McQuay FCVC User Manual

Download

Engineered for flexibility and performance™

ThinLine™ 3G Vertical Fan Coils Catalog 722

Type FCVC, FCVH, FCVS Vertical Design

Model FCVC

Model FCVS

Contents

Nomenclature and Certification 3

ThinLine 3G Vertical Fan Coils . . . . . . . . . . . . . . 3

ARI Certification . . . . . . . . . . . . . . . . . . . . . . . 3

Agency Listed . . . . . . . . . . . . . . . . . . . . . . . . . 3

Features and Benefits 4

The ThinLine™ 3G Advantage. . . . . . . . . . . . . . . 4

For building owners. . . . . . . . . . . . . . . . . . . . . 4

For specifying engineers. . . . . . . . . . . . . . . . . 4

For contractors . . . . . . . . . . . . . . . . . . . . . . . . 5

Options and Accessories 6

Control Options . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Manual 4-Position Fan Switch. . . . . . . . . . . . . 6

Unit-Mounted, Mechanical Thermostat With 4-Po-

sition Fan Switch. . . . . . . . . . . . . . . . . . . . . . . 6

Digital Thermostats. . . . . . . . . . . . . . . . . . . . . 6

DDC Interface Board. . . . . . . . . . . . . . . . . . . . 7

Customer-Supplied Controls. . . . . . . . . . . . . . 7

Decorative Wall Plate Option 8 Fresh Air Damper Options (Manual and Motorized). 8

Fresh Air Intake Box Option. . . . . . . . . . . . . . . . . 8

Condensate Overflow Switch Option . . . . . . . . . . 8

Tamperproof Cabinet Option . . . . . . . . . . . . . . . . 8

Rear Cabinet Extension Option . . . . . . . . . . . . . . 8

Leveling Legs Option . . . . . . . . . . . . . . . . . . . . . . 9

Raised Sub-Bases and Extended-Width End Pock-

ets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Return Air Grille . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Factory Valve & Piping Packages . . . . . . . . . . . . 9

Available Packages. . . . . . . . . . . . . . . . . . . . 10

Control Valve Options. . . . . . . . . . . . . . . . . . 10

Unit Selection 12

Unit Selection. . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Basic design data . . . . . . . . . . . . . . . . . . . . . . . 12

Unit size . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Coil types . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Performance Data 13

Two-Pipe Systems, Hot Water Heat 13 Four-Pipe Systems - Hot Water Preheat (1 or 2 row) or Reheat (1 row) 14 Four-Pipe Systems - Steam Preheat or Reheat 15 Electric Heat Data 16 Air Volume Capacity Data 17 Motor Electrical Data 18

Physical Data 19

Unit Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Unit Dimensions 20

Decorative Wall Plate Dimensions. . . . . . . . . . . 24

Fresh Air Intake Box Dimensions . . . . . . . . . . . 24

Engineering Guide Specification 25

McQuay ThinLine 3G Fan Coil . . . . . . . . . . . . . 25

Performance. . . . . . . . . . . . . . . . . . . . . . . . . 25

General Construction - All Units . . . . . . . . . . 25

Cabinet. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Coils . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Supply Fan . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Filter Section. . . . . . . . . . . . . . . . . . . . . . . . . 26

Fresh Air Damper. . . . . . . . . . . . . . . . . . . . . 26

Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Valve/Piping Packages. . . . . . . . . . . . . . . . . 27

Other Available Options . . . . . . . . . . . . . . . . 28

Nomenclature and Certification

FC V S - 1 02 A

Unit Type FC = Fan Coil FH = Cabinet Unit Heater

Unit Configuration V= Vertical W = Wall Hung

Cabinet Type C = Cabinet (Flat Top) S = Slope Top H = Hideaway

Voltage A = 115/60/1 E = 208-230/60/1 J = 265-277/60/1

Unit Size 02 = 200 CFM 03 = 300 CFM 04 = 400 CFM 06 = 600 CFM 08 = 800 CFM 10 = 1000 CFM 12 = 1200 CFM

Design Series

ThinLine 3G Vertical Fan Coils

Figure 1: Nomenclature

Nomenclature and Certification

ARI Certification Agency Listed

Standard size units certified in accordance with the Room Fan-Coil Unit certification program, which is based on ARI Standard

All standard units

All Canadian units

440.

McQuay Catalog 722 3

Features and Benefits

Multiple Control Options

• From 3-speed switch to DDC interface board

• Remote or unit-mounted

• 3-speed or staged fan

Multiple Configurations

• Flat top

• Slope top

• Hideaway

• Wall mounted

Multiple Coil Options

• 2, 3 or 4-row main coil

• 1 or 2-row preheat or 1-row

reheat coil

• Hot water or steam

• Same or opposite end

connections

Multiple Grille Options

• Stamped and multi-

directional outlet grilles

• Return grille option

Diverse, Flexible Valve & Piping Packages

• Factory-mounted, wired and

tested

• Or, factory-assembled and

shipped loose

• Normally closed or open, on/

off or modulating valves

Easily Removed Drain Pan & Motor Assembly

• For easy maintenance and service

• Sloped, polymer drain pan for good IAQ

Optional Secondary Drain Pan

• Noncorrosive

• Easily removed

Features and Benefits

The ThinLine™ 3G Advantage

New ThinLine 3G vertical fan coils combine the features most desired in a fan coil by building owners, specifying engineers and contractors alike. The result is a new, third generation fan coil design that meets the needs of all three.

For building owners

ThinLine 3G fan coils offer quiet operation. They fully comply with ASHRAE 62.1-2004 standards for high indoor air quality. And they offer a range of control options that can enhance occupant comfort and reduce operating costs. These units are also easy to maintain, with easy access to filters, fan motors and control systems.

Figure 2: Unit Features

For specifying engineers

ThinLine 3G fan coils provide great versatility. A variety of vertical models are available with multiple arrangements and configurations.

• Coil options include two, three, and four-row main coils to

provide precise heating and cooling performance for any requirement. Separate, single-row reheat coils (hot water or steam) are available. Separate, one-row or two-row preheat coils are also available with same or opposite-end coil connections.

• Multiple control options range from a simple fan speed

switch to a DDC interface board that can tie into most building automation systems. Non-communicating or communicating control options for LonTalk and BacNet will be available soon. Contact your McQuay representative for details.

4 McQuay Catalog 722

Features and Benefits

• Grille options include stamped inlet and outlet grilles and

multidirectional grilles. Aluminum fresh air boxes are also available.

• Appearance options include cabinet units with a durable,

powder paint finish and decorative wall plate panels for hideaway units in cupola white or antique ivory. Custom colors are available as a special. Leveling feet are available, as are rear cabinet extensions in 4 and 8-inch depths. Tamper- proof units are another option, with 16-gauge steel panels, a return grille and key-operated, locking access doors.

For contractors

For contractors, ThinLine 3G fan coils feature Quick Ship options for fast delivery and a number of features that make installation fast and simple.

• Factory-mounted, wired and tested valve and piping

packages for quick hookup to the building piping to reduce installation time. Packages can also be shipped loose with the unit. Valve and piping packages are designed for entering-water-temperature sampling. This eliminates the

need for inefficient bleed lines to sense automatic changeover on two-pipe units.

• Factory-mounted and tested controls minimize field setup.

Depending on the option requested, controls can be wired with a 24 VAC transformer to provide a single-source power connection to the unit. Several options are available for unit or wall mounted thermostats and sensors. All wall-mounted thermostat and zone sensors require only low-voltage control wiring from the device to the unit control box.

• Easy, end-panel removal for hookup of electrical and piping

connections minimizes field-labor time and cost.

• End compartment panels can be removed for installation and

service without removing the front panel covering the fan blower section. This means that airflow through the filter and coil is not jeopardized for taking temperature and performance readings.

• Both the main drain pan and optional secondary drain pan

are easily accessed for cleaning.

• The fan deck and motor assembly is easily removed when

required for service.

McQuay Catalog 722 5

Options and Accessories

Control Options

Manual 4-Position Fan Switch

This four-position fan switch (Off, High, Med, Low) option is available remotemounted It operates on low-voltage or linevoltage power and can be provided with a factory-mounted, low-voltage DDC interface board, which contains 3-24 volt relays with line voltage contactors and terminal connections. The transformer is factory-installed and wired.

Sequence of operation

• Off: Fan is turned off. The two-position, motorized fresh-air

damper, when supplied, is closed.

• High, Medium, Low: Fan runs continuously at the selected

speed. The two-position, motorized fresh-air damper, when supplied, is opened.

Unit-Mounted, Mechanical Thermostat With 4-Position Fan Switch

This unit-mounted option combines the four-position fan switch described above with a mechanical thermostat. For two-pipe systems with a factory installed valve package, it can be provided with a manual switch (shown in picture to the right) to change from heating to cooling. Or changeover can be automatic.

Sequence of operation

• Fan Switch

• Off: Fan is turned off. The two-position, motorized

fresh-air damper, when supplied, is closed.

• High, Medium, Low: Fan runs continuously at the

selected speed. The two-position, motorized fresh-air damper, when supplied, is opened.

• Thermostat

• Cycles the valve(s) open or closed on demand based on occupant-desired level.

• Changeover Switch: With a manual switch, the user selects

whether heating or cooling is desired. With automatic changeover, a pipe sensor works with the thermostat to operate the heating or cooling valve.

• Heating: Opens the valve when the temperature is below

the setpoint.

• Cool: Opens the valve when the temperature is above the

setpoint.

Digital Thermostats

McQuay offers a broad range of unit-mounted and remote, wall-mounted digital thermostats with the capability to control on-off, 3-wire and proportional modulating valves, and normally closed or normally open actuator valves. See

Table 1. For more

information, refer to the McQuay publication ED 18513.

MT155 Thermostat

The MT155 series thermostat provides on-off control for lowvoltage or line-voltage valves and fan motors. It is remote-wall mounted. Options include manual or automatic changeover and three-speed fan control for continuous or cycling fan operation.

Figure 3: MT155 Thermostats

Three standard control options are available:

• On-off fan cycle operation only: The thermostat cycles the

fan from the manually selected fan speed (high, medium or low) to off.

• Continuous fan and on-off valve cycle operation: The

thermostat cycles the valves on and off. The fan runs continuously at the manually selected fan speed.

• On-off fan and on-off valve cycle operation: The thermostat

cycles the fan from the manually selected fan speed to off and it cycles the valves on and off.

When the system switch is in the off position, the fan coil system including the fan is shut off.

MT158 and MT168 Thermostat-Controllers wi th Digital Display

Series MT158 and MT168 microprocessor-based thermostatcontrollers combine a proportional integral control algorithm with adaptive logic. They can be unit-mounted or remote-wall mounted.

6 McQuay Catalog 722

Options and Accessories

Figure 4: MT158 and MT168 Thermostats

Heating and cooling outputs for the MT158 are individually configurable for three-wire floating control valves or on/off valves in the normally open or normally closed modes.

Heating and cooling outputs for the MT168 provide 0-10 Vdc or 4-20 mA The integrated, three-speed fan control switch is line voltage to allow direct connection to the fan motors. Manual or automatic changeover is provided with remote setback capability from a time clock or facility management system. Features include a Fahrenheit or Celsius digital display and a built-in purge cycle which assists the controller to determine if the system is supplying hot water or cooling.

Two standard control options are available:

• Continuous fan and modulating (or on-off) valve operation.

The fan runs continuously at the manually selected fan speed (high, medium or low). The controller modulates the valves or, on the MT158, dip-switches can be set to cycle the valves on and off.

• On-off fan cycle operation and modulating (or on-off) valve

operation. The controller cycles the fan from the manually

selected fan speed to off. The controller modulates the valves or, on the MT158, dip-switches can be set to cycle the valves on and off.

Table 1: Thermostats

Thermostat Type Mounting

Manual three speed fan switch Remote Single-pull, double-throw heating/cooling thermostat

with manual heat-off-cool system switch and manual three-speed fan switch

Single-pull, double-throw thermostat only Unit Two-pole dead-band auto-changeover thermostat with

manual on-off system switch and manual three-speed fan switch

Two-pole, dead-band, auto-changeover, heating/ cooling thermostat

Digital thermostat 24 vac/120-277 vac with 3-speed fan control (continuous or fan cycle)

Digital thermostat 24 vac/120-277 vac with staged fan (continuous or fan cycle)

Digital thermostat with dead-band auto-changeover for heating/cooling. On/off or three-wire floating valve control.

Digital thermostat with dead-band auto-changeover for heating/cooling, On/off or three-wire floating valve control, and manual three speed fan switch Digital thermostat with auto-changeover, dead-band, and modulating valve Digital thermostat with auto change over, dead band, modulating valve, and three speed fan switch

Unit

Remote

Unit or

Remote

Unit or

Remote

Unit or

Remote

Unit or

Remote

DDC Interface Board

The low-voltage, DDC interface board is used with any remote (wall mounted) McQuay thermostat or control. It can also be used with a BAS (Building Automation System) control where low voltage is needed to operate the fan coil.

The DDC interface board includes:

• Three 24-volt relays with line-voltage contactors to operate

the fan motor speeds.

• Terminal connections for interfacing to:

• An optional wall-mounted thermostat.

• Low-voltage actuators for heating and cooling valves.

• A return air sensor.

• A pipe temperature sensor for changeover from heating to cooling on two-pipe systems.

• An optional condensate overflow switch, when selected.

• A factory-wired and installed transformer.

Customer-Supplied Controls

Your McQuay representative can work with engineers and/or contractors to factory install and wire other manufacturers’ DDC controllers in one of the end pockets of the fan coil. Contact your local McQuay representative for assistance with your specific project.

McQuay Catalog 722 7

Options and Accessories

Decorative Wall Plate Option

Decorative wall plates have rounded corners and an antique ivory. finish for an attractive appearance. Other colors are available upon request.

Fresh Air Damper Options (Manual and Motorized)

A fresh air intake that will provide up to 25% fresh air with insect air screen and damper blade, can be ordered either factory installed or as a field installed kit. The kit consists of an intake with damper blade and insect screen. The damper may be manually controlled through the return air opening or with an optional field-installed damper motor. If freezing air temperatures are expected, the damper must be closed or outside air must be tempered before entering the unit. A provision to install a low-temperature sensor is recommended.

Condensate Overflow Switch Option

With proper mounting, the condensate overflow switch will detect water collecting in the primary drain pan before overflow can occur. This is an on-off switch that goes back to the normal position when water is no longer present.

Tamperproof Cabinet Option

This option can be factory- or field-installed on cabinet units to prevent access to unit controls and easy removal of cabinet panels. It includes a key lock access door to unit controls and torx head screws for cabinet panels.

Fresh Air Intake Box Option

Fabricated of aluminum with weep holes and a double set of louvers in series to prevent moisture draw-through. This is used with a fresh air damper and is mounted in an exterior wall.

Rear Cabinet Extension Option

This kit is available for applications where additional depth is necessary. Four-inch extension kits are available. Other extension depths are available as a special. Contact your McQuay Representative for details. This kit is not designed to be an air duct or outside air plenum.

Some common applications for the rear cabinet extension include:

• Allow additional depth for appearance of unit.

8 McQuay Catalog 722

Options and Accessories

• Allow additional clearance for cross-over piping and

connections.

• Extend the discharge grille past drapery or wall hangings.

• Cover floor covering terminations in remodeling projects.

• Allow for piping entry through the side panels of the unit.

Return Air Grille

A stamped-steel, return air grille is available as an option, factory or field-installed.

Factory Valve & Piping Packages

Factory valve and piping packages are available for both twopipe and four-pipe systems with either right or left hand connections. Four-pipe systems can be configured with the heating and cooling connections on the same or opposite sides of the unit. Packages can be either factory-installed or factoryassembled and shipped loose with the unit. Units are also available without a valve and piping package in either a righthand or left-hand configuration. All packages are fully leak tested.

Factory-installed packages are sweated to the coil and wired to the unit control box or DDC. Chilled and hot water pipes are the only field connections required. Piping is 1/2” nominal copper (5/8” OD).

Figure 5: Four-pipe deluxe valve and piping package

Leveling Legs Option

Field or factory-installed kits are available with 0” to 1" adjustment for positive leveling of floor-mounted units.

Raised Sub-Bases and ExtendedWidth End Pockets

Extended-height subbases and extended end pockets are available as a special. Contact your McQuay Representative for more information.

Note: S tandard end pockets on McQuay units can accomodate

most requirements. Therefore, extended pockets are seldom needed.

Pre-determined field connection points are located for easy access. See Figure 6, page 11 for connection locations. The installing contractor can pre-pipe the building water connections before the units arrive on the jobsite. A label clearly identifies chilled and hot water connection points on every unit.

All chilled water piping and components are located to allow condensate to drain into the secondary drain pan. Insulation of the factory piping package is not required.

McQuay Catalog 722 9

Options and Accessories

Available Packages

Numerous piping packages are available to match your configuration. Additional components can be added to meet your exact requirements, including P/T ports, unions, and flexible, stainless steel hoses.

Shut-off Only Packages

Shut-off only piping packages provide interconnecting copper piping and shut-off ball valves for easily connecting supply and return lines to the unit. Four-pipe packages include a venting valve for the preheat or reheat coil. Primary coils on all units have an integral venting valve.

Basic Packages

Basic valve and piping packages add control valves to the Shut-off Only package. All McQuay control valves are factory-mounted in the supply water pipe. See Control Valve

Options‚ page 10 for more information on the variety of

control valves available.

Enhanced Packages

Enhanced valve and piping packages replace the ball valve on the Basic package’s supply water pipe with a manual circuit setter, also known as a manual flow control valve. The circuit setter acts as both a flow-setting device and a shut-off valve. It allows water flow through the fan coil to be set quickly and accurately.

P/T ports are included, which are used to measure the temperature or pressure drop across the valve. This pressure drop can be compared to factory-supplied tables that relate the pressure drop to a specific flow rate. The valve also has a memory stop so that the correct setting can be found quickly.

Premium Packages

Premium valve and piping packages replace the Enhanced package’s manual circuit setter with an automatic circuit setter. The circuit setter includes a cartridge within the valve body that is sized to allow a specific flow rate through the coil. This valve sets flow through the coil without any action required by a system piping balancer.

Deluxe Packages

Deluxe valve and piping packages add a strainer to the Premium package. The strainer is attached to the supply water pipe at the coil connections. The strainer body is cast brass construction with a stainless steel mesh that is easily removed for cleaning. The strainer is available with or without an optional draining (blow-off) valve.

Control V a lve Opt ions

Except for Shut-off Only packages, all valve and piping packages include control valves for controlling water flow. All McQuay control valves are factory-assembled and mounted in the supply water pipe downstream of the coil. Several options are available as follows.

Two-Way/Two-Position Valves

These valves will be either fully open or fully closed in response to a line voltage (115 or 265-277 VAC) or a 24 VAC signal from the McQuay thermostat or controller. Some means of relieving pump head pressure should be accounted for when two-way valves are selected. Normally open or normally closed valves are available. Both are spring-return.

Three-Way, Two-Position Valves

These valves either allow full water flow through the coil or divert the flow through a bypass line. The valves respond to a line voltage (115 or 265-277 VAC) or to a 24 VAC signal from the McQuay thermostat or controller. All standard three-way valves come with a fixed-balance orifice in the bypass line to compensate for flow balancing in the bypass position, eliminating the need for an additional balancing valve. Normally open or normally closed valves are available.

Two-Way Modulating Valves

These valves modulate the water flow through the coil in response to a signal from the McQuay thermostat or controller. All standard McQuay modulating valves are three-wire floating point equal percentage valves. Zero to 10 VDC proportional valves are also available as a special option upon request. The modulating valves are factory mounted in the supply water pipe upstream of the coil.

Three-Way Modulating Valves

These valves modulate the water flow through the coil in response to a signal from the McQuay thermostat or controller. Three-way valves allow water that is directed through the coil to mix with water that is directed through the bypass line. This mixture exits through the leaving water pipe. All modulating valves are three-wire, floating-point equal percentage valves. The modulating valves are factory mounted in the supply water pipe upstream of the coil.

Selecting the Correct Size Modulating Valve

McQuay SelectTools™ software automatically selects the best modulating valve size for the unit and coil being considered. By combining the ARI performance data, the coil flow rate and the DP across the water coil, the water coil Cv is calculated and the best matching modulating port size is selected.

10 McQuay Catalog 722

Figure 6: Hook Up Locations: Factory-installed Valve & Piping Packages

Front View

4-Pipe, Right Hand with Same-Side Secondary Coil

4.2”

[107 mm]

6.9” [175 mm]

End View

Primary Coil Piping (preheat piping hidden)

4.9” [125 mm]

6.4”

[163 mm]

1.3” [33 mm]

2” [51 mm]

Supply

Return

End View

Preheat Coil Piping (primary piping hidden)

4.8” [122 mm]

1.3” [33 mm]

3.5”

[90 mm]

Supply

Return

End View:

Reheat Coil Piping (primary piping hidden)

3.7” [94 mm]

1.3” [33 mm]

4.7” [120 mm]

3.4” [86 mm]

Supply

Return

4.2” [107 mm]

1.7” [43 mm]

2.8”

[71 mm]

3.4” [86 mm]

1.4” [36 mm]

4.9” [124 mm]

5.5”

[140 mm]

End View:

Preheat Coil Piping

Return

Supply

End View:

Primary Coil Piping

Front View: 4-Pipe, Right Hand with Opposite-End Preheat

y pg

4.9” [125 mm]

2”

[51 mm]

6.7”

[170 mm]

1.2” [32 mm]

Return

Supply

Front View

2-Pipe, Right Hand

4.2”

[107 mm]

End View

2-Pipe, Right Hand

4.9” [125 mm]

6.4”

[163 mm]

1.3” [33 mm]

2” [51 mm]

Supply

Return

4-Pipe Arrangement with Same-End Connections

4-Pipe Arrangement with Opposite-End Connections

2-Pipe Arrangement

Note: All valve packages, regardless of

components included, have the same hookup locations. RIght-hand connections are shown here. Left-hand connection distances are the same. Distances to connections from chassis are from unit mounting holes. Dimensions may vary slightly from given values.

Options and Accessories

McQuay Catalog 722 11

Unit Selection

The achievement of an efficient fan coil system is dependent upon accurate system design and proper equipment selection. Variations, limitations and control of fan coil systems, design conditions and design load calculations are not described in detail in this catalog. More detailed information may be found in the ASHRAE Guide. This catalog contains ARI certified ratings and application ratings for ThinLine 3G fan coil units from which the design engineer can make initial unit selections to meet the requirements of the system.

The mechanical system designer must select the unit types best suited to the overall system before the actual unit sizes can be determined. The factors that generally influence this decision are intended building usage, building layout, architectural and aesthetic values, economics, geographical location, and type of maintenance service available. The general results may be a mixture of various unit types within a given system. McQuay International manufactures a fan coil unit to meet your every need including ThinLine, HiLine and Large Capacity models. For McQuay product information, please go to www.mcquay.com.

Unit size

The capacity ratings presented in this catalog are provided for initial unit selection only. Water cooling and heating capacities, unit air flow, static pressure and glycol solutions ar all incorporated into the program to provide the best possible selection. Consult your McQuay representative for a selection tailored to your application.

Unit sizes for the ideal system should be selected by calculating the peak load requirements due to unusually high occupancy or severe climatic conditions and with fan operating at high speed. Ordinary day to day cooling and heating requirements are then achieved at low and medium speeds.

The initial unit selection should be checked for air volume in the design system and the cooling capacities checked at the actual operating conditions. While units selected on the basis of sensible load will generally meet the total cooling load, total load should be checked in all cases.

The unit size is generally selected on the basis of matching the sensible cooling capacity of the unit with the calculated requirements when operating at high speed.

Basic design data

Prior to selecting the individual unit sizes, the design engineer must fix or determine the following factors:

• Inside and outside wet and dry bulb design temperatures.

• Total and sensible heat gains and losses of the area to be

served.

• Ventilation air.

• Properties of the heating and cooling medium.

• Available electric power service.

• Any special design requirements of the building or system.

Coil types

Standard coils are designed to meet both the cooling and heating requirements in a typical system. Two additional levels of enhanced primary coils are available to meet the total and sensible requirements of any application.

Heating requirements for two-pipe systems are generally met by employing the same water flow rate as cooling and adjusting the entering hot water temperature to obtain a matching unit heat output at low fan speed.

Four-pipe systems are generally designed by specifying the flow rate through the separate heating coil to meet the required heat load with the fan operating at the desired fan speed. McQuay offers two coil options for preheat and one option for reheat.

12 McQuay Catalog 722

Performance Data

Two-Pipe Systems, Hot Water Heat

Performance Data

All performance measured on high speed tap, 115 V, zero ESP, with a throwaway filter. Cooling performance is based on 80/ 67°F (27/19 C) entering air temperature, 45°F (7°C) entering chilled water temperature with a 10°F (5.5°C) ΔT.

Table 2: Cooling and hea tin g pe rformance - two-pipe systems

Unit Size

Main

Coil

Rows

2 Row 218 4.2 (1.2) 3.8 (1.1) 0.9 (0.06) 0.3 (0.9) 14.1 (4.1) 0.128 (0.067) 0.9 (0.06) 0.3 (0.9) 3 Row 209 5.7 (1.7) 4.6 (1.3) 1.2 (0.08) 0.5 (1.5) 17.2 (5.0) 0.156 (0.082) 1.2 (0.08) 0.5 (1.5) 4 Row 200 5.9 (1.7) 4.7 (1.4) 1.2 (0.08) 0.6 (1.8) 19.2 (5.6) 0.175 (0.092) 1.2 (0.08) 0.6 (1.8) 2 Row 299 5.0 (1.5) 4.8 (1.4) 1.1 (0.07) 0.4 (1.2) 19.8 (5.8) 0.180 (0.095) 1.1 (0.07) 0.4 (1.2) 3 Row 291 6.9 (2.0) 6.0 (1.8) 1.5 (0.09) 0.5 (1.5) 24.4 (7.2) 0.222 (0.118) 1.5 (0.09) 0.5 (1.5) 4 Row 265 9.4 (2.8) 6.9 (2.0) 1.9 (0.12) 1.5 (4.5) 27.2 (8.0) 0.247 (0.131) 1.9 (0.12) 1.5 (4.5) 2 Row 398 8.0 (2.3) 7.2 (2.1) 1.7 (0.11) 1.0 (3.0) 28.3 (8.3) 0.257 (0.136) 1.7 (0.11) 1.0 (3.0) 3 Row 385 10.7 (3.1) 8.7 (2.5) 2.2 (0.14) 1.3 (3.9) 34.0 (10.0) 0.309 (0.164) 2.2 (0.14) 1.3 (3.9) 4 Row 374 14.3 (4.2) 10.2 (3.0) 2.9 (0.18) 3.4 (10.2) 38.9 (11.4) 0.354 (0.187) 2.9 (0.18) 3.4 (10.2) 2 Row 602 14.0 (4.1) 11.5 (3.4) 2.9 (0.18) 4.4 (13.1) 41.0 (12.0) 0.373 (0.196) 2.9 (0.18) 4.4 (13.1) 3 Row 565 17.7 (5.2) 13.3 (3.9) 3.7 (0.23) 5.2 (15.5) 47.1 (13.8) 0.428 (0.226) 3.7 (0.23) 5.2 (15.5) 4 Row 554 22.4 (6.6) 15.2 (4.5) 4.6 (0.29) 9.0 (26.9) 52.6 (15.4) 0.478 (0.252) 4.6 (0.29) 9.0 (26.9) 2 Row 675 17.0 (5.0) 13.4 (3.9) 3.6 (0.23) 7.7 (23.0) 50.3 (14.7) 0.457 (0.241) 3.6 (0.23) 7.7 (23.0) 3 Row 656 21.7 (6.4) 15.9 (4.7) 4.5 (0.28) 8.0 (23.9) 58.7 (17.2) 0.534 (0.281) 4.5 (0.28) 8.0 (23.9) 4 Row 634 26.4 (7.7) 17.8 (5.2) 5.5 (0.35) 14.8 (44.2) 64.3 (18.8) 0.585 (0.308) 5.5 (0.35) 14.8 (44.2) 2 Row 831 20.9 (6.1) 16.7 (4.9) 4.4 (0.28) 6.8 (20.3) 62.4 (18.3) 0.567 (0.299) 4.4 (0.28) 6.8 (20.3) 3 Row 808 27.4 (8.0) 19.9 (5.8) 5.7 (0.36) 8.7 (26.0) 73.2 (21.5) 0.665 (0.352) 5.7 (0.36) 8.7 (26.0) 4 Row 795 32.4 (9.5) 21.9 (6.4) 6.7 (0.42) 11.1 (33.2) 80.8 (23.7) 0.735 (0.388) 6.7 (0.42) 11.1 (33.2) 2 Row 1118 27.1 (7.9) 21.2 (6.2) 5.6 (0.35) 12.5 (37.4) 78.3 (22.9) 0.712 (0.375) 5.6 (0.35) 12.5 (37.4) 3 Row 1059 34.5 (10.1) 24.9 (7.3) 7.1 (0.45) 15.5 (46.3) 95.4 (28.0) 0.867 (0.458) 7.1 (0.45) 15.5 (46.3) 4 Row 1022 40.2 (11.8) 27.0 (7.9) 8.3 (0.52) 18.3 (54.7) 103.8 (30.4) 0.944 (0.497) 8.3 (0.52) 18.3 (54.7)

SCFM

Total

TMBh

(kW)

Cooling Performance Heating Performance

Sensible

TMBh

(kW)

Gpm (L/s)

Heating performance is based on 70°F (21°C) entering air temperature, 180°F (82°C) entering hot water temperature with a 30°F (17°C) T.

WPD

FtofH

(kPa)

TMBh (TkW) Q/ITD

Gpm (L/

WPD

FtofH2O

(kPa)

McQuay Catalog 722 13

Performance Data

Four-Pipe Systems - Hot Water Preheat (1 or 2 row) or Reheat (1 row)

All performance measured on high speed tap, 115 V, zero ESP, with a throwaway filter. Cooling performance is based on 80/ 67°F (27/19 C) entering air temperature, 45°F (7°C) entering

Heating performance is based on 70°F (21°C) entering air temperature, 180°F (82°C) entering hot water temperature with

a 30°F (17°C) T.

chilled water temperature with a 10°F (5.5°C) ΔT.

Table 3: Cooling and heating performance - four-pipe systems, hot water heat

Main

Unit Size

Rows

2 Row

3 Row

4 Row

2Row

3 Row

4 Row

2 Row

3 Row

4 Row

2 Row

3 Row

4 Row

2 Row

3 Row

4 Row

2Row

3 Row

4 Row

2 Row

3 Row

4 Row

Note: *2-Row hot water coils are only available in the preheat position

Coil

Heating

Coil

Rows

1 Row 201 4.0 (1.2) 3.6 (1.1) 0.8 (0.05) 0.3 (0.9) 8.4 (2.5) 0.076 (0.041) 0.9 (0.1) 1.4 (4)

2 Row* 192 3.9 (1.1) 3.5 (1.0) 0.8 (0.05) 0.3 (0.9) 11.6 (3.4) 0.105 (0.056) 0.8 (0.1) 0.6 (1.8)

1 Row 192 5.3 (1.6) 4.3 (1.3) 1.1 (0.07) 0.4 (1.2) 8.2 (2.4) 0.075 (0.039) 0.9 (0.1) 1.3 (4)

2 Row* 184 5.1 (1.5) 4.2 (1.2) 1.1 (0.07) 0.4 (1.2) 11.3 (3.3) 0.102 (0.054) 0.8 (0.1) 0.6 (1.8)

1 Row 184 5.7 (1.7) 4.5 (1.3) 1.2 (0.08) 0.6 (1.8) 8.1 (2.4) 0.073 (0.039) 0.9 (0.1) 1.3 (4)

2 Row* 176 6.4 (1.9) 4.7 (1.4) 1.3 (0.08) 0.7 (2.1) 11.0 (3.2) 0.100 (0.052) 0.8 (0.1) 0.5 (1.5)

1 Row 275 4.7 (1.4) 4.5 (1.3) 1.0 (0.06) 0.4 (1.2) 12.4 (3.6) 0.113 (0.059) 1.3 (0.1) 3.5 (10)

2 Row* 263 4.6 (1.3) 4.4 (1.3) 1.0 (0.06) 0.4 (1.2) 17.3 (5.1) 0.157 (0.083) 1.2 (0.1) 1.5 (4.5)

1 Row 268 6.5 (1.9) 5.6 (1.6) 1.4 (0.09) 0.4 (1.2) 12.3 (3.6) 0.112 (0.059) 1.3 (0.1) 3.4 (10)

2 Row* 256 6.3 (1.8) 5.4 (1.6) 1.3 (0.08) 0.4 (1.2) 17.0 (5.0) 0.154 (0.082) 1.2 (0.1) 1.4 (4.2)

1 Row 244 8.8 (2.6) 6.4 (1.9) 1.8 (0.11) 1.3 (3.9) 11.7 (3.4) 0.107 (0.056) 1.2 (0.1) 3.2 (10)

2 Row* 233 8.4 (2.5) 6.1 (1.8) 1.8 (0.11) 1.2 (3.6) 16.0 (4.7) 0.145 (0.077) 1.1 (0.1) 1.3 (3.9)

1 Row 366 7.5 (2.2) 6.8 (2.0) 1.6 (0.10) 0.9 (2.7) 16.9 (5.0) 0.153 (0.082) 1.8 (0.1) 7.1 (21)

2 Row* 350 7.3 (2.1) 6.5 (1.9) 1.5 (0.09) 0.8 (2.4) 23.7 (6.9) 0.215 (0.113) 1.7 (0.1) 2.9 (8.7)

1 Row 354 10.1 (3.0) 8.1 (2.4) 2.1 (0.13) 1.2 (3.6) 16.6 (4.9) 0.151 (0.080) 1.8 (0.1) 6.9 (21)

2 Row* 339 9.7 (2.8) 7.8 (2.3) 2.0 (0.13) 1.1 (3.3) 23.2 (6.8) 0.211 (0.111) 1.7 (0.1) 2.8 (8.4)

1 Row 344 13.4 (3.9) 9.4 (2.8) 2.8 (0.18) 3.0 (9.0) 16.4 (4.8) 0.149 (0.079) 1.7 (0.1) 6.7 (20)

2 Row* 329 12.9 (3.8) 9.1 (2.7) 2.7 (0.17) 2.8 (8.4) 22.7 (6.7) 0.207 (0.110) 1.6 (0.1) 2.7 (8.1)

1 Row 554 13.3 (3.9) 10.8 (3.2) 2.8 (0.18) 4.0 (12.0) 23.2 (6.8) 0.211 (0.111) 2.8 (0.2) 19.6 (59)

2 Row* 530 12.9 (3.8) 10.4 (3.0) 2.7 (0.17) 3.8 (11.4) 32.9 (9.6) 0.299 (0.157) 2.6 (0.2) 7.7 (23.0)

1 Row 520 16.7 (4.9) 12.4 (3.6) 3.4 (0.21) 4.6 (13.7) 22.5 (6.6) 0.205 (0.108) 2.7 (0.2) 18.5 (55)

2 Row* 497 16.1 (4.7) 12.0 (3.5) 3.3 (0.21) 4.3 (12.9) 31.6 (9.3) 0.287 (0.152) 2.5 (0.2) 7.2 (21.5)

1 Row 510 21.0 (6.2) 14.2 (4.2) 4.3 (0.27) 8.0 (23.9) 22.3 (6.5) 0.203 (0.106) 2.6 (0.2) 18.2 (54)

2 Row* 488 20.2 (5.9) 13.6 (4.0) 4.2 (0.26) 7.5 (22.4) 31.2 (9.1) 0.284 (0.149) 2.5 (0.2) 7.0 (20.9)

1 Row 621 16.1 (4.7) 12.6 (3.7) 3.4 (0.21) 7.0 (20.9) 28.3 (8.3) 0.257 (0.136) 3.2 (0.2) 28.0 (84)

2 Row* 594 15.6 (4.6) 12.2 (3.6) 3.3 (0.21) 6.6 (19.7) 40.0 (11.7) 0.364 (0.191) 3.0 (0.2) 10.7 (32.0)

1 Row 604 20.4 (6.0) 14.9 (4.4) 4.2 (0.26) 7.2 (21.5) 27.9 (8.2) 0.254 (0.134) 3.1 (0.2) 27.3 (82)

2 Row* 577 19.7 (5.8) 14.3 (4.2) 4.1 (0.26) 6.8 (20.3) 39.2 (11.5) 0.357 (0.188) 2.9 (0.2) 10.4 (31.1)

1 Row 583 24.8 (7.3) 16.6 (4.9) 5.1 (0.32) 13.2 (39.4) 27.4 (8.0) 0.249 (0.131) 3.1 (0.2) 26.4 (79)

2 Row* 558 23.9 (7.0) 16.0 (4.7) 5.0 (0.32) 12.4 (37.1) 38.4 (11.3) 0.349 (0.185) 2.9 (0.2) 9.9 (29.6)

1 Row 765 19.8 (5.8) 15.7 (4.6) 4.1 (0.26) 6.2 (18.5) 35.9 (10.5) 0.326 (0.172) 4.0 (0.3) 51.1 (153)

2 Row* 731 19.2 (5.6) 15.2 (4.5) 4.0 (0.25) 5.8 (17.3) 50.6 (14.8) 0.460 (0.242) 3.8 (0.2) 18.8 (56.2)

1 Row 743 25.7 (7.5) 18.6 (5.5) 5.3 (0.33) 7.8 (23.3) 35.3 (10.3) 0.321 (0.169) 4.0 (0.3) 49.7 (149)

2 Row* 711 24.9 (7.3) 18.0 (5.3) 5.1 (0.32) 7.3 (21.8) 49.6 (14.5) 0.451 (0.237) 3.7 (0.2) 18.2 (54.4)

1 Row 731 30.2 (8.9) 20.4 (6.0) 6.2 (0.39) 9.8 (29.3) 35.1 (10.3) 0.319 (0.169) 3.9 (0.2) 49.0 (146)

2 Row* 700 29.1 (8.5) 19.6 (5.7) 6.0 (0.38) 9.2 (27.5) 49.1 (14.4) 0.447 (0.236) 3.7 (0.2) 17.8 (53.2)

1 Row 1029 25.9 (7.6) 20.1 (5.9) 5.4 (0.34) 11.5 (34.4) 43.8 (12.8) 0.398 (0.209) 5.2 (0.3) 93.6 (280)

2 Row* 984 25.2 (7.4) 19.4 (5.7) 5.2 (0.33) 11.0 (32.9) 62.7 (18.4) 0.570 (0.301) 5.0 (0.3) 34.6 (103.4)

1 Row 974 32.7 (9.6) 23.3 (6.8) 6.7 (0.42) 14.0 (41.8) 45.1 (13.2) 0.410 (0.216) 5.1 (0.3) 89.0 (266)

2 Row* 932 31.7 (9.3) 22.6 (6.6) 6.6 (0.42) 13.3 (39.7) 64.1 (18.8) 0.583 (0.308) 4.8 (0.3) 32.4 (96.8)

1 Row 940 37.8 (11.1) 25.2 (7.4) 7.8 (0.49) 16.2 (48.4) 44.3 (13.0) 0.403 (0.213) 5.0 (0.3) 86.2 (258)

2 Row* 899 36.5 (10.7) 24.3 (7.1) 7.6 (0.48) 15.2 (45.4) 62.6 (18.3) 0.569 (0.299) 4.7 (0.3) 31.0 (92.6)

SCFM

Total

TMBh

(kW)

Cooling Performance Heating Performance

Sensible

TMBh

(kW)

Gpm

(L/s)

WPD

Ft H

(kPa)

TMBh (TkW)

Q/ITD

Gpm

(L/s)

WPD

Ft H2O

(kPa)

14 McQuay Catalog 722

Four-Pipe Systems - Steam Preheat or Reheat

Performance Data

All performance measured on high speed tap, 115 V, zero ESP, with a throwaway filter. Medium and low-speed capacities are approximately 88% and 68% respectively of the high-speed capacity.

Q/ITD =

Saturated steam temp – Entering air temp

MBh (kW)

pressure or entering air temperature, compute the new ITD and multiply it by the Q/ITD shown. See Table 5 to determine the saturated steam temperatures at various entering steam pressures. For more accurate values, use McQuayTools™ selection program available from your McQuay representative.

To determine heating capacities at different entering steam

Table 4: Steam Coil Performance with Free-Discharge Motor

Unit Size

02 Pre/ReHeat 1 Row 10.2 (3.0) 11.3 (3.3) 0.069 (0.036) 03 Pre/ReHeat 1 Row 14.4 (4.2) 16.0 (4.7) 0.098 (0.052) 04 Pre/ReHeat 1 Row 19.1 (5.6) 21.1 (6.2) 0.130 (0.069) 06 Pre/ReHeat 1 Row 28.7 (8.4) 31.7 (9.3) 0.195 (0.103) 08 Pre/ReHeat 1 Row 32.7 (9.6) 36.2 (10.6) 0.222 (0.117) 10 Pre/ReHeat 1 Row 40.9 (12.0) 45.4 (13.3) 0.279 (0.147) 12 Pre/ReHeat 1 Row 52.7 (15.4) 58.1 (17.0) 0.358 (0.189)

Note: *2-Row coils only available in preheat position.

Steam Coil Rows

Table 5: Steam Properties

Steam Pressure PSIG (kPa) 2 (14) 5 (34)

Sat. Steam Temp. F (C) 219 (104) 227 (108)

Latent Heat Btu/Lb (kJ/kg) 965 (2240) 960 (2230)

2 psig (14 kPa)

Total MBH (KW)

5 psig (103 kPa) Total MBH (KW)

Q/ITD MBH/dF

(KW/dC)

McQuay Catalog 722 15

Performance Data

Electric Heat Data

Table 6: Electric Heat kW*

Unit Size

Note: *Electric heat MBh = (Heater kW) (3.413)

Unit

Voltage

115 0.5 1.0 1.5 230 0.5 1.0 277 0.5 1.0 1.5 208 0.5 0.9 115 230 1.0 277 1.0 1.5 208 0.9 115 230 1.0 1.5 2.0 277 1.0 1.5 2.0 208 0.9 1.4 1.8 115 230 1.5 2.0 2.5 3.0 277 1.5 2.0 2.5 3.0 4.0 208 1.4 1.8 2.3 2.7 115 230 2.0 2.5 3.0 4.0 277 2.0 2.5 3.0 4.0 208 1.8 2.3 2.7 3.6 115 230 2.5 3.0 4.0 277 2.5 3.0 4.0 208 2.3 2.7 3.6 115 230 3.0 4.0 5.0 6.0 277 208

1.0 1.5 2.0

1.5 2.0

2.0

3.0 4.0 5.0 6.0

2.7 3.6 4.5 5.4

MCA (Minimum Circuit Ampacity) Calculations and MFS (Maximum Fuze Size) Calculations

HACR (Heating, Air-Conditioning and Refrigeration) type circuit breakers are required in the branch circuit wiring for all fan coils with electric heat.

Note: MCA ratings are based on the unit and electric heat power supply having the same voltage. If the electric heat power supply is different, a separate circuit breaker may be required. Follow local codes.

Select a standard fuse size or HACR type circuit breaker equal to the MCA. Standard Fuse Sizes are: 15, 20, 25, 30, 35, 40, 45, 50, 60 amps. Use the next larger standard size if the MCA does not equal a standard size.

Heater Amps = (Heater kW x 1000)/Heater Voltage

Note: Use 120V heater voltage for 115V units. Use 240V

heater voltage for 230V units.

MCA = 1.25 x (heater amps + all motor FLAs)

MFS or HACR Type Circuit Breaker = (2.25 x Largest Motor FLA) + Second Motor FLA + Heater Amps (If Applicable)

See Tab le 8 through Tab le 1 0 for motor FLAs.

16 McQuay Catalog 722

Air Volume Capacity Data

Performance Data

Air volumes shown in the table are measured at the motor speeds indicated with 115v/60/1 electrical power, with a 1”

on a vertical cabinet unit or a discharge duct collar on a hideaway unit at approximately 0.10 inch of pressure drop.

throwaway filter installed, and with a stamped discharge grille

Table 7: SCFM, 115/60/1 Motor, Four-Row Primary Coil + Two-Row Preheat or Reheat (Factor 88%)

SCFM SCFM

Unit Size

Main

Rows

2 Row

3 Row

4 Row

2 Row

3 Row

4 Row

2 Row

3 Row

4 Row

2 Row

3 Row

4 Row

Heating

Coil

Rows

None 214 197 167

1 Row 197 181 154 1 Row 614 538 428

2 Row* 188 173 147 2 Row* 588 515 409

None 204 190 161

1 Row 188 175 148 1 Row 601 530 419

2 Row* 180 168 142 2 Row* 575 507 401

None 197 183 159

1 Row 181 169 146 1 Row 581 517 414

2 Row* 173 161 140 2 Row* 556 495 396

None 296 264 211

1 Row 272 243 194 1 Row 764 655 504

2 Row* 260 232 186 2 Row* 731 626 482

None 292 256 205

1 Row 268 236 188 1 Row 742 640 493

2 Row* 257 225 180 2 Row* 710 612 472

None 283 253 206

1 Row 260 233 189 1 Row 726 625 481

2 Row* 249 223 181 2 Row* 695 598 460

None 380 330 261

1 Row 349 304 241 1 Row 1021 916 773

2 Row* 334 291 230 2 Row* 977 876 740

None 365 325 250

1 Row 336 299 230 1 Row 974 883 756

2 Row* 321 286 220 2 Row* 932 845 723

None 368 319 249

1 Row 338 294 229 1 Row 943 856 739

2 Row* 323 281 219 2 Row* 902 818 707

None 600 524 421

1 Row 552 482 387

2 Row* 528 461 371

None 559 483 373

1 Row 514 445 343

2 Row* 492 425 329

None 554 486 409

1 Row 510 447 376

2 Row* 488 427 360

Motor on

High

Speed

Motor on

Medium

Speed

Motor

on Low

Speed

Unit Size

Main

Coil

Rows

2 Row

3 Row

4 Row

2 Row

3 Row

4 Row

2 Row

3 Row

4 Row

Heating

Coil

Rows

None 668 585 465

None 654 576 456

None 632 562 450

None 831 712 548

None 807 696 536

None 789 680 523

None 1110 995 840

None 1059 960 822

None 1025 930 803

Motor on

High

Speed

Motor on

Medium

Speed

Motor

on Low

Speed

McQuay Catalog 722 17

Performance Data

Motor Electrical Data

Table 8: Electrical Data - Standard (Free Discharge) Motor - 2 Row Coil

Motor

Speed

High 0.49 53 1059 0.56 63 993 0.68 72 991 1.32 123 1122 1.20 129 1015 1.37 148 987 2.52 237 1123 Med 0.42 44 984 0.48 53 886 0.57 59 876 0.99 95 987 1.01 108 910 1.16 124 866 1.81 175 1013

115 V

Low 0.35 36 856 0.39 42 726 0.45 45 705 0.90 81 815 0.83 84 741 0.92 95 681 1.64 153 864 High 0.27 53 955 0.30 62 837 0.38 75 928 0.61 122 1102 0.77 154 1070 0.72 147 860 1.15 236 1113 Med 0.23 48 766 0.24 52 639 0.30 59 764 0.44 87 910 0.58 48 709 0.58 120 681 0.83 166 960

208 V

Low 0.19 39 561 0.19 42 485 0.25 49 611 0.36 65 691 0.50 39 504 0.45 93 533 0.70 127 708 High 0.27 57 1026 0.30 67 949 0.37 75 998 0.63 133 1124 0.80 180 1093 0.73 163 954 1.19 261 1131 Med 0.23 52 914 0.25 60 791 0.31 64 880 0.41 89 1011 0.57 131 1006 0.61 139 797 0.81 178 1021

230

Low 0.20 45 742 0.21 50 607 0.26 6 737 0.36 78 844 0.50 111 870 0.50 113 616 0.71 149 831 High 0.28 55 1026 0.29 61 931 0.34 77 917 0.47 117 1118 0.79 172 1097 0.65 149 906 0.95 246 1104 Med 0.20 49 915 0.21 44 778 0.27 64 771 0.34 85 986 0.56 133 1007 0.50 126 737 0.74 188 933

265 V

Low 0.16 41 758 0.16 43 597 0.20 46 609 0.30 69 836 0.47 114 882 0.38 99 594 0.63 152 737 High 0.29 57 1049 0.29 66 948 0.35 75 955 0.49 132 1125 0.81 183 1110 0.71 159 948 0.97 265 1115 Med 0.22 51 953 0.22 58 788 0.27 65 820 0.34 86 1018 0.57 139 1030 0.51 135 791 0.72 196 968

277 V

Low 0.16 44 827 0.17 47 625 0.21 56 682 0.30 72 890 0.47 120 924 0.39 108 638 0.64 159 793

Table 9: Electrical Data - Standard (Free Discharge) Motor - 3 Row Coil

Motor Size 2 Size 3 Size 4 Size 6 Size 8 Size 10 Size 12

Speed Amps Watts RPM Amps Watts RPM Amps Watts RPM Amps Watts RPM Amps Watts RPM Amps Watts RPM Amps Watts RPM

High 0.48 52 1067 0.55 62 1005 0.68 72 994 1.29 121 1120 1.20 129 1018 1.37 149 992 2.48 231 1127 Med 0.41 43 1007 0.48 53 899 0.57 59 876 1.01 96 976 1.01 108 915 1.15 124 871 1.76 169 1029

115 V

Low 0.34 35 889 0.39 42 722 0.45 45 700 0.89 80 783 0.83 84 749 0.91 95 689 1.60 149 895 High 0.26 52 962 0.29 62 847 0.38 75 931 0.60 120 1100 0.77 154 1073 0.72 148 865 1.13 230 1117 Med 0.22 46 784 0.24 52 648 0.30 59 764 0.45 88 900 0.58 48 713 0.57 119 685 0.81 160 975

208 V

Low 0.18 38 583 0.19 42 482 0.25 49 607 0.36 64 664 0.50 39 509 0.45 93 539 0.68 124 733 High 0.26 55 1034 0.29 66 960 0.37 75 1001 0.62 131 1122 0.80 179 1096 0.72 163 959 1.17 254 1135 Med 0.22 50 935 0.25 59 803 0.31 64 880 0.42 90 1000 0.57 130 1011 0.60 138 802 0.79 172 1037

230

Low 0.19 44 771 0.21 50 604 0.26 6 732 0.36 77 811 0.50 111 879 0.49 113 624 0.69 145 861 High 0.27 54 1034 0.28 61 942 0.34 77 920 0.46 115 1116 0.79 172 1100 0.65 150 911 0.93 240 1108 Med 0.20 47 936 0.21 44 789 0.27 64 771 0.35 86 975 0.56 133 1012 0.49 126 742 0.72 182 948

265 V

Low 0.16 41 787 0.17 44 594 0.20 46 605 0.30 68 803 0.47 114 891 0.38 99 601 0.61 148 763 High 0.28 56 1057 0.29 65 959 0.35 75 958 0.48 130 1123 0.81 183 1113 0.70 159 953 0.95 258 1119 Med 0.21 49 975 0.22 58 800 0.27 65 820 0.35 87 1007 0.57 139 1035 0.51 134 796 0.70 189 983

277 V

Low 0.16 43 859 0.17 48 622 0.21 56 677 0.30 71 855 0.47 120 933 0.39 108 646 0.62 155 821

Size 2 Size 3 Size 4 Size 6 Size 8 Size 10 Size 12

Amps Watts RPM Amps Watts RPM Amps Watts RPM Amps Watts RPM Amps Watts RPM Amps Watts RPM Amps Watts RPM

Table 10: Electrical Data - Standard (Free Discharge) Motor - 4 Row Coil

Motor Size 2 Size 3 Size 4 Size 6 Size 8 Size 10 Size 12

Speed Amps Watts RPM Amps Watts RPM Amps Watts RPM Amps Watts RPM Amps Watts RPM Amps Watts RPM Amps Watts RPM

High 0.48 52 1069 0.54 61 1019 0.68 71 1002 1.28 118 1127 1.17 126 1027 1.36 152 993 2.46 228 1131 Med 0.41 43 1007 0.47 52 923 0.57 59 890 0.93 88 1017 0.98 105 935 1.15 123 863 1.73 166 1036

115 V

Low 0.34 35 888 0.38 41 779 0.45 45 712 0.86 77 873 0.81 83 769 0.91 94 684 1.57 147 909 High 0.26 52 964 0.29 60 859 0.38 74 938 0.60 117 1107 0.75 150 1083 0.71 151 865 1.12 227 1121 Med 0.22 46 784 0.23 50 665 0.30 59 776 0.41 81 938 0.56 47 729 0.57 118 678 0.80 157 982

208 V

Low 0.18 38 582 0.19 41 520 0.25 49 617 0.35 62 740 0.48 39 523 0.45 92 535 0.67 122 744 High 0.26 55 1036 0.29 64 973 0.37 74 1009 0.62 128 1129 0.78 175 1106 0.72 166 959 1.16 251 1139 Med 0.22 50 935 0.24 58 824 0.31 64 894 0.39 83 1042 0.55 127 1034 0.60 137 795 0.78 169 1044

230

Low 0.19 44 770 0.20 49 652 0.26 6 745 0.35 74 904 0.49 110 903 0.49 112 619 0.68 143 874 High 0.27 54 1036 0.28 59 955 0.34 76 927 0.46 112 1123 0.77 167 1110 0.65 153 911 0.92 237 1112 Med 0.20 47 936 0.21 42 810 0.27 64 783 0.32 79 1016 0.55 130 1034 0.49 125 735 0.71 179 954

265 V

Low 0.16 40 786 0.16 43 641 0.20 46 615 0.29 65 895 0.45 113 915 0.37 98 597 0.60 146 775 High 0.28 56 1059 0.28 63 972 0.35 74 966 0.48 127 1130 0.79 178 1123 0.70 162 953 0.94 255 1123 Med 0.21 49 975 0.21 56 821 0.27 65 833 0.32 80 1049 0.55 136 1058 0.51 133 789 0.69 186 990

277 V

Low 0.16 42 858 0.17 46 671 0.21 56 689 0.29 68 953 0.46 119 959 0.39 106 641 0.61 153 834

18 McQuay Catalog 722

Physical Data

Unit Data

Table 11: Unit Data

02 03 04 06 08 10 12

Primary Coil Data

Face Area, ft2 (cm2) Fins/inch (cm) 12 [4.7] 12 [4.7] 12 [4.7] 12 [4.7] 12 [4.7] 12 [4.7] 12 [4.7]

Coil Dimensions 2-Row

L x D x H, in (cm) 3-Row L x D x H, in (cm) 4-Row L x D x H, in (cm) Coil Volume, Gal (Liters)

2-Row 0.15 (0.6) 0.19 (0.7) 0.24 (0.9) 0.32 (1.2) 0.37 (1.4) 0.46 (1.7) 0.55 (2.1) 3-Row 0.20 (0.7) 0.26 (1.0) 0.32 (1.2) 0.45 (1.7) 0.52 (2.0) 0.64 (2.4) 0.77 (2.9) 4-Row 0.26 (1.0) 0.34 (1.3) 0.43 (1.6) 0.61 (2.3) 0.70 (2.6) 0.87 (3.3) 1.05 (4.0)

Reheat Coil Data: 1-Row, Hot Water or Steam

Face Area, ft2 (cm2) Fins/inch (cm) 12 [4.7] 12 [4.7] 12 [4.7] 12 [4.7] 12 [4.7] 12 [4.7] 12 [4.7]

L x D x H, in (cm) 11.8 x 0.9 x 6

Volume, Gal (Liters) 0.04 (0.1) 0.05 (0.2) 0.07 (0.3) 0.10 (0.4) 0.11 (0.4) 0.14 (0.5) 0.17 (0.7)

Preheat Coil Data, 2-Row, Hot Water or Steam

Hot Water or Steam

Face Area, ft2 (cm2) Fins/inch (cm) 12 [4.7] 12 [4.7] 12 [4.7] 12 [4.7] 12 [4.7] 12 [4.7] 12 [4.7]

L x D x H, in. (cm) 11.8 x 1.7 x 6

Volume, Gal (Liters) 0.08 (0.3) 0.10 (0.4) 0.13 (0.5) 0.19 (0.7) 0.22 (0.8) 0.29 (1.1) 0.35 (1.3)

Fan/Motor Data

Fan Quantity 1 1 2 2 3 4 4 Size, Dia” x W” (cm) 6.26 x 6.3

Motor Quantity 1 1 1 1 2 2 2

Filter Data

Part Number 668332901 668332902 668332903 668332907 668332905 668332906 668332904 1” (25.4 cm) Media TA only TA only TA only TA only TA only TA only TA only Quantity 1 1 1 1 2 2 2 L x D x H, in. (cm) 16 x 8.75 x 1

0.74 (685) 1.08 (1004) 1.43 (1323) 2.11 (1962) 2.46 (2281) 3.14 (2917) 3.83 (3559)

11.8 x 1.7 x 9

(30.0x4.4x22.9)

11.8 x 2.6 x 9 (30x6.6x22.9)

11.8 x 3.5 x 9

(30.0x8.8x22.9)

0.49 (456) 0.72 (669) 0.95 (882) 1.41 (1308) 1.64 (1521) 2.09 (1944) 2.55 (2372)

(30.0x2.2x15.2)

0.49 (456) 0.72 (669) 0.95 (882) 1.41 (1308) 1.64 (1521) 2.09 (1944) 2.55 (2372)

(30.0x4.4x15.2)

(15.9 x 16)

(40.6 x 22 x 2.5)

17.3 x 1.7 x 9

(43.9x4.4x22.9)

17.3 x 2.6 x 9

(43.9x6.6x22.9)

17.3 x 3.5 x 9

(43.9x8.8x22.9)

17.3 x 0.9 x 6

(43.9x2.2x15.2)

17.3 x1.7 x 6

(43.9x4.4x15.2)

7.95 x 6.3 (20 x 16)

21.5 x 8.75 x 1

(54.6 x 22 x 2.5)

22.8 x 1.7 x 9

(57.9x4.4x22.9)

22.8 x 2.6 x 9

(57.9x6.6x22.9)

22.8 x 3.5 x 9

(57.9x8.8x22.9)

22.8 x 0.9 x 6

(57.9x2.2x15.2)

22.8 x 1.7 x 6

(57.9x4.4x15.2)

6.26 x 6.3

(15.9 x 16)

27 x 8.75 x 1

68.5 x 22 x 2.5

33.8 x 1.7 x 9

(85.9x4.4x22.9)

33.8 x 2.6 x 9

(85.9x6.6x22.9)

33.8 x 3.5 x 9

(85.9x8.8x22.9)

33.8 x 0.9 x 6

(85.9x2.2x15.2)

33.8 x 1.7 x 6

(85.9x4.4x15.2)

7.95 x 6.3 (20 x 16)

38 x 8.75 x 1

(96.5 x 22 x 2.5)

39.3x 1.7 x 9

(99.8x4.4x22.9)

39.3 x 2.6 x 9

(99.8x6.6x22.9)

39.3 x 3.5 x 9

(99.8x8.8x22.9)

39.3 x 0.9 x 6

(99.8x2.2x15.2)

39.3 x 1.7 x 6

(99.8x4.4x15.2)

6.26 x 6.3

(15.9 x 16)

21.7 x 8.75 x 1

(56.1 x 22 x 2.5)

50.2 x 1.7 x 9

(127.6x4.4x22.9)

50.2 x 2.6 x 9

(127.6x6.6x22.9)

50.2 x 3.5 x 9

(127.6x8.8x22.9)

50.2 x 0.9 x 6

(127.6x2.2x15.2)

50.2 x 1.7 x 6

(127.6x4.4x15.2)

6.26 x 6.3

(15.9 x 16)

27.2 x 8.75 x 1

(69.0 x 22 x 2.5)

61.3 x 1.7 x 9

(155.7x4.4x22.9)

61.3 x 2.6 x 9

(155.7x6.6x22.9)

61.3 x 3.5 x 9

(155.7x8.8x22.9)

61.3 x 0.9 x 6

(155.7x2.2x15.2)

61.3 x 1.7 x 6

(155.7x4.4x15.2)

7.95 x 6.3 (20 x 16)

32.7 x 8.75 x 1

(83.1 x 22 x 2.5)

Table 12: Approximate Ship ping Weights - lbs (kg)*

Unit Type

FCVC,FCVS 84 (38) 95 (43) 108 (49) 131 (60) 152 (69) 177 (80) 202 (92) FCVH 55 (25) 63 (29) 74 (34) 91 (41) 110 (50) 129 (59) 149 (68)

Note: *Approximate shipping weights do not include valve packages, hot water coils, electric heaters or other options.

S02S03S04S06S08S10S12

Unit Size

McQuay Catalog 722 19

Physical Data

PREHEAT OPTION NOITPO TAEHERNOITPO TAEH CIRTCELE

PRIMARY

PREHEAT

FRONT VIEW

5 [127]

8.9 227

6.1 154

8.8

[224]

8.8

[224]

BACK VIEW

ELECTRICAL CONTROL BOX

OPTIONAL DISCONNECT SWITCH

DRAIN PAN 7/8" OD CONNECTION

ELECTRIC HEAT PANEL BOX

1.3

33.8

3.6

90.3

TOP VIEW

DISCHARGE GRILL

ELECTRICAL CONTROL ACCESS DOOR

ELECTRIC HEAT

PRIMARY

1.0

24.7

PRIMARY

REHEAT

4.6

[117]

9.3

[236]

3.4 [86]

15.7

[399]

17.6

[447]

Unit Dimensions

Figure 7: Dimensions: Flat Top Fan Coils

Dimension

S02 S03 S04 S06 S08 S10 S12

inch mm inch mm inch mm inch mm inch mm inch mm inch mm

Unit Width A 35.0 889 40.5 1029 46.0 1168 57.0 1448 62.5 1588 73.5 1867 84.5 2146 Unit Height B 25.0 635 25.0 635 25.0 635 25.0 635 25.0 635 25.0 635 25.0 635 Unit Depth C 10.0 254 10.0 254 10.0 254 10.0 254 10.0 254 10.0 254 10.0 254 Discharge Grille - Width E 16.3 414 21.8 554 27.3 693 38.3 973 43.8 1113 54.8 1392 65.8 1671 Return Air Opening - Width F 16.2 411 21.7 551 27.2 691 38.2 970 43.7 1110 54.7 1389 65.7 1669 Primary Coil - Water Supply BB 16.7 424 16.7 424 16.7 424 16.7 424 16.7 424 16.7 424 16.7 424

GG 7.8 198 7.8 198 7.8 198 7.8 198 7.8 198 7.8 198 7.8 198

Primary Coil - Water Return DD 21 533 21 533 21 533 21 533 21 533 21 533 21 533

Preheat Coil - Water Return CC 18.7 475 18.7 475 18.7 475 18.7 475 18.7 475 18.7 475 18.7 475

EE 1.1 28 1.1 28 1.1 28 1.1 28 1.1 28 1.1 28 1.1 28

HH 1.2 30 1.2 30 1.2 30 1.2 30 1.2 30 1.2 30 1.2 30

Preheat Coil - Water Supply AA 15 381 15 381 15 381 15 381 15 381 15 381 15 381

Reheat Coil - Water Return CC 23.2 589 23.2 589 23.2 589 23.2 589 23.2 589 23.2 589 23.2 589

FF 4.7 119 4.7 119 4.7 119 4.7 119 4.7 119 4.7 119 4.7 119

HH 4.2 107 4.2 107 4.2 107 4.2 107 4.2 107 4.2 107 4.2 107

Reheat Coil - Water Supply AA 20.3 516 20.3 516 20.3 516 20.3 516 20.3 516 20.3 516 20.3 516

FF 8.3 211 8.3 211 8.3 211 8.3 211 8.3 211 8.3 211 8.3 211

Electric Heat Connection AA 15.1 384 15.1 384 15.1 384 15.1 384 15.1 384 15.1 384 15.1 384

CC 3.0 76 3.0 76 3.0 76 3.0 76 3.0 76 3.0 76 3.0 76

20 McQuay Catalog 722

Figure 8: Dimensions: Slope Top Fan Coils

FRONT VIEW

6.1

154

8.9

227

[127]

15.7

[399]

17.6

[447]

BACK VIEW

ELECTRICAL CONTROL BOX

OPTIONAL

DISCONNECT SWITCH

DRAIN PAN 7/8" OD

3.7

95.1

1.9

47.4

TOP VIEW

ELECTRIC HEAT OPTION

PREHEAT OPTION

REHEAT OPTION

DISCHARGE

GRILL

ELECTRIC CONTROL ACCESS DOOR

4.6

[117]

9.3

[236]

3.4 [86]

23.1

REHEAT

PRIMARY

PREHEAT

PRIMARY

ELECTRIC HEAT

8.8

[224]

8.8

[224]

Physical Data

McQuay Catalog 722 21

Dimension

Unit Width A 35.0 889 40.5 1029 46.0 1168 57.0 1448 62.5 1588 73.5 1867 84.5 2146 Unit Height B 27.6 701 27.6 701 27.6 701 27.6 701 27.6 701 27.6 701 27.6 701

S02 S03 S04 S06 S08 S10 S12

inch mm inch mm inch mm inch mm inch mm inch mm inch mm

Unit Depth C 10.0 254 10.0 254 10.0 254 10.0 254 10.0 254 10.0 254 10.0 254 Discharge Grille - Width E 16.3 414 21.8 554 27.3 693 38.3 973 43.8 1113 54.8 1392 65.8 1671 Return Air Opening - Width F 16.2 411 21.7 551 27.2 691 38.2 970 43.7 1110 54.7 1389 65.7 1669 Primary Coil - Water Supply BB 16.7 424 16.7 424 16.7 424 16.7 424 16.7 424 16.7 424 16.7 424

Primary Coil - Water Return DD 21 533 21 533 21 533 21 533 21 533 21 533 21 533

Preheat Coil - Water Return CC 18.7 475 18.7 475 18.7 475 18.7 475 18.7 475 18.7 475 18.7 475

GG 7.8 198 7.8 198 7.8 198 7.8 198 7.8 198 7.8 198 7.8 198

EE 1.1 28 1.1 28 1.1 28 1.1 28 1.1 28 1.1 28 1.1 28

HH 1.2 30 1.2 30 1.2 30 1.2 30 1.2 30 1.2 30 1.2 30

Preheat Coil - Water Supply AA 15 381 15 381 15 381 15 381 15 381 15 381 15 381

Reheat Coil - Water Return CC 23.2 589 23.2 589 23.2 589 23.2 589 23.2 589 23.2 589 23.2 589

Reheat Coil - Water Supply AA 20.3 516 20.3 516 20.3 516 20.3 516 20.3 516 20.3 516 20.3 516

Electric Heat Connection AA 15.1 384 15.1 384 15.1 384 15.1 384 15.1 384 15.1 384 15.1 384

FF 4.7 119 4.7 119 4.7 119 4.7 119 4.7 119 4.7 119 4.7 119

HH 4.2 107 4.2 107 4.2 107 4.2 107 4.2 107 4.2 107 4.2 107

FF 8.3 211 8.3 211 8.3 211 8.3 211 8.3 211 8.3 211 8.3 211

CC 3.0 76 3.0 76 3.0 76 3.0 76 3.0 76 3.0 76 3.0 76

Physical Data

ELECTRIC HEAT

DRAIN PAN 7/8 OD CONNECTION

PRIMARY

REHEAT

127

4.6

9.3

ELECTRIC HEAT OPTION

PREHEAT OPTION REHEAT OPTION

5.4

138.2

1.0

7.3

[185]

26.6

RON

T VIEW

FRONT DISCHARGE

LECTRIC

CONTROL BOX

OPTIONAL DISCONNECT SWITCH

8.9

227

6.1

154

BACK VIEW

LECTRIC HEAT

PANEL BO

TOP VIEW

PRIMARY

PREHEAT

0.6 [15.9]

Figure 9: Dimensions: Hideaway, Front-Discharge Fan Coils

Dimension

Unit Width A 18.8 475 24.3 617 29.8 757 40.8 1036 46.3 1176 57.3 1455 68.3 1735 Unit Height B 24.0 610 24.0 610 24.0 610 24.0 610 24.0 610 24.0 610 24.0 610 Unit Depth C 9.6 243 9.6 243 9.6 243 9.6 243 9.6 243 9.6 243 9.6 243 Discharge Grille - Width E 16.3 414 21.8 554 27.3 693 38.3 973 43.8 1113 54.8 1392 65.8 1671 Return Air Opening - Width F 16.2 411 21.7 551 27.2 691 38.2 970 43.7 1110 54.7 1389 65.7 1669 Control Box to Floor G 17.6 447 17.6 447 17.6 447 17.6 447 17.6 447 17.6 447 17.6 447 Disconnect Switch to Floor H 15.7 399 15.7 399 15.7 399 15.7 399 15.7 399 15.7 399 15.7 399 Primary Coil - Water Supply BB 16.7 424 16.7 424 16.7 424 16.7 424 16.7 424 16.7 424 16.7 424

Primary Coil - Water Return DD 21 533 21 533 21 533 21 533 21 533 21 533 21 533

Preheat Coil - Water Return CC 18.7 475 18.7 475 18.7 475 18.7 475 18.7 475 18.7 475 18.7 475

Preheat Coil - Water Supply AA 15 381 15 381 15 381 15 381 15 381 15 381 15 381

Reheat Coil - Water Return CC 23.2 589 23.2 589 23.2 589 23.2 589 23.2 589 23.2 589 23.2 589

Reheat Coil - Water Supply AA 20.3 516 20.3 516 20.3 516 20.3 516 20.3 516 20.3 516 20.3 516

Electric Heat Connection AA 15.1 384 15.1 384 15.1 384 15.1 384 15.1 384 15.1 384 15.1 384

S02 S03 S04 S06 S08 S10 S12

inch mm inch mm inch mm inch mm inch mm inch mm inch mm

GG 7.8 198 7.8 198 7.8 198 7.8 198 7.8 198 7.8 198 7.8 198

EE 1.1 28 1.1 28 1.1 28 1.1 28 1.1 28 1.1 28 1.1 28

HH 1.2 30 1.2 30 1.2 30 1.2 30 1.2 30 1.2 30 1.2 30

FF 4.7 119 4.7 119 4.7 119 4.7 119 4.7 119 4.7 119 4.7 119

HH 4.2 107 4.2 107 4.2 107 4.2 107 4.2 107 4.2 107 4.2 107

FF 8.3 211 8.3 211 8.3 211 8.3 211 8.3 211 8.3 211 8.3 211

CC 3.0 76 3.0 76 3.0 76 3.0 76 3.0 76 3.0 76 3.0 76

22 McQuay Catalog 722

Figure 10: Dimensions: Hideaway, Top-Discharge Fan Coils

1.3

32.9

1.3

32.9

ELECTRIC HEAT

127

4.6

117

9.3

236

FRONT VIEW

ELECTRIC

CONTROL BOX

OPTIONAL DISCONNECT SWITCH

0.6 [15.9]

8.9

227

6.1

154

BACK VIEW

3.5

89.6

4.8

120.7

TOP V

IEW

TOP DISCHARGE

PRIMARY

DRAIN PAN 7/8 OD CONNECTION

REHEAT

1.3

32.9

PRIMARY

PREHEAT

PRIMARY

ELECTRIC HEAT OPTION

PREHEAT OPTION REHEAT OPTION

0.6 [15.9]

ELECTRI

CONTROL BO

OPTIONAL DISCONNECT SWITCH

7.3

[185]

Physical Data

Dimension

Primary Coil - Water Return DD 21 533 21 533 21 533 21 533 21 533 21 533 21 533

Preheat Coil - Water Return CC 18.7 475 18.7 475 18.7 475 18.7 475 18.7 475 18.7 475 18.7 475

Preheat Coil - Water Supply AA 15 381 15 381 15 381 15 381 15 381 15 381 15 381

Reheat Coil - Water Return CC 23.2 589 23.2 589 23.2 589 23.2 589 23.2 589 23.2 589 23.2 589

Reheat Coil - Water Supply AA 20.3 516 20.3 516 20.3 516 20.3 516 20.3 516 20.3 516 20.3 516

Electric Heat Connection AA 15.1 384 15.1 384 15.1 384 15.1 384 15.1 384 15.1 384 15.1 384

S02 S03 S04 S06 S08 S10 S12

inch mm inch mm inch mm inch mm inch mm inch mm inch mm

GG 7.8 198 7.8 198 7.8 198 7.8 198 7.8 198 7.8 198 7.8 198

EE 1.1 28 1.1 28 1.1 28 1.1 28 1.1 28 1.1 28 1.1 28

HH 1.2 30 1.2 30 1.2 30 1.2 30 1.2 30 1.2 30 1.2 30

FF 4.7 119 4.7 119 4.7 119 4.7 119 4.7 119 4.7 119 4.7 119

HH 4.2 107 4.2 107 4.2 107 4.2 107 4.2 107 4.2 107 4.2 107

FF 8.3 211 8.3 211 8.3 211 8.3 211 8.3 211 8.3 211 8.3 211

CC 3.0 76 3.0 76 3.0 76 3.0 76 3.0 76 3.0 76 3.0 76

McQuay Catalog 722 23

Physical Data

Figure 11: Wall plate dimensions and kit part numbers

Unit Size

Inches (mm) Kit Part Number

Wall Plate

Recommended

Wall Opening

Front

Discharge

Top

Discharge

37.25 x 26.5 (946 x 673)

34 x 23

(864 x 584)

668114901 668114908

42.75 x 26.5

(1086 x 673)

40 x23

(1016 x 584)

668114902 668114909

48.25 x 26.5

(1226 x 673)

45 x 23

(1143 x 584)

668114903 668114910

59.25 x 26.5

(1505 x 673)

56 x 23

(1422 x 584)

668114904 668114911

64.75 x 26.5

(1645 x 673)

62 x 23

(1575 x 584)

668114905 668114912

75.75 x 26.5

(1924 x 673)

72 x 23

(1828 x 584)

668114906 668114913

86.75 x 26.5

(2203 x 673)

84 x 23

(2134 x 584)

668114907 668114914

Access doors on both sides of wall plate

Discharge grille (front discharge units)

Intake grille

Note: Wall plate is designed for use with ThinLine vertical

hideaway units mounted a minimum of 1.5 inches (38 mm) above the floor. Wall plates for Size 08, 10 and 12 units are in two sections. For installation instructions, see McQuay IM 1022.

STYLE

DIMENSIONS (INCHES)

ABC

2 BRICK X 2 BRICK 163⁄

43⁄

33⁄

4 BRICK X 2 BRICK 331⁄

43⁄

33⁄

ALL DIMENSIONS APPROXIMATE.

CERTIFIED DRAWINGS AVAILABLE ON REQUEST.

Decorative Wall Plate Dimensions

Fresh Air Intake Box Dimensions

Figure 12: Fresh Air Intake Box Dimensions

24 McQuay Catalog 722

Engineering Guide Specification

McQuay ThinLine 3G Fan Coil

Engineering Guide Specification

McQuay ThinLine 3G Vertical -floor type and wall/hideaway type fan coil are furnished as a vertical blow-through with either a primary coil for cooling only or for heating and cooling, or with a combination of a primary coil for cooling and a secondary coil for heating, which can either be in the preheat or reheat position.

Performance

Unit capacities are certified under Industry Room Fan-Coil Air Conditioner Certification Program in accordance with ARI Standard 440-97. All standard units are ETL listed in the United States and Canada and comply with NFPA 90A requirements.

General Construction - All Units

The unit includes a chassis, coil(s), fan wheel(s), fan casing(s), fan board and motor(s). Units also include a noncorrosive, ABS main drain pan, positively sloped in every plane and insulated with closed-cell insulation. All units with factory provided standard piping packages also include a noncorrosive secondary drain pan. Steel parts exposed to moisture are galvanized and if necessary are insulated to prevent condensation. The complete fan assembly, which includes the drain pan and motor is easily removed for service and maintenance. A quick-disconnect motor electrical plug is also provided. The standard chassis construction is 18-gage galvanized steel. The unit is acoustically and thermally insulated with closed-cell insulation.

Cabinet

The exposed panels and cabinetry are aesthetically designed and fabricated of heavy gauge steel, available in either 18 or 16 gauge. They have an electrostatically applied, baked-on powder paint finish available in Antique Ivory as standard. Cupola White, Soft Gray, Off White and Putty Beige are available as option. Other colors can be made available upon request. Standard finish meets ASTM B117 specifications (salt spray test).

Vertical Cabinet (Flat Top) and Slope Top Units

Discharge air grilles are recessed to resist condensate formation and provided with either a multi-directional discharge air grille or a stamped metal grille. Multi-directional discharge air grilles allow the end-user to change the discharged air to four different directions by rotating in 90° increments. Painted and aesthetically designed metal hinged control access doors are made rigid by channel forming and constructed to be flush with the top panel. Units equipped with the tamperproof option have a key-operated locking access door and tamper-proof access door screws, as well as 16-gauge front and side panels to help prevent nuisance tampering with unit and/or controls.

Individual and removable side panels are furnished on both ends of the unit to allow full access to valves, piping, electrical connections and optional secondary drain pan without the need to remove the front. The separate removable front panel allows full access to fans, motors and the main drain pan. When requesting a vertical cabinet it is strongly suggested to provide sub-bases. For McQuay the 3.5" sub-base is a standard part of the unit. Other heights are available as special option to help elevate the cabinet units to a specified height; for example, to reach the bottom of a window sill. The sub-base is also the area where the motorized fresh air damper is situated. Subbases are 16-gage steel construction and have an oxford brown/black paint finish. The sub-base depth and width is identical to the unit's dimensions.

Hideaway (Fully Recessed) Units

Hideaway units are available for top discharge with a duct collar or for front discharge.

An exposed, finished, decorative Wall plate panel is available on hideaway units. It is available standard with18-gage steel construction or tamperproof with 16-gage steel construction. Wall plates are shipped separately from the unit.

Coils

All water coils are first leak tested at 400 psig (2760 kPa) then re-tested at 300 psig (690 kPa) after all final piping connections are made, including valve/piping packages. Maximum main coil working pressure is 300 psig (2,069 kPa). Maximum entering water temperature is 200°F (93°C). Tubes and u-bends are 3/8" (10 mm) OD copper. Fins are aluminum and are mechanically bonded to the copper tubes. Coil stubouts are 5/8" (16 mm) OD copper tubing. Piping connections are expanded to accept standard copper tubing 5/8" (16 mm) OD. Water coil fins have full drawn collars to provide a continuous surface cover over the entire tube for maximum heat transfer. Seamless copper tubes are mechanically expanded into the fins to provide a continuous primary-tosecondary compression bond over the entire finned length for maximum heat transfer rates.

Water coils are provided with headers of seamless copper tubing with intruded tube holes to permit expansion and contraction without creating undue stress or strain. Coil casing are constructed of galvanized steel. Coil connections are copper sweat connections with connection size to be determined by manufacturer based upon the most efficient coil circuiting. Vent and drain connections are furnish soldered and installed on the primary coil by the coil connection. An air vent is provided for the secondary heating coil-factory installed when provided with a valve package, shipped loose when valve/piping packages are provided by others. Vent connections are provided at the highest point to ensure proper venting. Drain connections are at the lowest point.

McQuay Catalog 722 25

Engineering Guide Specification

Primary and Secondary Coils

Primary coils for cooling only or for cooling and heating are available as 2, 3, 4 row coils and can be used in combination with a secondary heating coil. Secondary, 1-row heating coils are available in the preheat or reheat position. 2-row coils are available in the preheat position. The secondary heating 1 row coils are available for use with both hot water and steam. Hot water maximum working pressure is 300 psig (2,069 kPa), and the maximum entering water temperature is 200°F (93°C). The steam coil maximum working pressure is 15 psig (103 kPa).

Electric Heating Coils

The auxiliary electric heating coil can be provided as either the total source of heat or auxiliary intermediate season heating. The electric heat coils are located in the preheat position, and are the open-wire type. The electric heat option is available to operate at the same voltage as the unit or with a separate power supply voltage to reduce amperage consumption. Single power connection is provided when unit and electric heat is of same voltage. A second power connection must be used when the fan coil and electric heat have different voltages. All standard electric heat coils are ETL listed and interlocked with the fan motor switch. Therefore, electric heat operation is possible only when the fan is running. A unit-mounted magnetic contactor is supplied on all voltages. High temperature cutouts with automatic reset and another one with manual reset must be provided as an integral part of the elements to de-energize the electric heat in the event of an overheat condition.

Supply Fan

Fan are dynamically balanced, forward curved, double-width centrifugal type constructed of 18 gauge galvanized steel for corrosion resistance. Fan housing construction is formed sheet metal.

Motor

Supply fans are provided with permanent split-capacitor motors, high efficiency, with 3 speed tap as minimum and are run-tested in the assembled unit and permanently lubricated. All motors are UL and CSA listed and have integral thermal overload protection with a maximum ambient operating temperature of 104°F. Motors are capable of starting at 80 percent of rated voltage and operating at 90 percent of rated voltage on all speed settings. Motors can operate up to 10 percent overvoltage. Motor wires include a quick-disconnect motor plug for easy removability.

Disconnect Switch

A unit-mounted disconnect switch is available as a standard option on all units.

Filter Section

Filters are 1" (25 mm) throwaway type. They are concealed from sight and easily removable. Other filter types can be provided upon request.

Fresh Air Damper

A fresh air opening with a damper is available as a factoryinstalled or field-installed option. Dampers are constructed of 18-gage steel. Fresh air is sealed off with gasket material when the damper is set in the closed position. The fresh air damper assembly includes a cleanable, fine wire mesh insect screen. Damper assembly is located in the unit sub-base below the unit filter, allowing fresh air to be filtered and mixed with the return air.

The manual damper is field-adjustable to allow from zero to 25% fresh air. The manual fresh air damper can also be provided with an automatic, two-position spring return actuator.

Controls

All McQuay Vertical ThinLine 3G fan coil units are available as a basic unit with no controls or can be provided with various unit mounted or wall mounted thermostats and controls.

Unit-mounted control options

• Unit-mounted, dial-type thermostat, integrated with a 4-

position, 3-speed fan switch and a manual or automatic system changeover switch. The manual changeover switch allows the user to change from Heat to Off to Cool as needed or, with On-Off only, for auto-changeover from Cool to Heat and vice versa. The fan runs continuously at the manually selected fan speed: high, medium or low.

• Digital display, microprocessor-based, thermostat-controller

that supplies 24VAC output control to valves and motorized dampers (when available). The use of an advanced proportional integral (PI) algorithm allows precise control of zone comfort under varying operational and environmental conditions. It allows the fan to run continuously at the manually selected fan speed (high, medium or low) and cycles the cooling or heating valve(s) on and off as required to meet the thermostat set point temperature. Manual or automatic changeover options are available as well as a remote setback capability from a time clock or facility management system. Features include a Fahrenheit or Celsius digital display and a built-in purge cycle which assists the controller to determine if the 2 pipe hydronic system is supplying hot water or chilled water. With factory installed valve packages and with controls, it eliminates the need for an inefficient bleed or bypass line. Digital display thermostats are available to be used with on-off, 3 wire floating and 0-10 vdc or 4-20ma proportional actuator valves.

• Unit-mounted DDC interface board to be used for remote

thermostat, controller or facility management system.

26 McQuay Catalog 722

Engineering Guide Specification

Wall (remote) mounted thermostat options

To facilitate wall-mounted (remote) options, all vertical units are provided with a DDC, low-voltage interface board to accommodate a low-voltage thermostat to control the unit. The interface board / j-box has three 24-volt relays, single-point power entry, terminal connection and a transformer to control the fan motor, 24 volt actuators, valves and allows to integrate the following additional optional inputs when required: return air sensor, pipe/temperature sensor and condenser overflow switch.

Remote mounted controls and switches

4P-3SP switch: Manual 4 position-3 Speed Rotary Fan Switch. The Vertical mounted, manual rotary 4 position - three-speed fan switch is a simple OFF-HI-MED-LO fan controls which allows fan mode selection. This switch can be applied for usage directly connected to the fan motor to operate on line voltage.

MTE155 3-Speed Fan Switch with Manual On/Off switch: Vertical mounted, with manual On/Off system switch and manual 3 three-speed fan switch; a simple HI-MED-LO fan controls which allows fan mode selection. This switch can be applied for usage directly connected to the fan motor to operate on line voltage or to be used as low-voltage through the interface board and j-box.

MTA155 and MTB155 Thermostat with solid state accuracy provides on/off control of fan coils with low voltage or any line voltage valves, relays and fan motors.

MTA155: A HEAT-OFF-COOL system switch manually selects heating or cooling mode. A separate fan switch allows manual selection of fan speed (Hi-MED-L0). With this thermostat the fan operation is internally wired for fan continuous operation and the fan will be off when the system switch is off. The fan supply input is switched to fan speed outputs (HI - MED - LO).This switch can be applied for usage with line voltage, directly connected to the fan motor or used as low-voltage through the interface board and j-box.

MTB155: An ON-OFF system switch enables autochangeover of heating and cooling modes. A separate fan switch allows manual selection of fan speed (Hi-MED-L0). This switch can be applied for usage with line voltage, directly connected to the fan motor or used as low-voltage through the interface board and j-box.

MTA170 and MTB170 microprocessor digital display thermostat is a stand-alone digital controller that supplies relay control of heating, cooling, outside air, and up to three fan speeds. The thermostat's configuration can supply standard (continuous or cycling) fan, staged fan, and fan coil operation. Energy saving features include temperature range limit adjustment, staged fan operation, occupancy detection, and setback control.

MTA170 fan speed is determined by manual selection of HI, MED, or LO. On MTB170 the fan speed is configured for staged fan and does not have speed selection available.

MT 158 and MT 168 Digital display microprocessor-based thermostat-controller that supplies low voltage output control to valves and motorized dampers (when available). The use of an advanced proportional integral (PI) algorithm allows precise control of zone comfort under varying operational and environmental conditions. The digital display, with easy-to-use adjustment buttons, allows convenient access to current zone temperature, set point temperature and operating mode. Optional manual or automatic changeover, setback capability from a time clock or facility management system and auxiliary heat functions are available, on selected models to adapt to the different application requirements. It includes a fan switch with Off, Hi, Med and Low speed selections. Features include a Fahrenheit or Celsius digital display and a built-in purge cycle which assists the controller to determine if the 2 pipe hydronic system is supplying hot water or chilled water. With factory installed valve packages it eliminates the need to have the inefficient bleed or bypass line. Digital display thermostats are available to be used with on-off, 3 wire floating and 0-10 vdc or 4-20ma proportional actuator valves, either N.O. or N.C. valves.

MTA and MTB 158 thermostats are designed to control OnOff, N.O. and N.C valves, relays and three wire floating valves. Through the dip switches, the thermostat can be configured to work with low voltage On-Off or 3 wire floating valves.

MT168 thermostats are designed to control 0-10 VDC/4-0 mA valves. These units may include a fan switch with one or more fan speed selections. The thermostat is shipped with all dip switches in the "ON" (closed) position. And the damper output (when utilized) is ON when mode is AUTO, HEAT or COOL, damper is OFF in set back.

V alve/Piping Packages

All piping packages are tested at 300 psig and re-tested once integrated and soldered to the coil at 300 psig (690 kPa) The maximum working pressure of the interconnecting piping is 300 psig (2,069 kPa). Piping packages are available in 16 different configurations with or without unions and/or cleanoff valves on the strainers. McQuay Hydronic fan-coil units can be provided with valve/piping packages factory built and assembled, available for the main cooling (heating) coil and the pre-heat or re-heat coil. Factory wired shipped loose within unit or final field soldering; also available as factory mounted/ soldered or available as field installed kit.

All cooling piping packages are located directly above the auxiliary drain pan to allow most of the condensate to be captured and properly drained. Any part of the piping package situated above the factory supplied auxiliary drain pan does not required insulation. However, the area around final

McQuay Catalog 722 27

Engineering Guide Specification

connections and anything downstream of the valve package should be insulated to prevent condensation from forming.

Piping packages are available for the primary coil, as cooling for 4 pipe systems or as cooling and heating for 2 pipe systems, and for the pre-heating as well as the re-heating coil, used on four-pipe systems. Left or right hand coil connections either as same hand or opposite hand, except for the reheat coil where same hand is required. Interconnecting piping refers to the copper piping which is attached to the coil connections and to all other components (i.e. control valves, shutoff valves, circuit setters, etc.) It is 1/2" nominal (5/8" OD) copper pipe. Since manual air bleed is part of the primary coil assembly, it is not called out within the piping packages. However, for the secondary heating coils, the manual air vent becomes incorporated on all factory-installed valve/piping packages. The air vent can be upgraded to an auto air bleed if desired.

Valve/Piping Packages - Placement and Configurations

Although McQuay has the capability to deviate from the preset of valve/piping packages to meet almost any customer requirements, McQuay has set 6 standard categories consisting of: Shut-Off ball valve only, Shut-Off Ball valve with Strainers, Basic, Enhanced, Premium and Deluxe Valve Packages.

• Shut-Off Ball Valves with memory stop on the supply and a

shut off ball valve on the return.

• Shut-Off Ball Valves with Strainer with memory stop on the

supply and with strainer on the return.

• Basic: 2-way or 3-way control valve (3-way valve with

bypass balancing restrictor) and shut off ball valve on the supply, and shut off ball valve on the return.

• Enhanced: 2-way or 3-way control valve (3-way valve with

bypass balancing restrictor) and shut off ball valve with memory stop and strainer on the supply, and shut off ball valve with memory stop on the return.

• Premium: 2-way or 3-way control valve (3-way valve with

bypass balancing restrictor) and shut off ball valve and strainer on the supply and manual circuit setter (flow control) and shut off ball valve on the return.

• Deluxe: 2-way or 3-way control valve (3-way valve with

bypass balancing restrictor), and shut off ball valve and strainer on the supply and auto-fixed flow (circuit setter) control and shut off ball valve on the return.

All above valve/ping combinations packages are also available with the following additional options:

• Unions on both supply and return; P/T ports on both supply

and return; strainer with clean-out draining valve; auto air bleed ports; threaded connection at the supply and return connection to allow stainless steel flexible hose connections.

• 12" or 18" stainless steel braided hoses.

Control valves

• Two-Way, Two-Position (On-Off) Control Valves are rated

for a close-off pressure of 38 psig. The valve actuator is easily removable for service or replacement without the need to remove the valve body from piping packages. Normally closed and normally open, fail safe valves are available. As standard option, for main coil, McQuay provides normally closed valves to isolate the coil during a loss of power. However for heating coils, on four pipe systems, normally open valves are available to allow them to remain open during a loss of power. Opposite N.O. or N.C. valves are available. McQuay locates valves in the water supply pipe to operate as mixing valves.

• Three-Way, Two-Position (On-Off) Control Valves either

allow full water flow through the coil or divert the flow through a bypass line. Normally close or open three-way, two-position valves are rated for a maximum 38 psig (261 kPa) close off pressure across the valves. All standard threeway valves come with a fixed-balance orifice in the bypass line to compensate for flow balancing in the bypass position, eliminating the need for an additional balancing valve. Valves are also available with a maximum close-off pressure of 50 psig (345 kPa). The valve actuator is easily removable for service without removing the valve body from piping. Depending on the actuator chosen the valves respond to a line voltage (115, 208-230 or 265-277 VAC) or to a 24 VAC signal from the McQuay thermostat or controller. Normally open or normally closed valves are available.

• Two- way and Three Way Modulating Control Valves are

rated for a maximum close off pressure of 50 psig (345 kPa). Two or three way modulating valves modulate the water flow through the coil in response to a signal from the McQuay thermostat or controller. Upon request McQuay has the capability to offer three-wire floating point equal percentage valves or 0-10vdc proportional modulating valves. The modulating valves are factory mounted in the supply water pipe upstream of the coil.

Other Available Options

Tamperproof Locks

Key-operated locking access doors and/or panels help prevent nuisance tampering with unit and/or controls.

Multi-Directional Discharge Grille

Multi-directional grilles are square and allows four different discharge directions by rotating the grilles 90°. The multidirectional grille construction is available in oxford brown or Cupola white with a 16° angle on the discharge louvers and recessed into the discharge panel to prevent condensation from forming on the grille exterior.

28 McQuay Catalog 722

Engineering Guide Specification

Stamped Grille Inlet / Outlet

Stamped grille is one single grille available on the discharge and return air available on all cabinet units. The grilles have a Oxford brown paint finish with 18-gage steel construction. The louvers are formed at a 16° angle, and the discharge grilles are recessed to prevent condensate formation on the surface of the grille. As optional, cupola white can be provided upon request

Leveling Feet

Screw-in bolts and mounting assembly is used to level the unit and is available on all vertical cabinet units. 1 inch adjustment for positive leveling.

Rear Cabinet Extension

Cabinet extensions are available to increase the depth of the vertical flat top and slope top units. The additional depth may be required to provide a cavity for piping or electrical routing behind the fan coil. The rear cabinet extension is also used when there is a window sill or wall column that extends out past the front of standard units depth. Extension are 18-gage steel construction and have the same paint finish as the unit and are available in depth of 4" and 8" with height and width identical to the unit's dimensions. Other depths are available upon request.

Condensate Overflow Switch

A float switch (dry-contact) can be factory installed in the main drain pan to detect a high condensate water level before overflow can occur.

Fresh Air Aluminum Wall Boxes

An aluminum wall box with two sets of louvers is available for field installation. It is placed in the outside wall of the building for decorative purposes and to act as a rain shield to minimize the potential of water coming into the unit. A field-supplied duct or sleeve from the wall box to the unit fresh air opening is required.

End Pockets for Valve/Piping Package

McQuay standard end pockets of 8-1/8" are already considered as extended pocket and are large enough to fit the most elaborate McQuay valve and piping and still provide sufficient room for maintenance and serviceability. Over-extended end pockets can be made available to cover already built-in exposed piping or to meet specific retrofits.

McQuay Catalog 722 29

McQuay Training and Development

Now that you have made an investment in modern, efficien t McQuay equipment, its care should be a high priority. For training information on all McQuay HVAC products, please visit us at www.mcquay.com and click on training, or call 540-248-9646 and ask for the Training Department.

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 info rm a tio n as of this pr int ing . Fo r th e mo st up - to- d ate pro d uc t information, please go to www.mcquay.com.

McQuay FCVC User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Nomenclature and Certification

ThinLine 3G Vertical Fan Coils

ARI Certification Agency Listed

Features and Benefits

The ThinLine™ 3G Advantage

For building owners

For specifying engineers

For contractors

Options and Accessories

Control Options

Manual 4-Position Fan Switch

Unit-Mounted, Mechanical Thermostat With 4-Position Fan Switch

Digital Thermostats

DDC Interface Board

Customer-Supplied Controls

Decorative Wall Plate Option

Fresh Air Damper Options (Manual and Motorized)

Condensate Overflow Switch Option

Tamperproof Cabinet Option

Fresh Air Intake Box Option

Rear Cabinet Extension Option

Return Air Grille

Factory Valve & Piping Packages

Leveling Legs Option

Available Packages

Control V a lve Opt ions

Unit Selection

Unit Selection

Unit size

Basic design data

Coil types

Performance Data

Two-Pipe Systems, Hot Water Heat

Four-Pipe Systems - Hot Water Preheat (1 or 2 row) or Reheat (1 row)

Four-Pipe Systems - Steam Preheat or Reheat

Electric Heat Data

Air Volume Capacity Data

Motor Electrical Data

Physical Data

Unit Data

Unit Dimensions

Decorative Wall Plate Dimensions

Fresh Air Intake Box Dimensions

Engineering Guide Specification

McQuay ThinLine 3G Fan Coil

Performance

General Construction - All Units

Cabinet

Coils

Supply Fan

Filter Section

Fresh Air Damper

Controls

V alve/Piping Packages

Other Available Options