and required safety controls. Large access panels are provided for easy service access to any of these components.
The reversing valves are energized in the heating mode
and will “fail-safe” to the cooling mode, which is the pre-
dominant mode of operation.
The air-to-refrigerant coil is a dual circuit coil on one
slab. It is split equally along the horizontal axis for maxi-
mum efciency. The ns are lanced and the tubes have nned edges on the inside to enhance heat transfer capabilities.
Catalog 1112-2 McQuay Large Horizontal Water Source Heat Pumps Page 5 of 42
steel and is insulated from the cabinet. A stainless steel drain pan is available as an option. The pan has ample height to allow self-priming of the condensate trap. The fan motor is a single speed, high efciency PSC type with
an adjustable sheave for eld adjustment. The motor is iso-
lated from the fan housing to minimize vibration transmis-
sion to the cabinet. The fan housing protrudes through the cabinet to provide adequate material to connect to a eld­provided exible duct collar. The fan discharge can exit from the end or the side of the unit and must be congured at the factory.
Optional Factory Installed Features
Geothermal range units are available for applications requiring heating operation at reduced entering condi-
tions. The geothermal range unit will operate at 25ºF (5ºC) minimum entering water temperature, 40ºF (5ºC) minimum entering air temperature.
Control Options – Control Choices And Added Functionality
The control enclosure houses the major operating electri-
cal controls including the MicroTech® III controller and I/O expansion module, control transformer, compressor relays and fan relay. Each component is easily accessed for service or replacement.
Three unique control choices are offered with the Micro-
Tech III control system:
■ Standalone operation using a MicroTech III controller and I/O expansion module
■ MicroTech III controller and I/O expansion module with a
LonWorks® communication module
■ MicroTech III controller and I/O expansion module with a BACnet® communication module
Each option features direct quick-connect wiring to all
unit-controlled components for “clean” wiring inside the
control box. Each control circuit board receives power from a 75 VA transformer.
Table 1: Control Options
Control Description Application Protocol
MicroTech III
(Standalone)
The MicroTech III controller is a stand­alone microprocessor-based control board conveniently located in the unit
control enclosure for easy accessibility.
The board is designed to provide ther­mostat control of a Water Source Heat
Pump using a two-stage wall thermo­stat. The unit controller provides unit­wide control of the WSHP and control of the rst refrigerant circuit.
Each unit controller is factory programmed, wired,
and tested for complete control of single zone, stand­alone operation of your McQuay Water Source Heat
Pump.
Unit Controller
with
I/O Expansion
Module
The I/O Expansion Module is an exten­sion of the Microtech III controller and provides control of the second refriger-
ant circuit. External LED status lights
display fault conditions to provide easy troubleshooting and diagnosis of the
second circuit.
Allows for:
• Control of second refrigeration circuit.
Uni t-mounted or wall-mounted thermostat
Wal l-mount ed the rmostat or sensor
LonWorks
Communication
Module
BACnet
Communication
Module
Page 6 of 42 McQuay Large Horizontal Water Source Heat Pumps Catalog 1112-2
The MicroTech III control system
accepts a plug-in LonWorks commu- nication module to provide network
communications and added functional-
ity to easily integrate with an existing BAS. The communication module can
be factory- or field-installed and is tested with all logic required to monitor
and control the unit.
The MicroTech III controller accepts
a plug-in BACnet communication module to provide network commu-
nications and added functionality to
easily integrate with an existing BAS.
The communication module can be
factory- or eld-installed and is tested
with all logic required to monitor and
control the unit.
Designed to be linked with a centralized building automation system (BAS) through a L munications network for centralized scheduling and management of multiple heat pumps.
Designed to be linked with a centralized building automation system (BAS) through a BACnet com­munications network for centralized scheduling and management of multiple heat pumps.
onWorks com-
L o nMa rk 3 .4 certied
BACnet
MS/TP
Control Features – MicroTech® III Unit Controller
The MicroTech III Controller is a microprocessor-based
control board conveniently located in the unit control box for easy access through a removable access panel. The standalone
unit controller is a hard wired interface and provides all the
necessary eld connections. The board can be wired for 24­volt AC output to the wall thermostat by using terminals R & C. An LED annunciator is located on the front of the unit chassis to allow quick check of the unit operating status.
MicroTech III Operating Features
Assumes cycle fan operation-not continuous fan operation:
Start-up – The unit will not operate until all the inputs
and safety controls are checked for normal conditions.
Cooling mode – On a call for cooling from the wall ther-
mostat, the controller will energize the fan relay and stage
compressors to satisfy the space temperature setpoint. When the load is satised, the controller will disable the compressor and fan.
Heating Mode – On a call for heating from the wall
thermostat, the controller will enable the fan, energize circuit one reversing valve and circuit 1 compressor to
satisfy the space heating setpoint. If the space temperature setpoint is not satiseld, circuit two reversing valve and circuit 2 compressor will be energized and run until the heating setpoint at the thermostat is satised.
Random Start Power-up Delay Timer – In the event of
a building power outage, this feature prevents multiple units from starting simultaneously upon building power
restoration.
Unoccupied Mode – A simple “grounded” signal between
terminals U and C (no power source required), puts the
unit into the unoccupied mode for night setback operation.
Interstaging Timer – A default value of 5 minutes be-
tween staging of compressors, this feature minimizes short
cycling of compressors and improves comfort.
Override Mode – A switch on the deluxe automatic
changeover thermostat can be activated during the unoc-
cupied mode to put the unit back into the occupied mode for two hours for after-hours heating or cooling.
Motorized Valve/Pump Restart – The IV/PR (H8) ter-
minals on the The MicroTech III unit controller are used to energize (open) a motorized valve or start a water pump to get water circulating prior to starting the compressor on
call for heating or cooling. The IV/PR (H8) terminal may be “daisy chained” between a maximum of 200 units.
Brownout Protection – The MicroTech III unit controller
measures the input voltage and will suspend compres-
sor and fan operation if the voltage falls below 80% of
the unit nameplate rated value. A unique LED status is
generated.
Unit Shutdown – A simple grounded signal puts the unit
into the shutdown mode. Compressor and fan operations are suspended. A unique LED status is generated.
Condensate Overow Protection – The MicroTech III
controller incorporates a liquid sensor at the top of the
drain pan. Upon sensing water ow, cooling operation is suspended. A unique LED status is generated.
Remote Reset of Automatic Lockouts – The Remote
Reset feature provides the means to remotely reset auto-
matic lockouts generated by high-pressure and/or low­temperature faults. When the MicroTech III controller is in automatic lockout due to one of these faults, and the
cause of the fault condition has been alleviated, energiz­ing the O-terminal for 10 seconds or more will force the
control board to clear the lockout. A unit power cycle can also be used to clear an automatic lockout if the conditions causing the fault have been alleviated.
Intelligent Reset – The Fault Retry feature helps to
minimize nuisance trips of automatic lockouts caused by high-pressure and/or low-temperature faults. This feature clears faults the rst two times they occur within a 24-hour period and triggers an automatic lockout on the 3rd fault. The retry count is reset to zero every 24 hours.
Equipment Protection Control – The MicroTech III
controller receives separate input signals from the refrig­erant high-pressure switch and the low suction line tem-
perature sensor. In a high-pressure situation, compressor operation is suspended. In a low temperature situation,
the unit goes into a defrost cycle where the unit is put
into cooling operation for 60 seconds until the coaxial heat exchanger is free of ice. Each switch generates its own unique LED status.
Note: Most unit fault conditions are the result of operating
the equipment outside the unit specications.
Table 2: MicroTech III Controller LED & Fault Outputs
Mode / Fault
Occupied, Bypass, Standby, or Tenant Off On Off Energized Override Unoccupied On On Off Energized
Condensate Overow On Off Off De-energized
High Pressure 1 Fault Off Off Flash De-energized Low Pressure 1 Fault Off Off On De-energized Low Temperature 1 Fault Flash Off Off De-energized
Brownout
Emergency Shutdown Off Flash Off De-energized
Room/Return Air or Low Temp Sensor 1 Failure
Service Test Mode
Enabled
Serial EEPROM Corrupted
Network “Ofine”
Received
1
Compressor relay/compressor terminal is labeled COMP, switched line of
the same electric input as any of the L1 terminals.
Status LED’s
1
Yellow Green Red Output-Terminal “A”
Off Flash Off De-energized
Flash Flash On De-energized
Flash Flash Flash De-energized
On On On De-energized
Off Off Off De-energized
Thermostat Alarm Light
Catalog 1112-2 McQuay Large Horizontal Water Source Heat Pumps Page 7 of 42
Control Features – MicroTech III with I/O Expansion Module
I/O Expansion Module
The I/O Expansion Module is factory-installed for control of the second refrigeration circuit.
The I/O Expansion Module has an independent LED an-
nunciator to identify operational fault conditions for the
second refrigeration circuit.
Table 3: I/O Expansion Module LED & Fault Outputs
Terminal “A”
Invalid Conguration Jumper Setting
Base Board Communication Fail
High Pressure #2 Fault Off Off Flash De-energized Low Pressure #2 Fault Off Off On De-energized
Unoccupied Mode On On Off Energized Occupied, Bypass,
Standby, or Tenant Override Modes
Note: Mode / Faults are listed in order of priority.
1 2
Mode / Fault
Low Suction Temp #2 Fault Flash Off Off De-energized
Sensor Failures Low Suction Low Suction Temp #2, Flash Flash On De-energized
1
EWT (w/ Boilerless EH only)
2
Service Test Mode Enabled Flash Flash Flash De-energized
Normal Operation Off On Off De-energized
Boilerless electric heat only Alarm/fault LED indications take precedence over service test mode LED
indication. The controller shall use service test mode if the service test mode jumper is installed, even if the LED’s indicate an alarm/fault.
Yellow Green Red
Status LED's
Flash Flash Off De-energized
Off Flash Flash N/A
Off On Off Energized
Thermostat Alarm
Light Output
Figure 3: I/O Expansion Module Conguration
Jumper Terminals
Jumper Terminals
JP1 shorted in units with 2 compressors
JP1 through JP8 not used with 2 circuit units.
Page 8 of 42 McQuay Large Horizontal Water Source Heat Pumps Catalog 1112-2
Control Features – MicroTech III with Communication Module
MicroTech® III Controller with LonWorks® or BACnet Communication Module
Each Ennity Large Vertical and Horizontal Water
Source Heat Pump can be equipped with a LonWorks or BACnet communication module. The LonWorks module is
LonMark 3.4 certied and designed to communicate over a
LonWorks communications network to a Building Auto-
mation System (BAS). The BACnet module is designed to
communicate over a BACnet MS/TP communications net-
work to a building automation system. Both controllers are microprocessor-based and can be factory or eld-installed.
The control modules are programmed and tested with all
the logic required to monitor and control the unit. Optional
wall sensors may be used with the communication modules to provide limited local control of the Horizontal Water
Source Heat Pump. The MicroTech III controller monitors
water and air temperatures and passes information to the
communication module. The module communicates with the BAS, to provide network control of the Water Source Heat Pump.
MicroTech III LonWorks Communication Module
The LonWorks communication module is designed for
units that are integrated into a LonWorks communication
network for centralized scheduling and management of multiple heat pumps.
MicroTech III Controller with Communication Modules Features
The MicroTech III Controller with LonWorks or BACnet Communication Module orchestrates the following unit operations:
Enable heating and cooling to maintain space
temperature setpoint based on a room sensor setting
Enable fan and compressor operation Monitors all equipment protection controls Monitors room and discharge air temperatures Monitors leaving water temperature Relays status of all vital unit functions
An amber, on-board status LED indicates the status of the
MicroTech III LonWorks or BACnet module.
The MicroTech III Controller Includes:
A unit-mounted return air sensor
A unit-mounted discharge air sensor
A leaving water temperature sensor
The communication modules provide network access to
setpoints for operational control
Available Wall Sensors Include:
Room sensor
MicroTech III BACnet Communication Module
Designed to be linked with a centralized building auto-
mation system (BAS) through a BACnet communications network for centralized scheduling and management of multiple heat pumps.
Room sensor with LED status and tenant override
button
Temperature sensor with LED status, timed-override
button, and ±3°F setpoint adjustment
Room sensor with LED status, timed-override button, 55° to 90°F setpoint adjustment
Catalog 1112-2 McQuay Large Horizontal Water Source Heat Pumps Page 9 of 42
Applications
Typical Horizontal Unit Installation
Unit Location
It is important to leave enough space for service person-
nel to perform maintenance or repair. Locate the horizon-
tal unit to allow for easy removal of the lter and access panels. Allow a minimum of 18" (46 cm) clearance on each
side of the unit for service and maintenance access and
do not install the unit above any piping. Always be sure to leave at least one side of the lter rack unobstructed so that the service personnel will be able to slide the lter out.
Each unit is suspended from the ceiling by four 3/8" thread-
ed rods fastened to the unit by a hanger bracket and rubber isolator. The design should place the unit directly below the structural members so that it is securely anchored.
Avoid installing units directly above spaces where building occupants will reside (e.g. above ofce desks or classrooms) to reduce the requirement for noise attenuation. Do not place units above high trafc areas because service access may be limited during occupied hours. For example,
units are typically installed above the hallway drop ceiling in Schools and the supply and return air is routed directly
into classrooms. Local code may require re dampers to be used with this application.
Piping
The WSHP unit is typically connected to the supply/re­turn piping using a “reverse return” piping system which
includes a ow control device so that ow requirements are met for each zone. A short, high pressure “exible hose” is
used to connect the unit to the building’s hard piping and
Figure 4: Typical Ceiling Installation
acts as a sound attenuator for both the unit operating noise
and hydraulic pumping noise. One end of the hose has a
swivel tting to facilitate removal of the unit for replace-
ment or service. Include supply and return shutoff valves
in the design to allow removal of a unit without the need to
shut down the entire heat pump system. The return valve
may be used for balancing and will typically have a “mem­ory stop” so that it can be reopened to the proper position
for the ow required. Fixed ow devices are commercially
available and can be installed to eliminate the need for memory stop shut off valves. Include Pressure / Tempera­ture ports to allow the service technician to measure water
ow and unit operation.
Condensate Drain Piping
Condensate piping can be made of steel, copper or PVC pipe. In most cases, PVC pipe eliminates the need to wrap insulation around the pipe to prevent sweating. A threaded, factory supplied condensate tting allows the connection of PVC, exible vinyl hose or steel braided hose.
The condensate piping must be trapped at the unit and
pitched away from the unit not less than 1/4" per foot. A
vent is required after the trap so that the condensate will
drain away from the unit. The vent can also act as a clean out if the trap becomes clogged. To avoid having waste
gases entering the building, the condensate drain should
not be directly piped to a drain/waste/vent stack. See local
codes for the correct application of condensate piping to
drains.
Figure 5: Typical Condensate Piping
Condensate
Drain (P Trap)
1 1/2"
(38mm)
Page 10 of 42 McQuay Large Horizontal Water Source Heat Pumps Catalog 1112-2
1 1/2"
(38mm)
Optional
Field Installed Vent
1/4" Per Foot
(21mm Per Meter)
Ductwork and Sound Attenuation Considerations
Applications
Ductwork is normally applied to ceiling-mounted heat
pumps on the discharge side of the unit. A discharge collar
is provided on all horizontal unit models for fastening the
ductwork. Use a exible connector between the discharge
collar and the duct transformation to help reduce vibration
straight length of duct, 5 to 10 times the duct width, before
the next tting to smooth out airow. Diffusers that are lo-
cated in the bottom of a trunk duct can also produce noise.
For this same reason, volume control dampers should be
located several duct widths upstream from an air outlet.
transmission from the cabinet and to simplify disconnection
of the unit from the ceiling ductwork. If return ductwork is to be used, attach a exible connector to the lter rack
collar to help reduce vibration transmission and removal of
the unit. Return plenum ducting should be at least 12 inches
away from the coil so that the coil is evenly loaded with
return air.
For Hotel, Motel, Dormitory or Nursing Home applica-
tions that use a single duct discharge, a velocity of 500 to
600 fpm is suggested. These applications typically have static pressures as low as 0.05 inches of water and duct lengths approximately six feet in length. The discharge
duct must be fully lined and have a square elbow without
turning vanes. Return air for these applications should
As a general recommendation, duct interiors should have an acoustic / thermal lining at least 1/2 inch thick over the entire duct run. For better sound attenuation, line the last ve diameters of duct before each register with a one-inch thick sound blanket. Elbows, tees and dampers can create turbulence or distortion in the airow. Place a
enter through a “low” sidewall lter grille and route up the stud space to a ceiling plenum. For horizontal heat pumps
mounted from the ceiling, an insulated return plenum is sometimes placed at the return air opening to further attenuate line-of-sight sound transmission through return
openings.
Figure 6: Suggested Supply Ducting per ASHRAE and SMACNA Publications
Flexible Connector
Acoustic/Thermal Lining
3ft. (.9m) to 5ft. (1.5m)
Acoustic/Thermal
Lining
Diffuser
(Ductwork Sized Based on Airow)
Figure 7: Suggested Return Ducting per ASHRAE and SMACNA Publications
Two 90° Turns Prior to the Intake
(Ductwork Sized Based on Airow)
Ductwork Supported
Independent of Unit
Acoustic/Thermal
Lining
Flexible Connector
Ductwork Supported
Independent of Unit
Diffuser
Two 90° Turns
Acoustic/Thermal
Lining
Return Air Intake
Located
Away from the
Unit Blower
Catalog 1112-2 McQuay Large Horizontal Water Source Heat Pumps Page 11 of 42
Acoustic/Thermal
Lining 10ft. (3 meters)
Flexible Connector
Applications
Typical Cooling and Heating Refrigeration Cycles – Dual Compressors
Note: Typical temperature readings are at full load conditions at ISO-13256 for boiler-tower applications.
Figure 8: Cooling Refrigeration Cycle
When the wall thermostat calls for COOLING, the revers-
ing valve (de-energized) directs the ow of the refrigerant,
a hot gas, from the compressor to the water-to-refrigerant
heat exchanger (coaxial heat exchanger). There, the heat is
removed by the water, and the hot gas condenses to become
a liquid. The liquid then ows through a thermal expansion
valve to the air-to-refrigerant heat exchanger coil (evapora-
tor). The liquid then evaporates and becomes a gas, at the
same time absorbing heat and cooling the air passing over the
surfaces of the coil. The refrigerant then ows as a low pres-
sure gas through the reversing valve and back to the suction side of the compressor to complete the cycle.
Figure 9: Heating Refrigeration Cycle
When the wall thermostat calls for HEATING, the
reversing valve (energized) directs the ow of the refriger-
ant, a hot gas, from the compressor to the air-to-refrigerant
heat exchanger coil (condenser). There, the heat is removed
by the air passing over the surfaces of the coil and the hot
gas condenses and becomes a liquid. The liquid then ows through a thermal expansion valve to the water-to-refrigerant heat exchanger (evaporator). The liquid then evaporates and
becomes a gas, at the same time absorbing heat and cooling
the water. The refrigerant then ows as a low pressure gas through the reversing valve and back to the suction side of the compressor to complete the cycle.
Page 12 of 42 McQuay Large Horizontal Water Source Heat Pumps Catalog 1112-2
Applications – Systems
Water source heat pump systems are one of the most ef-
cient, environmentally friendly systems available for heating and cooling buildings. High-efciency, self contained units (sizes 7,000 btuh to 290,000 btuh) can be placed in virtually any location within a building. Each unit responds only to the heating or cooling load of the individual zone it serves. This permits an excellent comfort level for occupants, better
control of energy use for building owners and lower seasonal
operating costs. The Air-Conditioning Refrigeration Institute (ARI) and the International Standards Organization (ISO)
publish standards so that water source heat pumps are rated
for specic applications. The ARI/ISO loop options shown in
this catalog are typical water source heat pump loop choices
available in today’s market. These systems offer benets rang-
ing from low cost installation to the highest energy efciency available in the market today.
Boiler / Tower Applications: ARI 320 / ISO 13256-1
A “Boiler/Tower” application uses a simple two-pipe
water circulating system that adds heat, removes heat or transfers rejected heat to other units throughout the build-
ing. The water temperature for heating is generally main-
tained between 65ºF – 70ºF and is usually provided by a natural gas or electric boiler located in a mechanical room.
The condensing water temperature, during cooling months,
is maintained between 85ºF and 95ºF and requires the use
of a cooling tower to dissipate waste heat. Cooling tow-
ers can be located on the roof, or inside or adjacent to the
building. This application can be the lowest cost of the loop options available. Note: ASHRAE 90.1 standards require that circulating pumps over 10 HP will require use of “variable frequency
drive” equipment and pipe insulation to be used whenever water temperatures are below 60 degrees and above 105
degrees. See ASHRAE 90.1 Standards for details.
Open Loop Well Water Applications: ARI 325 / ISO 13256-1
“Open Loop” well water systems use ground water to remove or add heat to the interior water loop. The key benet of an open loop system is the constant water temperature, usually 50ºF to 60ºF, which provides efcient operation at a low rst cost. Most commercial designers incorporate a heat exchanger to isolate the building loop from the well water. Using heat exchangers can reduce
maintenance issues while still allowing the transfer of heat from unit to unit as with the “Boiler/Tower System”. A suc­cessful design provides an ample amount of groundwater
(approximately 2 GPM per ton) and adequate provisions for discharging water back to the aquifer or surface. Open Loop applications are commonly used in coastal areas
where soil characteristics allow reinjection wells to return the water back to the aquifer. Note that some states have re­quirements on the depths of return water reinjection wells,
and such wells must be approved by the United States En-
vironmental Protection Agency. Also, bad water quality can increase problems with heat exchanger scaling. Suspended solids can erode the heat exchanger. Strainers can be used to contain suspended solids.
Figure 11: Open Loop Well Application
Figure 10: Boiler/Tower Application
Catalog 1112-2 McQuay Large Horizontal Water Source Heat Pumps Page 13 of 42
Applications – Systems
Closed Loop Geothermal Applications ARI 330/ISO 13256-1
“Vertical Closed Loop” applications are installed by
drilling vertical bore holes into the earth and inserting
a plastic polyethylene supply/return pipe into the holes.
The vertical wells are connected in parallel reverse return fashion to allow the water from the building to circulate evenly throughout the boreeld. The circulating uid dis­sipates heat to the ground in a similar manner as a “tower”
and adds heat back to the loop like a boiler. If properly designed, the loop eld can maintain the loop temperatures
necessary to condition the building without the use of a
boiler or a tower. Loop temperatures usually range from 37ºF to 95ºF in Northern climates. Southern applications can see temperatures ranging from 40ºF to 100ºF. The
number of bore holes and their depth should be determined
by using commercial software that is specically designed for vertical geothermal applications. Typical bore depths of a vertical loop range from 150 to 400 feet and generally require about 250 feet of surface area per ton of cooling.
Figure 12: Vertical Loop Application
Figure 13: Horizontal Loop Application
A “Surface Water” or “Lake” closed loop system is a
geothermal loop that is directly installed in a lake or body of water that is near the building. In many cases, the body
of water is constructed on the building site to meet drainage
or aesthetic requirements. Surface loops use bundled
polyethylene coils that are connected in the same manner as a vertical or horizontal loop using a parallel reverse
return design. The size and the depth of the lake is critical.
Commercial design services should be used to certify that a
given body of water is sufcient to withstand the building loads. Loop temperatures usually range from 35ºF to 90ºF
and prove to be the best cooling performer and lowest
cost loop option of the three geothermal loops. Some
applications may not be good candidates due to public
access or debris problems from ooding.
Figure 14: Surface Water Loop Application
A closed loop “Horizontal” geothermal application is similar to a vertical loop application with the exception that the loops are installed in trenches approximately 5 feet below the ground surface. The piping may be installed using a “four-pipe” or “six-pipe” design and could require 1,500 to 2,000 square feet of surface area per ton of cooling. Loop temperatures for a commercial application can range from 35ºF to 95ºF in Northern climates. Southern climates can see temperatures ranging from 40ºF to 100ºF. Horizontal loops are generally not applied in urban areas because land use and costs can be prohibitive. New
advances in installation procedures have improved the
assembly time of horizontal loops while keeping the rst cost lower than a vertical loop.
Page 14 of 42 McQuay Large Horizontal Water Source Heat Pumps Catalog 1112-2
ISO Performance Data
Table 4: Water Loop
Unit Size CFM L/S GPM L/S Btuh
072
096
120
Note: Water Loop Performance Data – Rated in Accordance with ISO Standard 13256-1
Table 5: Ground Loop
Unit Size CFM L/S GPM L/S Btuh
072
096
120
Note: Ground Loop Performance Data – Rated in Accordance with ISO Standard 13256-1
Airow Waterow
1133
2400
3000
4000
1416
1888
20.1
23.6
30.1
Airow Waterow
1133
2400
3000
4000
1416
1888
20.1
23.6
30.1
1.27
1.49
1.90
1.27
1.49
1.90
Voltage
208/230-60-3
460-60-3 575-60-3
208/230-60-3
460-60-3 575-60-3
208/230-60-3
460-60-3 575-60-3
Voltage
208/230-60-3
460-60-3 575-60-3
208/230-60-3
460-60-3 575-60-3
208/230-60-3
460-60-3 575-60-3
78100
94900
121800
77700
97300
124600
Cooling Heating
Watts EER COP Btuh Watts COP
22868
27788
35664
13.4
14.8
14.4
3.9
4.3
4.2
Cooling Heating
Watts EER COP Btuh Watts COP
22751
28490
36484
16.3
16.8
16.0
4.8
4.9
4.7
82700
94300
126200
58700
66100
92500
24215
27612
36953
17188
19355
27085
4.4
4.3
4.4
3.7
3.3
3.6
Table 6: Ground Source
Unit Size CFM L/S GPM L/S Btuh
072
096
120
Note: Ground Source Performance Data – Rated in Accordance with ISO Standard 13256-1
Airow Waterow
1133
2400
3000
4000
1416
1888
20.1
23.6
30.1
1.27
1.49
1.90
Voltage
208/230-60-3
460-60-3 575-60-3
208/230-60-3
460-60-3 575-60-3
208/230-60-3
460-60-3 575-60-3
82500
103100
134400
Cooling Heating
Watts EER COP Btuh Watts COP
24157
30189
39354
21.3
21.5
20.7
6.2
6.3
6.1
71400
79800
115700
20907
23366
33878
4.2
3.8
4.2
Catalog 1112-2 McQuay Large Horizontal Water Source Heat Pumps Page 15 of 42
Cooling Capacity Data – Large Horizontal, Size 072 @ 2400 SCFM
EWT GPM WPD
EA LWT TOT SEN kW EER TOT kW EER THR
30
40
50
60
70
80
85
90
100
110
12.0
18.0
24.0
12.0
18.0
24.0
12.0
18.0
24.0
12.0
18.0
24.0
12.0
18.0
24.0
12.0
18.0
24.0
12.0
18.0
24.0
12.0
18.0
24.0
12.0
18.0
24.0
12.0
18.0
24.0
System ISO
75
63
5.6
12.2
21.2
5.6
12.2
21.2
5.6
12.2
21.2
5.6
12.2
21.2
5.6
12.2
21.2
5.6
12.2
21.2
5.6
12.2
21.2
5.6
12.2
21.2
5.6
12.2
21.2
5.6
12.2
21.2
80 85 75 80 85 75 80 85 75 80 85 75 80 85 75 80 85 75 80 85 75 80 85 75 80 85 75 80 85 75 80 85 75 80 85 75 80 85 75 80 85 75 80 85 75 80 85 75 80 85 75 80 85 75 80 85 75 80 85 75 80 85 75 80 85 75 80 85 75 80 85 75 80 85 75 80 85 75 80 85 75 80 85 75 80 85 75 80 85
38.8
67
39.5
71
40.1
63
35.9
67
36.3
71
36.8
63
34.5
67
34.8
71
35.1
63
48.7
67
49.3
71
49.9
63
45.8
67
46.2
71
46.6
63
44.4
67
44.7
71
45.0
63
58.5
67
59.1
71
59.6
63
55.7
67
56.1
71
56.5
63
54.3
67
54.6
71
54.9
63
68.3
67
68.8
71
69.4
63
65.6
67
65.9
71
66.3
63
64.2
67
64.5
71
64.7
63
78.1
67
78.6
71
79.1
63
75.4
67
75.8
71
76.1
63
74.1
67
74.3
71
74.6
63
87.9
67
88.4
71
88.9
63
85.3
67
85.6
71
86.0
63
84.0
67
84.2
71
84.5
63
92.8
67
93.3
71
93.8
63
90.2
67
90.6
71
90.9
63
88.9
67
89.2
71
89.4
63
97.8
67
98.2
71
98.7
63
95.2
67
95.5
71
95.8
63
93.9
67
94.1
71
94.4
63
107.6
67
108.1
71
108.5
63
105.1
67
105.4
71
105.7
63
103.8
67
104.1
71
104.3
63
117.5
67
117.9
71
118.3
63
115.0
67
115.3
71
115.6
63
113.8
67
114.0
71
114.2
97582
104910
112560
98516
105990
113790
98985
106540
114380
93797 100780 108060
94783 101930 109380
95272 102510
110070
89651
96314 103270
90655
97499 104600
91193
98094 105290
85347
91655
98202
86337
92768
99518
86832
93359 100220
80798
86768
93022
81764
87920
94322
82277
88515
94949
76192
81873
87815
77151
82935
88959
77648
83457
89577
73946
79412
85167
74800
80434
86371
75284
81013
86953
71650
77026
82608
72594
77981
83703
72985
78483
84292
67216
72317
77597
68010
73171
78579
68387
73621
79111
63029
67952
73041
63704
68644
73798
64065
69031
74199
71437 74520 77607 71925 75053 78195 72171 75326 78477 69452 72471 75500 69969 73039 76118 70234 73326 76441 67264 70227 73211 67805 70828 73846 68088 71130 74174 64956 67873 70798 65486 68434 71422 65753 68733 71758 62531 65414 68337 63044 65996 68956 63317 66295 69254 60056 62932 65839 60579 63480 66390 60847 63746 66690 58837 61678 64563 59296 62198 65146 59560 62495 65427 57592 60459 63330 58128 60945 63858 58311 61202 64140 55193 58037 60912 55622 58473 61386 55822 58704 61642 52895 55774 58676 53267 56140 59050 53465 56336 59248
2.91
2.96
3.01
2.78
2.82
2.86
2.72
2.75
2.79
3.41
3.45
3.49
3.28
3.31
3.35
3.21
3.25
3.28
3.93
3.97
4.00
3.80
3.83
3.86
3.73
3.76
3.78
4.49
4.53
4.57
4.36
4.39
4.42
4.30
4.32
4.34
5.13
5.16
5.19
4.99
5.01
5.03
4.92
4.93
4.95
5.84
5.86
5.88
5.68
5.70
5.72
5.61
5.63
5.64
6.21
6.24
6.26
6.07
6.08
6.09
5.99
5.99
6.01
6.62
6.63
6.65
6.45
6.47
6.48
6.38
6.39
6.39
7.45
7.45
7.46
7.29
7.30
7.30
7.22
7.21
7.21
8.31
8.29
8.27
8.17
8.15
8.13
8.09
8.08
8.06
33.5
35.5
37.4
35.4
37.5
39.7
36.4
38.7
41.0
27.5
29.2
31.0
28.9
30.8
32.6
29.6
31.6
33.6
22.8
24.3
25.8
23.8
25.5
27.1
24.4
26.1
27.8
19.0
20.2
21.5
19.8
21.1
22.5
20.2
21.6
23.1
15.8
16.8
17.9
16.4
17.6
18.8
16.7
18.0
19.2
13.1
14.0
14.9
13.6
14.5
15.5
13.9
14.8
15.9
11.9
12.7
13.6
12.3
13.2
14.2
12.6
13.5
14.5
10.8
11.6
12.4
11.3
12.1
12.9
11.4
12.3
13.2
9.0
9.7
10.4
9.3
10.0
10.8
9.5
10.2
11.0
7.6
8.2
8.8
7.8
8.4
9.1
7.9
8.5
9.2
100920 108233 115883 101839 109313 117113 102308 109863 117703
97120 104103 111383
98106 105253 112703
98595 105833 113393
92974
99637 106593
93978 100822 107923
94516 101417 108613
88670
94978 101525
89660
96091 102841
90155
96682 103543
84121
90091
96345
85087
91243
97645
85600
91838
98272
79515
85196
91138
80474
86258
92282
80971
86780
92900
77269
82735
88490
78123
83757
89694
78607
84336
90276
74973
80349
85931
75917
81304
87026
76308
81806
87615
70539
75640
80920
71333
76494
81902
71710
76944
82434
66352
71275
76364
67027
71967
77121
67388
72354
77522
2.88
2.92
2.97
2.75
2.79
2.83
2.69
2.72
2.76
3.37
3.41
3.45
3.25
3.28
3.32
3.18
3.22
3.25
3.90
3.93
3.97
3.77
3.79
3.82
3.70
3.73
3.75
4.46
4.49
4.53
4.33
4.36
4.38
4.27
4.29
4.31
5.10
5.13
5.16
4.96
4.97
5.00
4.89
4.90
4.92
5.80
5.83
5.85
5.65
5.67
5.69
5.58
5.60
5.61
6.18
6.21
6.23
6.04
6.05
6.05
5.96
5.96
5.97
6.58
6.59
6.61
6.42
6.44
6.45
6.35
6.36
6.36
7.41
7.42
7.43
7.26
7.26
7.26
7.19
7.18
7.18
8.28
8.25
8.23
8.14
8.12
8.10
8.06
8.05
8.03
33.9
35.8
37.7
34.6
36.6
38.7
33.4
35.5
37.6
28.0
29.6
31.3
28.5
30.3
32.1
27.7
29.5
31.3
23.2
24.7
26.2
23.7
25.3
26.8
23.2
24.7
26.3
19.4
20.7
21.9
19.8
21.1
22.5
19.4
20.7
22.1
16.2
17.2
18.3
16.5
17.6
18.8
16.3
17.4
18.6
13.5
14.4
15.3
13.8
14.7
15.7
13.6
14.5
15.5
12.3
13.1
14.0
12.5
13.4
14.3
12.4
13.3
14.2
11.2
12.0
12.8
11.5
12.3
13.1
11.3
12.1
13.0
9.4
10.1
10.7
9.6
10.3
11.0
9.5
10.2
10.9
7.9
8.5
9.2
8.0
8.7
9.3
8.0
8.6
9.2
107140 114590 122380 107690 115270 123170 107950 115600 123530 104850 111940 119330 105450 112680 120230 105740 113060 120700 102290 109040 116090 102900 109800 116990 103230 110190 117450
99700 106100 112750 100290 106790 113600 100580 107160 114070
97100 103150 109480
97637 103830 110280
97928 104180 110670
94675 100410 106410
95161 100990 107060
95416 101270 107420
93595
99129 104940
93999
99656 105600
94231
99958 105930
92545
97946 103580
92983
98415 104160
93147
98662 104470
90702
95810 101110
91011
96174 101570
91160
96372 101830
89215
94056
99075
89442
94326
99399
89561
94474
99576
Page 16 of 42 McQuay Ennity Horizontal Water Source Heat Pumps Catalog 1112-2
Heating Capacity Data – Large Horizontal, Size 072 @ 2400 SCFM
EWT GPM WPD
EA LWT TOT kW COP TOT kW COP THA
12.0
20
30
40
50
60
70
80
85
90
18.0
24.0
12.0
18.0
24.0
12.0
18.0
24.0
12.0
18.0
24.0
12.0
18.0
24.0
12.0
18.0
24.0
12.0
18.0
24.0
12.0
18.0
24.0
12.0
18.0
24.0
System ISO
60
15.9
5.6
12.2
21.2
5.6
12.2
21.2
5.6
12.2
21.2
5.6
12.2
21.2
5.6
12.2
21.2
5.6
12.2
21.2
5.6
12.2
21.2
5.6
12.2
21.2
5.6
12.2
21.2
16.1
16.4
17.3
17.4
17.6
17.9
18.1
18.2
24.8
25.1
25.4
26.5
26.7
27.0
27.4
27.6
27.7
33.6
34.0
34.3
35.7
36.0
36.2
36.8
37.0
37.2
42.2
42.7
43.1
44.8
45.1
45.4
46.1
46.3
46.6
50.7
51.2
51.8
53.8
54.2
54.5
55.3
55.6
55.9
59.1
59.7
60.3
62.7
63.1
63.5
64.5
64.8
65.2
67.3
68.0
68.8
71.5
72.0
72.5
73.7
74.0
74.4
71.4
72.2
72.9
75.9
76.4
77.0
78.2
78.6
79.0
75.5
76.3
77.1
80.3
80.9
81.4
82.7
83.1
83.6
40774 40592 40394 40774 40592 40394 40774 40592 40394 48594 48016 47444 48594 48016 47444 48595 48016 47444 57617 56571 55563 57618 56573 55564 57619 56573 55565 67729 66161 64671 67733 66164 64674 67735 66166 64675 78829 76696 74675 78839 76704 74681 78842 76706 74684 90797 88066 85477 90822 88086 85491 90829 88091
85496 103490 100140
96938 103550 100180
96970 103560 100190
96979 110050 106400 102870 110140 106460 102910 110160 106470 102930 116740 112750 108910 116870 112840 108980 116900 112870 109000
70 80 60 70 80 60 70 80 60 70 80 60 70 80 60 70 80 60 70 80 60 70 80 60 70 80 60 70 80 60 70 80 60 70 80 60 70 80 60 70 80 60 70 80 60 70 80 60 70 80 60 70 80 60 70 80 60 70 80 60 70 80 60 70 80 60 70 80 60 70 80 60 70 80 60 70 80 60 70 80
3.59
4.04
4.53
3.59
4.04
4.53
3.59
4.04
4.53
3.70
4.16
4.66
3.70
4.16
4.66
3.70
4.16
4.66
3.83
4.31
4.82
3.83
4.31
4.82
3.83
4.31
4.82
3.99
4.48
5.01
3.99
4.48
5.01
3.99
4.48
5.01
4.18
4.68
5.22
4.18
4.68
5.22
4.18
4.68
5.22
4.39
4.89
5.44
4.39
4.89
5.44
4.39
4.89
5.44
4.62
5.13
5.69
4.62
5.13
5.69
4.62
5.13
5.69
4.74
5.26
5.81
4.74
5.26
5.82
4.74
5.26
5.82
4.87
5.39
5.95
4.88
5.39
5.95
4.88
5.39
5.95
2.4
2.0
1.7
2.4
2.0
1.7
2.4
2.0
1.7
2.9
2.4
2.0
2.9
2.4
2.0
2.9
2.4
2.0
3.5
2.9
2.4
3.5
2.9
2.4
3.5
2.9
2.4
4.0
3.4
2.8
4.0
3.4
2.8
4.0
3.4
2.8
4.6
3.9
3.2
4.6
3.9
3.2
4.6
3.9
3.2
5.1
4.3
3.6
5.1
4.3
3.6
5.1
4.3
3.6
5.6
4.8
4.0
5.6
4.8
4.0
5.6
4.8
4.0
5.8
5.0
4.2
5.8
5.0
4.2
5.8
5.0
4.2
6.1
5.2
4.4
6.1
5.2
4.4
6.1
5.2
4.4
39187 39005 38807 39187 39005 38807 39187 39005 38807 47007 46429 45857 47007 46429 45857 47008 46429 45857 56030 54984 53976 56031 54986 53977 56032 54986 53978 66142 64574 63084 66146 64577 63087 66148 64579 63088 77242 75109 73088 77252 75117 73094 77255 75119 73097 89210 86479 83890 89235 86499 83904 89242 86504 83909
101903
98553 95351
101963
98593 95383
101973
98603
95392 108463 104813 101283 108553 104873 101323 108573 104883 101343 115153
111163 107323 115283 111253 107393 115313 111283 107413
3.13
3.58
4.07
3.13
3.58
4.07
3.13
3.58
4.07
3.23
3.69
4.20
3.23
3.69
4.20
3.23
3.70
4.20
3.37
3.84
4.36
3.37
3.84
4.36
3.37
3.84
4.36
3.53
4.01
4.54
3.53
4.02
4.54
3.53
4.02
4.54
3.72
4.21
4.75
3.72
4.21
4.75
3.72
4.21
4.75
3.93
4.43
4.98
3.93
4.43
4.98
3.93
4.43
4.98
4.16
4.67
5.22
4.16
4.67
5.22
4.16
4.67
5.22
4.28
4.79
5.35
4.28
4.80
5.35
4.28
4.80
5.35
4.41
4.92
5.48
4.41
4.93
5.49
4.41
4.93
5.48
2.7
2.5
2.2
2.8
2.5
2.2
2.8
2.5
2.2
3.3
2.9
2.6
3.3
2.9
2.6
3.3
2.9
2.6
3.8
3.3
3.0
3.8
3.3
3.0
3.8
3.3
3.0
4.3
3.8
3.3
4.3
3.8
3.3
4.3
3.8
3.3
4.8
4.2
3.7
4.8
4.2
3.7
4.8
4.2
3.7
5.3
4.7
4.1
5.3
4.7
4.1
5.3
4.7
4.1
5.8
5.1
4.5
5.8
5.1
4.5
5.8
5.1
4.5
6.0
5.3
4.7
6.0
5.3
4.7
6.0
5.3
4.7
6.2
5.5
4.8
6.2
5.5
4.9
6.2
5.5
4.9
29122 27472 25685 29122 27472 25685 29122 27472 25685 36606 34523 32318 36606 34523 32319 36606 34523 32319 45191 42603 39921 45193 42604 39922 45193 42604 39923 54769 51628 48425 54773 51631 48428 54774 51633 48429 65264 61527 57753 65273 61535 57759 65276 61537 57762 76556 72195 67820 76580 72212 67832 76586 72218 67837 88503 83492 78488 88555 83533 78517 88568 83543 78526 94665 89337 84002 94745 89394 84046 94762 89409 84058
100940
95272 89616
101060
95356 89677
101080
95375 89694
Catalog 1112-2 McQuay Enity Horizontal Water Source Heat Pumps Page 17 of 42
Cooling Capacity Data – Large Horizontal, Size 096 @ 3000 SCFM
EWT GPM WPD
EA LWT TOT SEN kW EER TOT kW EER THR
30
40
50
60
70
80
85
90
100
110
16.0
24.0
32.0
16.0
24.0
32.0
16.0
24.0
32.0
16.0
24.0
32.0
16.0
24.0
32.0
16.0
24.0
32.0
16.0
24.0
32.0
16.0
24.0
32.0
16.0
24.0
32.0
16.0
24.0
32.0
System ISO
63
12.0
26.1
45.4
12.0
26.1
45.4
12.0
26.1
45.4
12.0
26.1
45.4
12.0
26.1
45.4
12.0
26.1
45.4
12.0
26.1
45.4
12.0
26.1
45.4
12.0
26.1
45.4
12.0
26.1
45.4
75 80 85 75 80 85 75 80 85 75 80 85 75 80 85 75 80 85 75 80 85 75 80 85 75 80 85 75 80 85 75 80 85 75 80 85 75 80 85 75 80 85 75 80 85 75 80 85 75 80 85 75 80 85 75 80 85 75 80 85 75 80 85 75 80 85 75 80 85 75 80 85 75 80 85 75 80 85 75 80 85 75 80 85 75 80 85 75 80 85
42.4
67
42.9
71
43.4
63
40.8
67
41.2
71
41.5
63
39.9
67
40.2
71
40.4
63
52.4
67
52.8
71
53.3
63
50.8
67
51.1
71
51.5
63
49.8
67
50.1
71
50.4
63
62.3
67
62.7
71
63.2
63
60.7
67
61.1
71
61.4
63
59.8
67
60.1
71
60.3
63
72.2
67
72.6
71
73.1
63
70.6
67
71.0
71
71.3
63
69.7
67
70.0
71
70.3
63
82.1
67
82.5
71
82.9
63
80.6
67
80.9
71
81.2
63
79.6
67
79.9
71
80.2
63
91.9
67
92.3
71
92.8
63
90.5
67
90.8
71
91.1
63
89.6
67
89.8
71
90.1
63
96.9
67
97.3
71
97.7
63
95.4
67
95.7
71
96.0
63
94.5
67
94.8
71
95.0
63
101.8
67
102.2
71
102.6
63
100.4
67
100.7
71
101.0
63
99.5
67
99.7
71
100.0
63
111.7
67
112.1
71
112.5
63
110.3
67
110.6
71
110.9
63
109.4
67
109.7
71
109.9
63
121.6
67
122.0
71
122.3
63
120.2
67
120.5
71
120.8
63
119.4
67
119.6
71
119.8
108620
117220 126090 109060
117560 126660 109290
117750 127040 105330
113730 122660 105820
114320 123350 106130
114670 123770 101730 109840
118350 102220
110410
119070 102530
110760
119500
97953
105680
113850
98457
106270
114530
98762
106620
114950
93916 101300 109130
94423 101890 109820
94733 102260
110240
89641
96678 104150
90142
97272 104820
90456
97628 105240
87400
94287 101570
87911
94871 102250
88220
95230 102660
85116
91840
98957
85620
92427
99620
85933
92780 100030
80462
86832
93598
80945
87387
94235
81245
87735
94629
75544
81629
88028
76008
82161
88671
76300
82493
89051
73435 75836 78008 73658 76028 78311 73778 76151 78489 71786 74192 76420 72032 74468 76720 72183 74634 76900 70009 72436 74624 70258 72680 74922 70412 72836 75098 68125 70495 72671 68380 70769 72968 68535 70938 73150 66103 68455 70646 66354 68727 70938 66509 68897 71116 63999 66339 68539 64242 66610 68822 64395 66772 68997 62891 65254 67461 63147 65520 67744 63301 65683 67915 61741 64117 66347 61998 64391 66630 62157 64555 66804 59397 61790 64049 59638 62047 64320 59788 62207 64489 56925 59360 61673 57160 59615 61948 57310 59775 62110
2.58
2.62
2.58
2.50
2.54
2.18
2.45
2.48
1.93
3.08
3.12
3.16
3.01
3.04
3.08
2.97
3.00
3.03
3.57
3.61
3.64
3.51
3.54
3.56
3.47
3.49
3.52
4.09
4.12
4.15
4.02
4.05
4.07
3.98
4.00
4.02
4.65
4.67
4.69
4.57
4.59
4.61
4.53
4.55
4.57
5.27
5.29
5.31
5.19
5.20
5.22
5.14
5.16
5.17
5.61
5.63
5.65
5.53
5.54
5.56
5.48
5.49
5.50
5.98
5.99
6.01
5.89
5.90
5.91
5.84
5.85
5.86
6.80
6.80
6.81
6.71
6.71
6.71
6.65
6.65
6.65
7.74
7.73
7.73
7.65
7.64
7.62
7.59
7.57
7.56
30.4
32.4
35.3
31.2
33.3
39.8
31.7
33.8
43.4
25.8
27.6
29.5
26.4
28.3
30.3
26.8
28.7
30.7
22.2
23.8
25.5
22.7
24.3
26.1
22.9
24.7
26.5
19.2
20.7
22.1
19.6
21.1
22.6
19.8
21.3
22.9
16.6
17.9
19.2
16.9
18.2
19.6
17.1
18.4
19.8
14.3
15.4
16.5
14.6
15.7
16.8
14.7
15.9
17.1
13.2
14.2
15.3
13.5
14.5
15.6
13.6
14.7
15.8
12.2
13.1
14.1
12.4
13.4
14.4
12.6
13.5
14.6
10.3
11.1
12.0
10.5
11.3
12.2
10.6
11.5
12.4
8.6
9.3
10.1
8.8
9.5
10.3
8.9
9.6
10.4
111517 120117 128987 111957 120457 129557 112187 120647 129937 108227 116627 125557 108717 117217 126247 109027 117567 126667 104627 112737 121247 105117 113307 121967 105427 113657 122397 100850 108577 116747 101354 109167 117427 101659 109517 117847
96813 104197 112027
97320 104787 112717
97630 105157 113137
92538
99575 107047
93039 100169 107717
93353 100525 108137
90297
97184 104467
90808
97768 105147
91117
98127 105557
88013
94737 101854
88517
95324 102517
88830
95677 102927
83359
89729
96495
83842
90284
97132
84142
90632
97526
78441
84526
90925
78905
85058
91568
79197
85390
91948
2.55
2.60
2.55
2.47
2.51
2.16
2.43
2.46
1.91
3.06
3.10
3.14
2.99
3.02
3.05
2.95
2.98
3.00
3.55
3.59
3.62
3.49
3.51
3.54
3.45
3.47
3.50
4.07
4.09
4.12
4.00
4.02
4.05
3.96
3.98
4.00
4.62
4.64
4.67
4.55
4.57
4.59
4.51
4.53
4.55
5.24
5.26
5.28
5.17
5.18
5.20
5.12
5.14
5.15
5.59
5.60
5.62
5.51
5.52
5.53
5.46
5.47
5.48
5.96
5.97
5.99
5.87
5.88
5.89
5.82
5.83
5.84
6.77
6.78
6.79
6.69
6.69
6.69
6.64
6.63
6.63
7.72
7.71
7.71
7.62
7.61
7.60
7.57
7.55
7.54
33.3
35.4
38.5
31.6
33.6
40.1
28.0
29.8
37.2
28.1
30.0
31.9
26.8
28.7
30.6
24.1
25.8
27.6
24.1
25.7
27.5
23.1
24.7
26.5
21.0
22.5
24.1
20.8
22.2
23.7
20.0
21.4
23.0
18.3
19.7
21.1
17.9
19.2
20.5
17.3
18.6
19.9
16.0
17.2
18.5
15.3
16.4
17.6
14.9
16.0
17.2
13.9
15.0
16.1
14.2
15.2
16.3
13.8
14.8
15.9
12.9
13.9
14.9
13.0
14.0
15.0
12.8
13.7
14.7
12.0
12.9
13.9
11.0
11.8
12.7
10.8
11.6
12.5
10.2
11.0
11.9
9.2
9.9
10.6
9.1
9.8
10.6
8.8
9.5
10.3
117180 125900 134610 117360 125970 133930 117450 126000 133500 115440 123950 133000 115720 124300 133430 115890 124510 133690 113360 121570 130180 113660 121920 130650 113840 122130 130930 111180 118980 127230 111480 119350 127670 111650 119570 127940 108870 116310 124210 109150 116670 124650 109320 116890 124920 106520 113620 121140 106780 113950 121550 106950 114150 121800 105350 112290 119620 105610 112610 120010 105770 112800 120250 104230 110990 118140 104470 111290 118510 104620 111480 118740 102140 108530 115310 102350 108790 115630 102480 108950 115840 100200 106260 112650 100370 106480 112940 100480 106620 113120
Page 18 of 42 McQuay Ennity Horizontal Water Source Heat Pumps Catalog 1112-2
Heating Capacity Data – Large Horizontal, Size 096 @ 3000 SCFM
EWT GPM WPD
EA LWT TOT kW COP TOT kW COP THA
16.0
20
30
40
50
60
70
80
85
90
24.0
32.0
16.0
24.0
32.0
16.0
24.0
32.0
16.0
24.0
32.0
16.0
24.0
32.0
16.0
24.0
32.0
16.0
24.0
32.0
16.0
24.0
32.0
16.0
24.0
32.0
System ISO
60
18.0
12.0
26.1
45.4
12.0
26.1
45.4
12.0
26.1
45.4
12.0
26.1
45.4
12.0
26.1
45.4
12.0
26.1
45.4
12.0
26.1
45.4
12.0
26.1
45.4
12.0
26.1
45.4
18.1
18.2
18.5
18.6
18.6
18.8
18.9
18.9
27.6
27.7
27.8
28.2
28.3
28.3
28.5
28.6
28.7
37.1
37.2
37.3
37.8
37.9
38.0
38.2
38.3
38.4
46.5
46.6
46.8
47.4
47.5
47.6
47.9
48.0
48.1
55.8
56.0
56.2
56.9
57.0
57.2
57.5
57.6
57.7
65.1
65.4
65.6
66.3
66.5
66.7
67.1
67.2
67.4
74.4
74.6
74.9
75.8
76.0
76.2
76.6
76.8
76.9
79.0
79.2
79.5
80.5
80.7
80.9
81.4
81.5
81.7
83.5
83.8
84.2
85.1
85.4
85.6
86.1
86.3
86.5
47887 47219 46493 47908 47237 46507 47913 47242 46512 56884 56025 55080 56910 56045 55101 56928 56067 55122 66937 65849 64645 66989 65896 64686 67013 65917 64709 78160 76787 75282 78238 76852 75345 78291 76896 75380 90510 88768 86916 90639 88883 87018 90709 88951
87085 103970 101800
99534 104170 101980
99693 104270 102070
99776 118490 115830 113080 118780 116090 113290 118950 116240 113420 126110 123210 120130 126460 123530 120400 126650 123710 120560 134000 130780 127410 134410 131160 127740 134630 131360 127930
70 80 60 70 80 60 70 80 60 70 80 60 70 80 60 70 80 60 70 80 60 70 80 60 70 80 60 70 80 60 70 80 60 70 80 60 70 80 60 70 80 60 70 80 60 70 80 60 70 80 60 70 80 60 70 80 60 70 80 60 70 80 60 70 80 60 70 80 60 70 80 60 70 80 60 70 80 60 70 80
3.46
3.77
4.07
3.46
3.77
4.07
3.46
3.77
4.07
3.76
4.12
4.47
3.76
4.12
4.47
3.76
4.12
4.47
4.05
4.47
4.87
4.05
4.47
4.88
4.05
4.47
4.88
4.34
4.83
5.29
4.34
4.83
5.29
4.34
4.83
5.29
4.63
5.18
5.70
4.64
5.18
5.71
4.64
5.18
5.71
4.92
5.52
6.11
4.93
5.52
6.11
4.93
5.53
6.11
5.21
5.86
6.50
5.21
5.86
6.51
5.21
5.87
6.51
5.34
6.03
6.68
5.35
6.03
6.69
5.35
6.04
6.70
5.48
6.19
6.87
5.48
6.20
6.88
5.49
6.20
6.88
3.1
2.7
2.4
3.1
2.7
2.4
3.1
2.7
2.4
3.5
3.0
2.6
3.5
3.0
2.6
3.5
3.0
2.6
3.9
3.3
2.9
3.9
3.3
2.9
3.9
3.3
2.9
4.3
3.7
3.2
4.3
3.7
3.2
4.3
3.7
3.2
4.7
4.0
3.5
4.7
4.0
3.5
4.7
4.0
3.5
5.2
4.4
3.8
5.2
4.4
3.8
5.2
4.4
3.8
5.7
4.8
4.1
5.7
4.8
4.1
5.7
4.8
4.1
5.9
5.0
4.3
5.9
5.0
4.3
6.0
5.0
4.3
6.2
5.2
4.5
6.2
5.2
4.5
6.2
5.2
4.5
45484 44816 44090 45505 44834 44104 45510 44839 44109 54481 53622 52677 54507 53642 52698 54525 53664 52719 64534 63446 62242 64586 63493 62283 64610 63514 62306 75757 74384 72879 75835 74449 72942 75888 74493 72977 88107 86365 84513 88236 86480 84615 88306 86548 84682
101567
99397 97131
101767
99577 97290
101867
99667
97373 116087 113427 110677 116377 113687 110887 116547 113837 111017 123707 120807 117727 124057 121127 117997 124247 121307 118157 131597 128377 125007 132007 128757 125337 132227 128957 125527
2.93
3.22
3.51
3.15
3.45
3.73
3.52
3.81
4.10
3.22
3.57
3.91
3.45
3.80
4.13
3.81
4.16
4.50
3.51
3.92
4.32
3.74
4.15
4.54
4.10
4.51
4.91
3.81
4.28
4.73
4.03
4.51
4.96
4.40
4.87
5.32
4.10
4.63
5.15
4.33
4.86
5.37
4.69
5.22
5.74
4.39
4.97
5.55
4.62
5.20
5.78
4.98
5.57
6.14
4.67
5.31
5.94
4.90
5.54
6.17
5.26
5.91
6.54
4.81
5.48
6.13
5.04
5.71
6.36
5.40
6.08
6.72
4.94
5.64
6.31
5.17
5.87
6.55
5.54
6.24
6.91
3.1
2.9
2.7
3.0
2.7
2.5
2.7
2.5
2.4
3.5
3.2
2.9
3.3
3.1
2.8
3.1
2.8
2.6
3.9
3.5
3.2
3.7
3.4
3.1
3.5
3.2
2.9
4.3
3.9
3.5
4.1
3.7
3.4
3.9
3.5
3.2
4.8
4.3
3.8
4.6
4.1
3.7
4.3
3.8
3.5
5.2
4.6
4.1
5.0
4.5
4.0
4.7
4.2
3.8
5.7
5.0
4.5
5.5
4.8
4.3
5.1
4.6
4.1
5.9
5.2
4.6
5.7
5.0
4.5
5.4
4.8
4.3
6.2
5.4
4.8
6.0
5.2
4.7
5.6
5.0
4.4
36297 34611 32886 36315 34626 32898 36320 34631 32903 44310 42246 40134 44333 42263 40152 44349 42282 40169 53393 50891 48332 53441 50934 48368 53462 50952 48387 63631 60636 57576 63704 60695 57632 63753 60735 57663 75000 71443 67832 75120 71549 67922 75185 71610 67982 87491 83330 79092 87672 83494 79236 87773 83574 79311
101070
96223 91324
101340
96461 91519
101500
96599
91637 108240 103040
97761 108570 103330
98007 108750 103500
98152 115670 110080 104420 116060 110420 104720 116260 110610 104890
Catalog 1112-2 McQuay Enity Horizontal Water Source Heat Pumps Page 19 of 42
Cooling Capacity Data – Large Horizontal, Size 120 @ 4000 SCFM
EWT GPM WPD
EA LWT TOT SEN kW EER TOT kW EER THR
30
40
50
60
70
80
85
90
100
110
20.0
30.0
40.0
20.0
30.0
40.0
20.0
30.0
40.0
20.0
30.0
40.0
20.0
30.0
40.0
20.0
30.0
40.0
20.0
30.0
40.0
20.0
30.0
40.0
20.0
30.0
40.0
20.0
30.0
40.0
Page 20 of 42 McQuay Ennity Horizontal Water Source Heat Pumps Catalog 1112-2
System ISO
63
18.4
40.1
69.6
18.4
40.1
69.6
18.4
40.1
69.6
18.4
40.1
69.6
18.4
40.1
69.6
18.4
40.1
69.6
18.4
40.1
69.6
18.4
40.1
69.6
18.4
40.1
69.6
18.4
40.1
69.6
75 80 85 75 80 85 75 80 85 75 80 85 75 80 85 75 80 85 75 80 85 75 80 85 75 80 85 75 80 85 75 80 85 75 80 85 75 80 85 75 80 85 75 80 85 75 80 85 75 80 85 75 80 85 75 80 85 75 80 85 75 80 85 75 80 85 75 80 85 75 80 85 75 80 85 75 80 85 75 80 85 75 80 85 75 80 85 75 80 85
41.4
67
41.9
71
42.4
63
39.8
67
40.2
71
40.5
63
38.9
67
39.2
71
39.4
63
51.4
67
51.8
71
52.3
63
49.8
67
50.1
71
50.5
63
48.8
67
49.1
71
49.4
63
61.3
67
61.7
71
62.2
63
59.7
67
60.1
71
60.4
63
58.8
67
59.1
71
59.3
63
71.1
67
71.5
71
71.9
63
69.9
67
70.2
71
70.6
63
69.1
67
69.4
71
69.6
63
81.0
67
81.4
71
81.9
63
79.8
67
80.2
71
80.5
63
79.0
67
79.3
71
79.6
63
90.9
67
91.3
71
91.7
63
89.7
67
90.1
71
90.4
63
89.0
67
89.2
71
89.5
63
95.8
67
96.2
71
96.7
63
94.7
67
95.0
71
95.3
63
93.9
67
94.2
71
94.5
63
100.8
67
101.2
71
101.6
63
99.6
67
99.9
71
100.3
63
98.9
67
99.1
71
99.4
63
110.7
67
111.0
71
111.4
63
109.5
67
109.8
71
110.1
63
108.8
67
109.0
71
109.3
63
120.5
67
120.9
71
121.2
63
119.4
67
119.7
71
120.0
63
118.7
67
118.9
71
119.2
108620
117220 126090 109060
117560 126660 109290
117750 127040 105330
113730 122660 105820
114320 123350 106130
114670 123770 101730 109840
118350 102220
110410
119070 102530
110760
119500 126540 136290 146750 127170 137040 147640 127590 137550 148270 120880 130240 140250 121530 131020 141080 121970 131500 141630
115140 123960 133470
115720 124660 134310
116120 125140 134880
112220 120840 130050
112770 121490 130850
113160 121940 131380 109130
117610 126640 109760
118300 127380
110170
118730 127890 102870
110890
119410 103420
111540 120170 103810
112000 120700
96438
104070
112150
97034
104740
112870
97400
105160
113360
73435 75836 78008 73658 76028 78311 73778 76151 78489 71786 74192 76420 72032 74468 76720 72183 74634 76900 70009 72436 74624 70258 72680 74922 70412 72836 75098 90704 93864 96862 90993 94180 97212 91187 94399 97456 88080 91301 94342 88379 91627 94662 88581 91832 94880 85486 88678 91765 85749 88978 92090 85932 89180 92308 84159 87362 90449 84408 87633 90755 84585 87821 90961 82754 86013 89146 83039 86305 89428 83226 86485 89622 79863 83169 86326 80124 83447 86622 80305 83642 86831 76854 80219 83446 77127 80504 83731 77296 80685 83927
2.58
2.62
2.58
2.50
2.54
2.18
2.45
2.48
1.93
3.08
3.12
3.16
3.01
3.04
3.08
2.97
3.00
3.03
3.57
3.61
3.64
3.51
3.54
3.56
3.47
3.49
3.52
6.27
6.29
6.24
6.16
6.15
6.06
6.08
6.05
5.94
7.21
7.32
7.40
7.11
7.20
7.27
7.03
7.12
7.18
8.06
8.25
8.43
7.98
8.15
8.31
7.92
8.08
8.23
8.46
8.67
8.89
8.38
8.58
8.79
8.33
8.52
8.71
8.87
9.10
9.33
8.79
9.01
9.24
8.73
8.95
9.17
9.72
9.96
10.21
9.64
9.88
10.12
9.59
9.82
10.05
10.60
10.85
11.12
10.52
10.77
11.03
10.47
10.71
10.97
30.4
32.4
35.3
31.2
33.3
39.8
31.7
33.8
43.4
25.8
27.6
29.5
26.4
28.3
30.3
26.8
28.7
30.7
22.2
23.8
25.5
22.7
24.3
26.1
22.9
24.7
26.5
20.2
21.7
23.5
20.6
22.3
24.4
21.0
22.7
25.0
16.8
17.8
18.9
17.1
18.2
19.4
17.3
18.5
19.7
14.3
15.0
15.8
14.5
15.3
16.2
14.7
15.5
16.4
13.3
13.9
14.6
13.5
14.2
14.9
13.6
14.3
15.1
12.3
12.9
13.6
12.5
13.1
13.8
12.6
13.3
13.9
10.6
11.1
11.7
10.7
11.3
11.9
10.8
11.4
12.0
9.1
9.6
10.1
9.2
9.7
10.2
9.3
9.8
10.3
111517 120117 128987 111957 120457 129557 112187 120647 129937 108227 116627 125557 108717 117217 126247 109027 117567 126667 104627 112737 121247 105117 113307 121967 105427 113657 122397 129437 139187 149647 130067 139937 150537 130487 140447 151167 123777 133137 143147 124427 133917 143977 124867 134397 144527 118037 126857 136367 118617 127557 137207 119017 128037 137777 115117 123737 132947 115667 124387 133747 116057 124837 134277 112027 120507 129537 112657 121197 130277 113067 121627 130787 105767 113787 122307 106317 114437 123067 106707 114897 123597
99335 106967 115047
99931 107637 115767 100297 108057 116257
2.55
2.60
2.55
2.47
2.51
2.16
2.43
2.46
1.91
3.06
3.10
3.14
2.99
3.02
3.05
2.95
2.98
3.00
3.55
3.59
3.62
3.49
3.51
3.54
3.45
3.47
3.50
6.22
6.24
6.19
6.11
6.10
6.01
6.04
6.01
5.89
7.16
7.27
7.35
7.06
7.16
7.22
6.99
7.08
7.14
8.02
8.20
8.38
7.93
8.11
8.26
7.88
8.04
8.19
8.42
8.63
8.84
8.34
8.54
8.74
8.29
8.48
8.67
8.83
9.05
9.28
8.75
8.96
9.19
8.70
8.91
9.13
9.67
9.92
10.16
9.60
9.83
10.07
9.55
9.78
10.01
10.56
10.81
11.07
10.48
10.72
10.98
10.43
10.67
10.92
33.3
35.4
38.5
31.6
33.6
40.1
28.0
29.8
37.2
28.1
30.0
31.9
26.8
28.7
30.6
24.1
25.8
27.6
24.1
25.7
27.5
23.1
24.7
26.5
26.1
32.0
34.2
22.9
24.5
26.6
21.4
23.1
25.2
18.7
20.2
22.1
18.8
19.9
21.1
17.7
18.8
20.1
15.7
16.8
17.9
15.9
16.6
17.5
15.0
15.8
16.7
13.5
14.3
15.1
14.7
15.4
16.1
14.0
14.6
15.4
12.6
13.3
14.0
13.6
14.2
14.9
13.0
13.6
14.3
11.7
12.3
13.0
11.6
12.2
12.7
11.1
11.7
12.3
10.2
10.7
11.3
10.0
10.4
11.0
9.6
10.1
10.6
8.8
9.3
9.8
97180 105900 114610
97360 105970 113930
97450 106000 113500
95440 103950 113000
95720 104300 113430
95890 104510 113690
93360 101570 110180
93660 101920 110650
93840 102130 110930 126880 136700 147000 127150 136990 147310 127310 137200 147530 124260 134000 144270 124580 134390 144670 124780 134620 144930 121300 130720 140810 121600 131110 141280 121810 131360 141590 119680 128980 138890 119980 129340 139360 120190 129580 139660 117920 127140 136900 118270 127530 137340 118510 127770 137630 114390 123220 132540 114700 123590 132990 114920 123850 133300 110830 119280 128220
111160 119670 128650 111370 119910 128940
Heating Capacity Data – Large Horizontal, Size 120 @ 4000 SCFM
EWT GPM WPD
EA LWT TOT kW COP TOT kW COP THA
20.0
20
30
40
50
60
70
80
85
90
30.0
40.0
20.0
30.0
40.0
20.0
30.0
40.0
20.0
30.0
40.0
20.0
30.0
40.0
20.0
30.0
40.0
20.0
30.0
40.0
20.0
30.0
40.0
20.0
30.0
40.0
System ISO
60
17.9
18.4
40.1
69.6
18.4
40.1
69.6
18.4
40.1
69.6
18.4
40.1
69.6
18.4
40.1
69.6
18.4
40.1
69.6
18.4
40.1
69.6
18.4
40.1
69.6
18.4
40.1
69.6
18.0
18.1
18.3
18.4
18.5
16.9
17.0
17.2
22.6
22.9
23.2
25.0
25.2
25.5
26.2
26.4
26.6
31.4
31.7
32.1
34.1
34.3
34.6
35.5
35.8
36.0
40.0
40.4
40.8
43.1
43.4
43.7
44.8
45.0
45.3
48.6
49.0
49.5
52.0
52.3
52.7
53.9
54.2
54.5
57.0
57.5
58.0
60.9
61.3
61.7
63.0
63.3
63.6
65.3
65.9
66.5
69.7
70.1
70.6
72.0
72.4
72.7
69.4
70.1
70.7
74.1
74.5
75.0
76.5
76.9
77.3
73.5
74.2
74.9
78.4
78.9
79.4
81.0
81.4
81.8
72324 74810 78748 72324 74810 78748 79165 77726 76195 92622 91218 89309 93029 91218 89309 93029 91218
89309 105900 104410 102750 108400 106150 103770 108400 106150 103770 120450 118680 116710 125080 122570 119640 125350 122570 119640 135950 133850 131550 141790 139280 136550 143920 140510 136940 137590 135020 132270 144600 141610 143400 153510 149870 155580 170110 167100 163950 178410 174860 171140 183210 179240 175170 179110 175910 172510 188320 184330 180330 193420 189150 184760 188450 184850 181270 198420 194160 189760 203910 199260 194550
70 80 60 70 80 60 70 80 60 70 80 60 70 80 60 70 80 60 70 80 60 70 80 60 70 80 60 70 80 60 70 80 60 70 80 60 70 80 60 70 80 60 70 80 60 70 80 60 70 80 60 70 80 60 70 80 60 70 80 60 70 80 60 70 80 60 70 80 60 70 80 60 70 80 60 70 80 60 70 80
6.78
8.26
10.20
6.78
8.26
10.20
5.09
5.56
6.02
5.46
6.02
6.55
5.48
6.02
6.55
5.48
6.02
6.55
5.81
6.45
7.06
5.87
6.50
7.10
5.87
6.50
7.10
6.17
6.88
7.56
6.28
6.98
7.66
6.28
6.98
7.66
6.53
7.30
8.05
6.66
7.45
8.21
6.71
7.48
8.22
6.90
7.73
8.54
7.05
7.91
8.73
7.14
7.98
8.79
7.28
8.16
9.04
7.44
8.35
9.23
7.55
8.45
9.34
7.45
8.37
9.27
7.65
8.56
9.47
7.75
8.68
9.60
7.65
8.57
9.50
7.85
8.79
9.71
7.96
8.90
9.83
2.2
1.7
1.3
2.2
1.7
1.3
3.6
3.1
2.8
4.0
3.5
3.0
4.0
3.5
3.0
4.0
3.5
3.0
4.4
3.8
3.3
4.5
3.8
3.3
4.5
3.8
3.3
4.8
4.1
3.6
4.9
4.2
3.6
4.9
4.2
3.6
5.2
4.4
3.8
5.3
4.5
3.9
5.3
4.5
3.9
5.5
4.7
4.1
5.7
4.8
4.2
5.8
4.9
4.2
5.9
5.0
4.4
6.1
5.2
4.5
6.2
5.3
4.5
6.1
5.2
4.5
6.3
5.4
4.6
6.4
5.4
4.7
6.3
5.4
4.6
6.4
5.5
4.8
6.6
5.6
4.8
70722 73208 77146 70722 73208 77146 77563 76124 74593 91020 89616 87707 91427 89616 87707 91427 89616
87707 104298 102808 101148 106798 104548 102168 106798 104548 102168 118848 117078 115108 123478 120968 118038 123748 120968 118038 134348 132248 129948 140188 137678 134948 142318 138908 135338 135988 133418 130668 142998 140008 141798 151908 148268 153978 168508 165498 162348 176808 173258 169538 181608 177638 173568 177508 174308 170908 186718 182728 178728 191818 187548 183158 186848 183248 179668 196818 192558 188158 202308 197658 192948
6.41
7.88
9.81
6.89
8.36
10.29
4.62
5.08
5.53
5.00
5.55
6.07
5.01
5.55
6.07
5.01
5.55
6.07
5.34
5.97
6.58
5.40
6.02
6.61
5.40
6.02
6.61
5.70
6.40
7.08
5.81
6.51
7.17
5.81
6.51
7.17
6.06
6.83
7.57
6.19
6.98
7.73
6.24
7.01
7.74
6.43
7.26
8.06
6.58
7.43
8.25
6.67
7.51
8.31
6.81
7.69
8.55
6.97
7.87
8.74
7.08
7.98
8.86
6.99
7.90
8.78
7.18
8.08
8.99
7.28
8.21
9.11
7.18
8.09
9.02
7.38
8.32
9.23
7.49
8.43
9.35
2.7
2.4
2.1
2.6
2.2
2.0
3.1
2.8
2.6
4.3
3.9
3.5
4.0
3.6
3.3
3.5
3.2
2.9
4.6
4.2
3.8
4.4
3.9
3.6
3.8
3.5
3.2
5.0
4.5
4.0
4.8
4.3
3.9
4.2
3.8
3.5
5.4
4.8
4.3
5.2
4.6
4.2
4.6
4.2
3.8
5.2
4.6
4.1
5.0
4.5
4.1
4.7
4.2
4.1
6.1
5.4
4.9
5.9
5.3
4.7
5.4
4.8
4.4
6.3
5.6
5.0
6.1
5.4
4.9
5.6
5.0
4.5
6.5
5.7
5.1
6.3
5.6
5.0
5.8
5.2
4.7
50336 48022 45656 50336 48022 45656 62661 59691 56674 74893 71677 68049 75261 71677 68049 75261 71677 68049 87043 83494 79844 89344 85066 80739 89345 85066 80739
100430
96357 92179
104720
99908 94799
104970
99909
94799 114780 110150 105420 120180 115090 109910 122160 116230 110260 130200 124930 119560 136730 130950 125080 140360 133970 127060 146500 140620 134620 154280 147780 141200 158710 151820 144860 154930 148740 142440 163510 156560 149600 168280 160970 153630 163640 157040 150440 172940 165620 158260 178080 170370 162640
Catalog 1112-2 McQuay Enity Horizontal Water Source Heat Pumps Page 21 of 42
Electrical Data & Physical Data
Table 7: Large Horizontal Unit
Unit Size Voltage/Hz/Phase
072
096
120
208/230-60-3
460-60-3 575-60-3 380-50-3
208/230-60-3
460-60-3 575-60-3 380-50-3
208/230-60-3
460-60-3 575-60-3 380-50-3
Table 8: Large Horizontal Size 072 - 120
Unit Size 072 096 120
Fan Wheel - D x W (In.) Fan Motor Horsepower Coil Face Area (Sq. Ft.) 9.0 9.0 10.5 Coil Rows
Refrigerant Charge (Oz.)
Compressor 2 53 55 60
Filter, (Qty.) Size (In.) Water Connections, Female NPT Condensate Connections, Female NPT
Weight, Operating (Lbs.) Weight, Shipping (Lbs.) 710 760 782
Compressor 1
(1) 10W x 20H
632 682 694
Compressor 1
Fan
Motor (HP)
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5 3 3 3 3
RLA LRA
14.7
6.6
4.6
6.6
15.3
6.9
5.4
6.8
17.4
8.6
6.5
8.6
(2) 28" × 231/2" × 2 (3) 28" × 19" × 2 (3) 28" × 19" × 2
88.0
44.0
30.0
46.0
83.1
41.0
33.0
43.0
110.0
52.0
38.9
51.5
13 × 13 13 × 12 16 × 15
1.5 1.5 3
3 3 3
55 55 60
11/4" FPT 11/4" FPT 11/4" FPT
7/8" 7/8" 7/8"
Compressor 2
RLA LRA
14.7
6.6
4.6
6.6
15.3
6.9
5.4
6.8
17.4
8.6
6.5
8.6
Fan Motor Total Unit
FLA FLA Voltage Circuit Amps Fuse Size
88.0
44.0
30.0
46.0
83.1
41.0
33.0
43.0
110.0
52.0
38.9
51.5
5.6
2.8
2.3
3.4
5.6
2.8
2.0
3.4
9.5
4.5
3.4
4.8
35.0
16.0
11.5
16.6
36.2
16.6
12.8
17.0
44.3
21.7
16.4
22.0
Minimum
187.0
416.0
520.0
342.0
187.0
416.0
520.0
342.0
187.0
416.0
520.0
342.0
Minimum
38.7
17.7
12.7
18.3
40.0
18.3
14.2
18.7
48.7
23.9
18.0
24.2
Maximum
50 20 15 20 50 25 15 25 60 30 20 30
Page 22 of 42 McQuay Large Horizontal Water Source Heat Pumps Catalog 1112-2
Operating Limits
Table 9: Air Limits - °F (English units)
Standard Range Geothermal Range Units Units
Cooling Min. Ambient Air 50ºF 50ºF 40ºF 40ºF Normal Ambient Air 80ºF 70ºF 80ºF 70ºF Max Ambient Air 100ºF 85ºF 100ºF 85ºF Min. Entering Air Normal Entering Air db/wb 80/67ºF 70ºF 80/67ºF 70ºF
Max Entering Air db/wb
1,2
50ºF 50ºF 50ºF 40ºF
1,2
100/83ºF 80ºF 100/83ºF 80ºF
Heating Cooling Heating
Table 10: Air Limits - °C (SI units)
Standard Range Geothermal Range Units Units
Cooling Min. Ambient Air 10ºC 10ºC 5ºC 5ºC Normal Ambient Air 27ºC 21ºC 27ºC 21ºC Max Ambient Air 38ºC 29ºC 38ºC 29ºC Min. Entering Air Normal Entering Air db/wb 27/19ºC 21ºC 27/19ºC 21ºC
Max Entering Air db/wb
1,2
10ºC 10ºC 10ºC 5ºC
1,2
38/28ºC 27ºC 38/28ºC 27ºC
Heating Cooling Heating
Table 11: Water - °F (English units)
Standard Range Geothermal Range Units Units
Cooling Min. Entering Water Normal Entering Water 85ºF 70ºF 77ºF 40ºF Max Entering Water 110ºF 90ºF 110ºF 90ºF
1,2
55ºF 55ºF 30ºF 20ºF
Heating Cooling Heating
Environment
This equipment is designed for indoor installation only. Sheltered locations such as attics, garages, etc., generally will not provide sufcient protection against extremes in temperature and/or humidity, and equipment performance, reliability, and service life may be adversely affected.
Power Supply
A voltage variation of +/-10% of nameplate voltage is acceptable. Three-phase system imbalance shall not exceed 2%.
Additional Information for Initial Start-Up Only
Standard Range Units:
Units are designed to start in an ambient of 50ºF (10ºC), with entering air at 50ºF (10ºC), with entering water at 70ºF (21ºC), with both air and water at the ow rates used in the ISO 13256-1 rating test, for initial start-up in winter.
Note: This is not a normal or continuous operating
condition. It is assumed that such a start-up is for the purpose of bringing the building space up to occupancy
temperature.
Table 12: Water - °C (SI units)
Standard Range Geothermal Range Units Units
Cooling Min. Entering... Water
Normal Entering Water 29ºC 21ºC 25ºC 4ºC Max Entering Water 43ºC 32ºC 43ºC 32ºC
1 At ARI ow rate
Maximum and minimum values may not be combined. If one value is
2
at maximum or minimum, the other two conditions may not exceed the normal condition for standard units. Extended range units may combine any two maximum conditions, but not more than two, with all other conditions being normal conditions.
1,2
13ºC 13ºC -1ºC -6ºC
Heating Cooling Heating
Geothermal Range Units:
Geothermal range heat pump conditioners are designed
to start in an ambient of 40ºF (5ºC), with entering air at 40ºF (5ºC), with entering water at 40ºF (5ºC), with both air and water at the ow rates used in the ISO 13256-1 rating test, for initial start-up in winter.
Note: This is not a normal or continuous operating
condition. It is assumed that such a start-up is for the purpose of bringing the building space up to occupancy temperature.
Catalog 1112-2 McQuay Large Horizontal Water Source Heat Pumps Page 23 of 42
Correction Factors
Table 13: Airow Correction Factors
55 Total Cooling Capacity
Sensible Cooling Capacity kW - Cooling Total Heat of Rejection
Total Heating Capacity kW - Heating
Total Heat of Absorption
0.935
0.779
0.925
0.931
0.912
1.025
0.908
60 65 70 75 80 85 90 95 100
0.942
0.803
0.933
0.939
0.921
1.022
0.918
0.948
0.828
0.942
0.946
0.931
1.019
0.928
0.955
0.852
0.950
0.954
0.940
1.017
0.938
Percent of Nominal Airow
0.962
0.877
0.959
0.961
0.950
1.014
0.948
0.969
0.901
0.967
0.969
0.960
1.011
0.958
0.976
0.926
0.976
0.976
0.969
1.009
0.968
0.983
0.950
0.984
0.984
0.979
1.006
0.978
0.990
0.975
0.993
0.991
0.988
1.003
0.988
1.000
1.000
1.000
1.000
1.000
1.000
1.000
105 Total Cooling Capacity
Sensible Cooling Capacity kW - Cooling Total Heat of Rejection
Total Heating Capacity kW - Heating Total Heat of Absorption
155 Total Cooling Capacity
Sensible Cooling Capacity kW - Cooling Total Heat of Rejection
Total Heating Capacity kW - Heating
Total Heat of Absorption
1.004
1.024
1.010
1.006
1.007
0.998
1.008
1.073
1.269
1.095
1.081
1.103
0.971
1.108
110 115 120 125 130 135 140 145 150
1.011
1.048
1.019
1.014
1.017
0.995
1.018
160 165 170 175 180 185 190 195
1.079
1.294
1.104
1.089
1.113
0.968
1.118
1.017
1.073
1.027
1.021
1.027
0.992
1.028
1.086
1.318
1.113
1.096
1.122
0.965
1.128
Percent of Nominal Airow
1.024
1.098
1.036
1.029
1.036
0.990
1.038
1.093
1.343
1.121
1.104
1.132
0.962
1.138
1.031
1.122
1.044
1.036
1.046
0.987
1.048
Percent of Nominal Airow
1.100
1.367
1.130
1.111
1.141
0.960
1.149
1.038
1.147
1.053
1.044
1.055
0.984
1.058
1.107
1.392
1.138
1.119
1.151
0.957
1.159
1.045
1.171
1.061
1.051
1.065
0.981
1.068
1.114
1.417
1.147
1.126
1.161
0.954
1.169
1.052
1.196
1.070
1.059
1.074
0.979
1.078
1.121
1.441
1.155
1.134
1.170
0.952
1.179
1.059
1.220
1.078
1.066
1.084
0.976
1.088
1.128
1.466
1.164
1.141
1.180
0.949
1.189
Antifreeze Correction Factors
Table 14: Ethylene Glycol
10% 20% 30% 40% 50%
Cooling Capacity 0.9950 0.9920 0.9870 0.9830 0.9790
Heating Capacity 0.9910 0.9820 0.9770 0.9690 0.9610 Pressure Drop 1.0700 1.1300 1.1800 1.2600 1.2800
1.066
1.245
1.087
1.074
1.094
0.973
1.098
Table 15: Propylene Glycol
Cooling Capacity 0.9900 0.9800 0.9700 0.9600 0.9500 Heating Capacity 0.9870 0.9750 0.9620 0.9420 0.9300 Pressure Drop 1.0700 1.1500 1.2500 1.3700 1.4200
10% 20% 30% 40% 50%
Table 16: Methanol
10% 20% 30% 40% 50%
Cooling Capacity 0.9980 0.9720 Heating Capacity 0.9950 0.9700 Pressure Drop 1.0230 1.0570
Table 17: Ethanol
10% 20% 30% 40% 50%
Cooling Capacity 0.9910 0.9510 Heating Capacity 0.9950 0.9600 Pressure Drop 1.0350 0.9600
Page 24 of 42 McQuay Large Horizontal Water Source Heat Pumps Catalog 1112-2
1100 RPM
1000 RPM
1
1/2
HP
900 RPM
800 RPM
1000 RPM
1
1/2
HP
900 RPM
800 RPM
1000 RPM
3
H
P
900 RPM
800 RPM
Do Not Select
0.00
0.50
0.00
1.00
1.50
2.00
2.50
500
2,000 3,000 4,000 5,000 6,000
1,500 2,000 3,500
cfm (cubic feet per minute)
cfm (cubic feet per minute)
cfm (cubic feet per minute)
EXTERNAL STATIC PRESSURE (INCHES OF WATER)
4,500 1,000 2,000 3,000 4,000 5,000
0.50
1.00
1.50
2.00
0.00
0.50
1.00
1.50
2.00
EXTERNAL STATIC PRESSURE (INCHES OF WATER)
EXTERNAL STATIC PRESSURE (INCHES OF WATER)
Performance Data
Figure 15: Large Horizontal – Size 072 Figure 16: Large Horizontal – Size 096
Figure 17: Large Horizontal – Size 120
cfm = 0.472 = L/s hp × 0.746 = kW inches × 249 Pa = mm
Table 18: 60 Hz
Unit Motor RPM Factory Motor Sheave Size HP Range Setting (RPM) Position
072 1.5 756-902 785 1 Turn Open 096 1.5 720-860 752 1½ Turns Open 120 3 756-901 815 3 Turns Open
Catalog 1112-2 McQuay Large Horizontal Water Source Heat Pumps Page 25 of 42
Table 19: 50 Hz
Unit Motor RPM Factory Motor Sheave Size HP Range Setting (RPM) Position
072 1.5 756-902 786 4 Turns Open 096 1.5 720-860 748 1½ Turns Open 120 3 756-902 815 3 Turns Open
Note: For wet coil, calculate face velocity (cfm ÷ coil face
area). Add the following exeternal static pressure for the corresponding face velocity
English Units SI Units 300 fpm = .20" 1.52 m/sec. = 49.8 Pa
400 fpm = .31" 2.03 m/sec. = 77.2 Pa 500 fpm = .44" 2.54 m/sec. = 109.6 Pa
Re-enter curve at the increased static pressure to determine
nal cfm.
A
B
D
E
F
C
2"
(51mm)
C
D
B
E
A
Dimensional Data
Figure 18: Large Horizontal – Size 072
Overall Unit Dimensions: 78" L × 44" W × 29" H (Add 2" For Hanger Bracket)
Figure 19: Dimensions - Straight Discharge
Figure 20: Dimensions - Filter Rack/Return Air Duct Collar
Unit Size A B C D E F
78" 44" 29" 15⅝" 13⅜" 3/4"
072
(1981mm) (1118mm) (737mm) (397mm) (346mm) (19mm)
Note: Straight discharge shown. Rearrange panels and blower position for end discharge. See IM 1060 for conversion instructions.
Unit Size A B C D E
45.12" 26.53" 3.20" 1.82" 1.50"
072
(1146mm) (674mm) (81mm) (46mm) (38mm)
Page 26 of 42 McQuay Large Horizontal Water Source Heat Pumps Catalog 1112-2
A
B
D
E
F
C
2"
(51mm)
Figure 21: Large Horizontal – Size 096
C
D
B
E
A
Dimensional Data
Overall Unit Dimensions: 78" L × 44" W × 29" H (Add 2" For Hanger Bracket)
Figure 22: Dimensions - Straight Discharge
Figure 23: Dimensions - Filter Rack/Return Air Duct Collar
Unit Size A B C D E F
78" 44" 29" 15½" 13⅜" 3/4"
096
(1981mm) (1118mm) (737mm) (394mm) (346mm) (19mm)
Note: Straight discharge shown. Rearrange panels and blower position for end discharge. See IM 1060 for conversion instructions.
Unit Size A B C D E
55.12" 26.53" 3.20" 1.82" 1.50"
096
(1400mm) (674mm) (81mm) (46mm) (38mm)
Catalog 1112-2 McQuay Large Horizontal Water Source Heat Pumps Page 27 of 42
C
D
B
E
A
A
B
D
E
F
C
2"
(51mm)
Dimensional Data
Figure 24: Large Horizontal – Size 120
Overall Unit Dimensions: 78" L × 44" W × 29" H (Add 2" For Hanger Bracket)
Figure 25: Dimensions - Straight Discharge
Figure 26: Dimensions - Filter Rack/Return Air Duct Collar
Unit Size A B C D E F
78" 44" 29" 18½" 16½" 7/8"
120
(1981mm) (1118mm) (737mm) (470mm) (419mm) (22mm)
Note: Straight discharge shown. Rearrange panels and blower position for end discharge. See IM 1060 for conversion instructions.
Unit Size A B C D E
55.12" 26.53" 3.20" 1.82" 1.50"
120
(1400mm) (674mm) (81mm) (46mm) (38mm)
Page 28 of 42 McQuay Large Horizontal Water Source Heat Pumps Catalog 1112-2
Figure 27: Large Horizontal - Hanger Brackets – Sizes 072 thru 120
By Others
By McQuay International
44"
(1118 mm)
42"
(1067 mm)
Fan
Assembly
2"
(51 mm)
2" (51 mm)
Airflow
Coil
Comp.
Comp.
80" (2032 mm)
Control Box
82" (2082 mm)
5/8" Threaded Rod (By Others)
Accessories
Supply and Return Water Hoses
Available as re rated construction in 2 or 3 foot (610
mm or 914 mm) lengths. Fire rated hoses have a synthetic
polymer core with an outer rated covering of stainless
steel. Fittings are steel. Assembly is “re rated” and tested according to UL 94 with a VO rating and ASTM 84. Each hose has MPT connections. Hoses have a swivel connection at one end and are available in 1¼" (32 mm) to match the FPT ttings on the unit.
Figure 28: Supply and Return Water Hoses
Condensate Hose Kit
Available as a long clear plastic hose with the necessary clamps and a MPT hose tting for connection to the FPT eld piping.
Figure 29: Condensate Hose Kit
Hose Specifications
Inner Tube: Fire retardant TRP (Thermosplastic Rubber)
tested to UL-94 with V-O rating.
Outer Braid: Stainless steel wire (ANSI 302/304)
Temperature range: 40°F to 200°F
Catalog 1112-2 McQuay Large Horizontal Water Source Heat Pumps Page 29 of 42
Accessories
Combination Balancing and Shutoff (Ball) Valves
Constructed of brass and rated at 400 psig (2758 kPa)
maximum working pressure. Valves have a built-in adjust-
able memory stop to eliminate rebalancing. Valves have FPT connections on both ends for connection to the water hose and to the eld piping.
Figure 30: Shutoff Ball Valve
Motorized Valve
Used in variable pumping type applications, the valve
actuator is wired and typically piped in the return water
line. On a call for heating or cooling, the valve will open prior to the compressor starting. The 24VAC valve actuator
must be wired directly to terminal block H8 on the MicroTech III controller. The valve is rated for 300
psig (2070 kPa).
Multiple Unit Control Panel (MUCP)
Figure 32: Multiple Unit Control Panel and Board
The Multiple Unit Control Panel (MUCP) is an acces­sory used when up to 3-units are controlled from a single
thermostat. The MUCP must be eld-installed in a remote
location, typically close to the units and convenient for
service access.
A maximum of 2 boards may be used together if up to
6-units must be connected and controlled from a single
thermostat.
Figure 33: Multiple Unit Control Panel Ciruit Board
Figure 31: 2-Way Motorized Valve
Field Installed Controls
The 2-way motorized water valve kit includes the valve
body, actuator and wire harness. The valve will only open on a call for heating or cooling. The valve is rated for 300 psig (2070 kPa).
A multiple unit control panel allows a single thermostat
to control up to three units in parallel.
The multiple unit control board provides the compo­nents necessary to protect the MicroTech III unit controller from electrical damage that may occur when using standard
off-the-shelf relays.
This version of the board uses VAC relays and should
not be used in combination with any other accessories or
equipment that require VDC connections to the “G”, “W1”, or “Y1” terminals.
Page 30 of 42 McQuay Large Horizontal Water Source Heat Pumps Catalog 1112-2
Accessories
These easy-to-operate comfort command centers bring
you a complete range of deluxe features. Features that
enable you to match temperature programming to your ap­plication, provide added convenience, and help save energy
and money. All packed into an extra rugged, highly reliable design that will look and perform like new for years to come.
Programmable Electronic Thermostat Two­Stage Heat/Two-Stage Cool, 7-Day Programmable
Figure 34: McQuay Part No. 668375301 (1-Pk, White with Wall Plate)
668375301 – Specications
Electrical Rating:
24 VAC (18 to 30 VAC/VDC)
1 amp maximum per terminal
4 amp maximum total load
Easy access terminal block
Temperature Control Ranges:
45ºF to 90ºF (7ºC to 32ºC), Accuracy: ± 1ºF (± 0.5ºC)
System Congurations:
Two-stage heat/Two-stage cool
Terminations:
R, C, W1, Y1, W2, Y2, G, S1, S2
Non-Programmable, Auto or Manual Change­over Two Stage Heat/Two Stage Cool, Night Setback Override
Figure 35: McQuay Part No. 668375401 (1-Pk, White with Wall Plate)
Features
Hardwired
Programmable and congurable
Simpleset programming for the entire week
Title 24 compliant/No batteries required
Relay Ouputs (minimum voltage drop in thermostat)
Clear, backlit display makes it easy to see time, temperature, and setpoint — even in the dark
Ideally suited for: Light commercial/residential (new construction/replacement)
Lockout feature prevents unwanted tampering
Optional remote temperature sensor available
(see page 32)
TM
feature enables easy copying of one day's
Features
Hardwired
Two-stage heat / two-stage cool systems
Backlit display
Field temperature calibration
Status indicator light
Relay outputs (minimum voltage drop in thermostat)
Night set-back override (used when unit is wired through a time clock on the U-terminal)
Optional remote temperature sensor available
(see page 32)
Catalog 1112-2 McQuay Large Horizontal Water Source Heat Pumps Page 31 of 42
Accessories
668375401 – Specications
Electrical Rating:
24 VAC (18 to 30 VAC/VDC)
1 amp maximum per terminal
4 amp maximum total load
Easy access terminal block
Temperature Control Ranges:
45ºF to 90ºF (7ºC to 32ºC), Accuracy: ± 1ºF (± 0.5ºC)
System Congurations:
Two-stage heat / two-stage cool
Timing:
Backlight Operation: 13 seconds after mode change or button press
Terminations:
+R, -C, W1, Y1, W2, Y2, G, O, S1, S2
Optional Remote Sensor
Figure 36: Part No. 667720401 – Used with Thermostat(s) 668375301 & 668375401
The fast, easy solution for temperature sensing problems.
For tamper prone areas
Poor airow areas
Troubled applications
Foam gasket prevents drafts through wall opening
Mounts to standard 2" x 4" outlet box
23/4"W x 41/2"H
MicroTech III Water Source Heat Pump Room Temperature Sensors
(Kit P/N 669529101, 669529201, 669529001 Figure 37: Room Temperature Sensors
Sensor 669529101 Sensor 669529201 Not Shown
Room temperature sensors provide electronic sensing of
room temperatures at wall locations. All sensor models feature a thermistor (10kΩ), a green LED for unit
status and tenant override button. Setpoint adjustment
potentiometer, heat and fan mode switches are optional
features.
669529001 669529101 669529201
Tenant Override Button
SPT Adj. Pot No Yes Yes Status LED Yes Yes Yes Fan and
Mode Switches
Notes:
1
55º to 95°F (13º to 35ºC) Setpoint Adjustment
2
-3º to +3ºF (-1.5º to +1.5ºC) Setpoint Adjustment
Feature
Sensor Part Numbers
Yes Yes Yes
No
Figure 38: MicroTech III Wall Sensor Details
Sensor 669529001
1
Yes
2
Yes
0 to 10 K ohm Potentiometer
3.75"
Status LED (Green)
4.59"
Mode Control Slide Switch
Page 32 of 42 McQuay Large Horizontal Water Source Heat Pumps Catalog 1112-2
Tenant Override Momentary Push Button Switch
Fan Control Slide Switch
Accessories
MicroTech III Unit Control Board
Low Voltage Terminal Strip (Circuit 1)
W1
Y1
W2
Y2
G
Thermostat
Terminals
-
C
TB2
24VAC
Alarm Output
Heat 2
Heat 1
Cool 2
Cool 1
Fan
Tenant Override
24VAC Common
C O G Y1
Y2 W1 W2 A R
+
R
MicroTech III Unit Control Board
Low Voltage Terminal Strip (Circuit 1)
W1
Y1
W2
Y2
G
Thermostat
Terminals
-
C
TB2
24VAC
Alarm Output
Heat 2
Heat 1
Cool 2
Cool 1
Fan
Tenant Override
24VAC Common
C O G Y1
Y2 W1 W2 A
R
+
R
O
Optional Water Source Heat Pump Room Temperature Sensors Wiring
Figure 39: Temperature Sensor Wiring to MicroTech III Unit Controller (Kit Part No.s 669529101, 669529201
Temperature Sensor Terminals
MicroTech III Unit Controller TB1 Terminals
Programmable Electronic Thermostat Two-Stage Heat/Two-Stage Cool, 7-Day Programmable
Figure 41: (Part No. 668375301)
Notes: Includes Thermostat and Wall Plate.
Figure 40: Temperature Sensor Wiring to MicroTech III Unit Controller (669529001)
Catalog 1112-2 McQuay Large Horizontal Water Source Heat Pumps Page 33 of 42
Temperature Sensor Terminals
MicroTech III Unit Controller TB1 Terminals
Non-Programmable, Auto or Manual Changeover Two Stage Heat/Two Stage Cool, Night Setback and Override Feature
Figure 42: (Part No. 668375401)
Override (Optional)
Note: An additional conductor is required between
"O" terminals for the override feature to work.
Accessories
Optional Remote Sensor Wiring to Thermostat(s) 668375301 or 668375401
Figure 43: Part No. 667720401
Thermostat
Remote Sensor
S2
S1
S1
S2
Wire 2
Cut R12 from
circuit board
Wire 1
Page 34 of 42 McQuay Large Horizontal Water Source Heat Pumps Catalog 1112-2
Typical Wiring Diagram
MicroTech™ III Controller with I/O Expansion Module & Communication Module 208/230, 460, 575-60-3 (1.5 hp or less)
Drawing No. 910101586
MicroTech III Control Board
JP1 Open (Normal) Shorted (Test Mode)
JP2 Shorted
Open (Std Range)
JP3
Shorted (Geothermal Range) JP4 Spare JP5 Open JP6 Open JP7 Spare JP8 Spare
JP1 Shorted JP2 Open JP3 Open JP4 Open JP5 Open JP6 Open JP7 Spare JP8 Spare
I/O Expansion Module
Legend
Item Description
CC1 Circuit 1 Compressor Contactor CC2 Circuit 2 Compressor Contactor CM1 Circuit 1 Compressor CM2 Circuit 2 Compressor
COS Condensate Overow Sensor
HP Circuit 1 High Pressure Switch HP2 Circuit 2 High Pressure Switch IOEXP I/O Expansion Board / Harness LED1 LED Annunciator / Harness LED2 LED Annunciator / Harness *RAT Return Air Temp Sensor *LWT Leaving Water Temp Sensor LP Circuit 1 Low Pressure Switch LP2 Circuit 2 Low Pressure Switch SLTS Circuit 1 Suction Line Temp Sensor SLTS2 Circuit 2 Suction Line Temp Sensor R1 Fan Motor Starter RV Circuit 1 Reversing Valve Solenoid RV2 Circuit 2 Reversing Valve Solenoid TB1 Power Terminal Block X1 75 VA Transformer *DAT Discharge Air Temp Sensor *EWT Entering Water Temp Sensor
Notes:
1. “Run/Prg” Jumper to be in “Run” position for normal operation
* Optional with Communication Module
Catalog 1112-2 McQuay Large Horizontal Water Source Heat Pumps Page 35 of 42
Typical Wiring Diagrams
MicroTech™ III Controller with I/O Expansion Module & Communication Module 208/230, 460, 575-60-3 (greater than 1.5 hp)
Drawing No. 910101589
MicroTech III Control Board
JP1 Open (Normal) Shorted (Test Mode) JP2 Shorted
Open (Std Range)
JP3
Shorted (Geothermal Range) JP4 Spare JP5 Open JP6 Open JP7 Spare JP8 Spare
JP1 Shorted JP2 Open JP3 Open JP4 Open JP5 Open JP6 Open JP7 Spare JP8 Spare
I/O Expansion Module
Legend
Item Description
CC1 Circuit 1 Compressor Contactor CC2 Circuit 2 Compressor Contactor CM1 Circuit 1 Compressor CM2 Circuit 2 Compressor
COS Condensate Overow Sensor
HP Circuit 1 High Pressure Switch HP2 Circuit 2 High Pressure Switch IOEXP I/O Expansion Board / Harness
LED1 LED Annunciator / Harness LED2 LED Annunciator / Harness *RAT Return Air Temp Sensor *LWT Leaving Water Temp Sensor LP Circuit 1 Low Pressure Switch LP2 Circuit 2 Low Pressure Switch SLTS Circuit 1 Suction Line Temp Sensor SLTS2 Circuit 2 Suction Line Temp Sensor R1 Fan Motor Starter RV Circuit 1 Reversing Valve Solenoid RV2 Circuit 2 Reversing Valve Solenoid TB1 Power Terminal Block X1 75 VA Transformer *DAT Discharge Air Temp Sensor *EWT Entering Water Temp Sensor
Notes:
1. “Run/Prg” Jumper to be in “Run” position for normal operation
* Optional with Communication Module
Page 36 of 42 McQuay Large Horizontal Water Source Heat Pumps Catalog 1112-2
Engineering Specications – Model CCH, CCW
General
Contractor shall furnish and install Water Source Heat Pumps as indicated on plans. Each unit shall be CETL Listed. Units less than 135,000 Btu/hr. total cooling capacity shall be ISO rated per Standard 13256-1. Each unit shall be fully run tested at the factory. Each unit shall be shipped on a wooden skid and covered with plastic.
Casing and Cabinet
The casing shall be constructed of heavy-gauge G-60 galvanized steel corner posts and steel panel construction with heavy
gauge steel base pan. The base pan shall have holes to accept eld installation of rubber or spring isolators. The interior shall be lined with 1/2" thick, 1½ lb. density glass ber. Multiple panels on front, back and sides shall provide access to compressor, control box, fan motor and fan assembly. Unit shall have a galvanized steel painted drain pan with a drain connection extending through the unit casing. Insulated drain pan shall act as a divider panel between the compressor and fan sections. Units shall have as standard a factory installed 2" thick lter brackets for side lter removal. Unit shall have multiple 2" thick throwaway lters. Cabinets shall have knockouts for entrance of line voltage and low voltage control wiring. Supply return water and condensate connections shall be copper FPT ttings and protrude through the casing.
R-410A Refrigerant Circuit
Units shall be dual circuit design containing scroll compressors, electronic expansion valve, water-to-refrigerant braze plate heat exchanger, reversing valve, nned tube heat exchanger (air coil), and safety controls. Non-ozone depleting R-410A refrigerant must be used.
Compressor(s) shall be scroll type with thermal overload protection and external rubber vibration isolation mounts. Air coil
shall be aluminum ns bonded to copper tubes. The braze plate heat exchanger shall be stainless steel plates with copper braz-
ing with a U.L. Listing and a 400 psig water side rating and a 450 psig refrigerant side rating. High and low side service valves shall be provided on each refrigerant circuit for measuring and charging of the refrigerant circuit.
Safety controls shall include a low suction temperature (freezestat), high refrigerant pressure and low refrigerant pressure
switches. Units shall be capable of being reset only by interrupting the power supply to the unit and not from the wall thermostat. Unit shall be capable of starting in an ambient of 40º F with entering water at 55º F standard range, 20º F extended range, with both air and water ow rates at the ISO rating conditions.
Electrical
A control enclosure shall be located within the unit and shall contain controls for compressor(s), reversing valves(s) and fan motor operation. A terminal block shall facilitate main power wiring connection. A 75 VA transformer shall supply the low voltage control circuit.
Unit shall be nameplated to accept time delay fuses for branch overcurrent protection of the power conductors.
Unit control system shall provide one or two stage cooling and heating as required by the setpoints of the wall thermostat. The unit shall be capable of providing an output signal to a unit-mounted LED annunciator to indicate a “fault” condition.
The control system shall be microprocessor based and provide the following:
■ Stand-alone operation
■ LonWorks communication capabilities (Must be LonMArk 3.4 certied)
■ BACnet communication capabilities (BACnet MS/TP Network)
Catalog 1112-2 McQuay Large Horizontal Water Source Heat Pumps Page 37 of 42
Engineering Specications – Model CCH, CCW
Fan and Motor Assembly
Units shall have a belt driven centrifugal fan. The fan housing shall protrude through the cabinet to facilitate eld duct con-
nection.
Solid-State Control System
MicroTech III Control System - Unit shall have a microprocessor- based control system. The unit control logic shall pro-
vide heating and cooling operation as required by the wall thermostat set point. The control system shall provide the following
for stand-alone operation:
1. The use of standard non-programmable or programmable wall thermostats.
2. Fan operation simultaneous with the compressor (fan interlock) regardless of thermostat logic.
3. Time delay compressor operation.
4. Delayed de-energizing of the reversing valve for quiet reversing valve operation.
5. Compressor short cycle protection of a minimum of three minutes before restart is possible.
6. Random unit start-up after coming off on unoccupied mode.
7. Single grounded wire connection for activation of the unoccupied or unit shutdown modes.
8. Night setback temperature setpoint input signal from the wall thermostat.
9. Override signal from wall thermostat to override unoccupied mode for 2 hours.
10. Brownout protection to suspend unit operation if the supply voltage drops below 80% of normal.
11. Condensate overow protection to suspend cooling operation in an event of a full drain pan.
12. Suspended compressor operation upon activation of the refrigerant pressure switch(es).
13. Cooling operation activated for 60 seconds upon activation of the low suction temperature sensor -
defrost cycle.
14. Method of defeating compressor, reversing valve and fan time delays for fast service diagnostics.
15. Remote reset - Provides means to remotely reset automatic lock-outs generated by high/low pressure faults and/or low temperature faults.
16. Fault Retry clears faults the 1st two times they occur within a 24-hour period and triggers automatic lock-out on 3rd fault.
MicroTech® III Control with I/O Expansion Module – I/O Expansion Module connects directly to the main MicroTech
III controller to provide control of the second refrigeration circuit.
MicroTech® III Control with LonWorks® Communication Module – Unit shall have a microprocessor-based control
system. The unit control logic shall communicate over a LonMark communications network. The unit controller is factory programmed [LonMark ® 3.4 certied Application Code the current standard for new applications] and tested with all the logic required to monitor and control heating and cooling operation. The controller sets the unit mode of operation, monitors water
and air temperatures, and can communicate fault conditions via a LonMark communications network. Units with the Micro­Tech III and LonWorks communication module include return air, discharge air and leaving water temperature sensors. Space
temperature sensor options include a set-point adjustment, tenant override button, and the capability of substituting the return
air sensor with a wall-mounted room sensor.
Microtech III Control w/ BACnet® Communication Module – Unit shall have a microprocessor-based control system.
The unit control logic shall communicate over a BACnet communications network. The BACnet communication module shall incorporate an Atmel ARM7 Thumb series MCU and be capable of supporting a full MSTP BACnet implementation. The
microprocessor shall also support SPI compatible communications with the MCU of the Microtech III controller. The physi-
cal interface to a BACnet BAS network shall be through an industry standard RS-485 transceiver capable of existing on an RS-485 network of up to 64 nodes. The unit controller is factory programmed and tested with all the logic required to monitor and control heating and cooling operation. The controller sets the unit mode of operation, monitors water and air temperatures, and can communicate fault conditions via a BACnet communications network. Units outtted with Microtech III and BACnet Communication modules include return air, discharge air and leaving water temperature sensors. Space temperature sensor
options include a set-point adjustment, tenant override button, and the capability of substituting the return air sensor with a
wall-mounted room temperature sensor.
Page 38 of 42 McQuay Large Horizontal Water Source Heat Pumps Catalog 1112-2
Engineering Specications – Model CCH, CCW
Each communicating unit controller performs the following unit operations:
■ Enable heating and cooling to maintain space temperature set point at the room sensor
■ Enable fan and compressor operation
■ Monitor all safety controls
■ Monitor discharge and return air temperature
■ Monitor leaving water temperature
■ Relay status of all vital unit functions
■ Support optional control outputs
Unit mounted LED annunciators aid in diagnosing unit operation by indicating the water source heat pump operating mode and alarm conditions. If there are no current alarm conditions, a green LED on the annunciator board will indicate normal unit operating mode. If an alarm condition exists, the Microtech III controller will send the fault condition to the LED annunciator, which will assist in troubleshooting the unit. LED Annunciator shall be visible without removing access panel. Heat pumps
with the MicroTech III Controller with a LonWorks Communication Module is designed to be linked with a centralized Build-
ing Automation System (BAS) through a LonMark communications network for centralized scheduling and management of multiple heat pumps.
Wall-mounted room sensors are available to control the heating and cooling operation of each MicroTech III Water Source
Heat Pump.
Available room sensors include:
■ Room Sensor with timed override button and LED;
■ Room temperature sensor with timed-override button and set point adjustment (55 to 95 deg F);
■ Room sensor with timed-override button and set point adjustment (-3 to +3 deg F);
■ Room sensor (no options, sensor only).
Warranty
An optional 4-year extended compressor warranty covers the compressor for 5 years from the date at which the unit ships from the factory.
An optional 4-year extended refrigeration circuit warranty covers the entire refrigeration circuit and related components for 5 years.
Field Installed Accessories
Wall Thermostat Options
■ Programmable Electronic Thermostat Two-stage heat/Two-stage cool, 7-day programmable. Subbase shall have system "Mode/Prog" and fan "Auto/On" switches. Thermostat shall have the option of an Optional Remote Sensor.
■ Non-programmable, auto or manual changeover Two-stage heat/Two-stage cool, night setback override. Subbase shall have system "Cool/Off/Heat/Auto" and fan "Auto/On switches. Thermostat shall have the option of an Optional Remote Sensor.
Wall Temperature Sensor Options:
■ Wall Sensor with timed-override button.
■ Wall Sensor with timed-override button and set point adjustment (55 to 95 deg F), fan mode switch (auto/on), opera-
tional mode button (Heat/Cool/Auto) and status LED to display fault condition.
■ Wall Sensor with timed-override button and set point adjustment (-3 to +3 deg F), fan mode switch (auto/on), opera-
tional mode button (Heat/Cool/Auto) and status LED to display fault condition.
Hose Kits:
Two re-rated exible hoses with ASTM ratings of Flame Spread 25, Fuel Contribution 25 and Smoke Density 50 for con-
nection to unit and eld piping. Hose shall be covered with stainless steel braiding to prevent damage.
Valve Options:
■ Combination water balancing and shutoff valve with adjustable memory stop.
■ Optional 2-way, Normally Open (N.O.) or Normally Closed (N.C.) motorized water valves.
Catalog 1112-2 McQuay Large Horizontal Water Source Heat Pumps Page 39 of 42
McQuay Water Source Heat Pumps
Quality Products, Flexible Congurations
Stacking Units 3/4 to 3 Ton
Large Vertical Units 6 to 25 Ton
Large Horizontal Units 6 to 10 Ton
Console Units 3/4 to 11/2 Ton
Rooftop Units 3 to 35 Ton
Water to Water Source Heat Pump Units 3 to 35 Ton
Ennity Vertical &
Horizontal Units 1/2 to 6 Ton
Warranty
All McQuay equipment is sold pursuant to its standard terms and conditions of sale, including Lim­ited Product Warranty. Consult your local McQuay Representative for warranty details. Refer to Form 933-43285Y. To find your local McQuay Representative, go to www.mcquay.com.
This document contains the most current product information as of this printing. For the most up-to-date product information, please go to www.mcquay.com.
Products Manufactured in an ISO Certified Facility.
© 2010 McQuay International • www.mcquay.com • (800) 432-1342 Catalog 1112-2 (4/10)
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