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UNT-PRC001-EN.book Page 1 Tuesday, May 8, 2012 10:54 AM
Product Catalog
UniTrane™ Fan-Coil
Air Terminal Devices
Horizontal, Vertical, and Low Vertical, Sizes 02–12
May 2012
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Introduction
Factory-installed and
-tested controls.
It isn’t just a fan and a coil…
The Trane Company has redesigned the traditional fan-coil to lead the industry in:
• indoor air quality (IAQ) features
• easy installation and maintenance
• high quality and durability
• advanced controls
Smaller unit footprint.
Quiet operation.
Two-, three-, or four-row coils.
Factory-assembled, -installed, and -tested piping package with IAQ drain pan to collect condensate.
Removable, noncorrosive, positively-sloped drain pan that’s easy to clean.
Build in field service tool with real language LED
Easy-to-remove fan assembly.
16-gage steel construction.
Easy filter access without front panel removal.
Energy efficient electronically commutated motor (ECM)
Cleanable closed-cell insulator (non-fiberglass).
Damper allows up to 100% fresh air.
Revision History
The revision of this literature dated 08 May 2012 includes information for Tracer™ UC400 controls, coil performance updates, and revised performance table formats per new AHRI listing requirements.
Trademarks
Integrated Comfort, Rover, TOPSS, Tracer, Tracer Summit, Trane, the Trane logo, and UniTrane are trademarks of Trane in the United States and other countries. Trane is a business of Ingersoll Rand.
All trademarks referenced in this document are the trademarks of their respective owners.
Teflon is a registered trademark of E. I. du Pont de Nemours and Company or its affiliates.
© 2012 Trane All rights reserved UNT-PRC001-EN
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Table of Contents
UNT-PRC001-EN
Introduction
Features and Benefits
Model Number Descriptions
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
General Data
Model A, Vertical Concealed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Model C, Horizontal Concealed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Model E, Horizontal Recessed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Model J, Vertical Cabinet Slope Top . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Model K, Low Vertical Concealed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Model L, Low Vertical Cabinet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Model P, Compact Concealed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Model P, Compact Concealed (with Recessed Panel Option) . . . . . . . . . 17
Factory-Installed Piping Packages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Selecting the Correct Modulating Valve Size . . . . . . . . . . . . . . . . . . . . . . 23
Performance Data
Horizontal Cabinet and Vertical Cabinet . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Low Vertical Cabinet and Low Vertical Concealed . . . . . . . . . . . . . . . . . . 30
Horizontal Concealed, Compact Concealed, Horizontal Cabinet, Horizontal
Recessed and Vertical Recessed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Horizontal Cabinet and Vertical Cabinet . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Horizontal Concealed, Compact Concealed, Horizontal Cabinet, Horizontal
Recessed, and Vertical Recessed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Controls
Customer Supplied Terminal Interface (CSTI) . . . . . . . . . . . . . . . . . . . . . 41
3
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Tracer ZN520 and UC400 Additional Features . . . . . . . . . . . . . . . . . . . . . 51
Electrical Data
Dimensions and Weights
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
Vertical Concealed, Model A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
Horizontal Concealed, Model C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
Horizontal Recessed, Model E . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
Low Vertical Concealed, Model K . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
Low Vertical Cabinet, Model L . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
Compact Concealed, Model P . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
Coil Connections, Horizontal Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
Fresh Air Opening Locations, Horizontal Units Models C, D, and E . . . . 70
Fresh Air Opening Locations, Vertical Units Models A, B, and J . . . . . . 71
Fresh Air Opening Locations, Low Vertical Units Models K and L . . . . . 72
Mechanical Specifications
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
UniTrane Fan-Coil Mechanical Specifications . . . . . . . . . . . . . . . . . . . . . 75
4 UNT-PRC001-EN
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Features and Benefits
The UniTrane fan-coil meets the standards of today’s market, as well as the anticipated needs of tomorrow’s market. The tradition that company founder Reuben Trane began in the 1930s continues with the latest generation of fan-coils from The Trane Company.
The UniTrane fan-coil is the leader in these key areas:
• Energy Efficiency
• Indoor Air Quality (IAQ)
• Controls
• Flexibility
• Quality
• Serviceability
Today’s HVAC market is concerned with issues such as indoor air quality (IAQ) and CFCs that demand a change in HVAC products. In addition, renovation has overtaken new construction in the fan-coil market—demanding a design that caters to renovation issues. Trane is concerned with these issues, too. That’s why we designed the UniTrane fan-coil as an integral part of the company’s system solutions with standard IAQ-related features that fully comply with ASHRAE 62.
Energy Efficiency
Trane’s commitment to providing premium quality products has led to the exclusive use of
Electronically Commutated Motors (ECM) in all fan coil models. These brushless DC motors incorporate the latest technology for optimized energy efficiency, acoustical abatement, maintenance free and extended motor life. Each motor has a built-in microprocessor that allows for programmability, soft ramp-up, better airflow control, and serial communication.
• Trane units equipped with ECMs are significantly more efficient than the standard Permanent
Split Capacitor (PSC) motor.
• Lower operating costs on average of 50 percent (versus a PSC motor).
• The Reduced FLA feature allows units to ship with a nameplate FLA rating much lower than a typical ECM unit.
IAQ Design
• Closed-cell insulation is standard on all units to help prevent fiberglass in the airstream.
• The main and auxiliary drain pans are constructed of a noncorrosive engineered plastic (ABS and CyColac T).
• The main and auxiliary drain pans are positively sloped in every plane to assure proper drainage and help maximize protection from microbial growth.
• The drain pans are removable for cleaning.
• Easy filter access encourages frequent changing.
• The auto-economizer damper option allows free cooling and ventilation to help comply with
ASHRAE 62—and save energy and operating costs.
• UniTrane fan-coils have a blow-thru design. Low vertical units are drawthru.
Controls
• This is the industry’s first solution that is factory-mounted, -wired, and -programmed for infinite modulation of fan speed based on space loads, using the Tracer UC400. Auto Fan Speed control with the Tracer ZN520 ramps the fan speed up and down to meet space loads.
• All controls are factory-mounted and tested to minimize field setup and improve reliability.
• Controls are wired with a 24 Vac transformer to keep only a single source power connection requirement to the unit.
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Features and Benefits
6
• All wall-mounted zone sensors require only low voltage control wiring from the device to the unit control box. (No line voltage.)
• The controller automatically determines the unit’s correct operating mode (heat/cool) by utilizing a proportional/integral (PI) control algorithm to maintain the space temperature at the active setpoint, allowing total comfort control.
• Entering water temperature sampling eliminates the need for inefficient bleedlines to sense automatic changeover on two-pipe changeover units.
• The random start-up feature helps reduce electrical demand peaks by randomly staggering multiple units at start-up.
• Occupied/unoccupied operation allows the controller to utilize unoccupied temperature setpoints for energy savings.
• Warm-up and cool-down energy features are standard with Trane controls.
• Continuous fan or fan cycling is available with Tracer ZN010 or ZN510.
• Monitor unit operation using Tracer TU building management system with Tracer ZN510 or
ZN520 and UC400.
• To customize unit control, Tracer TU or Rover™ software will allow field modification of
Tracer ZN510 and ZN520 default settings. Tracer ZN010 uses Rover to field modify default settings. UC400 uses Tracer TU.
• Maximize fan-coil system efficiency with free cooling economizers and modulating valves on units with Tracer ZN520 and UC400.
Flexibility
• Two, three, and four-row coils allow greater design flexibility in two and four-pipe systems.
• One-row steam or hot water reheat coils for dehumidification on units with ZN520 controls.
• Fan motors are available for either high static (0.4-inch external static pressure) or free discharge applications.
• Piping is factory assembled, mounted and tested. Units are also available without piping.
Reheat coil piping is available on 2-pipe units with hot water reheat coils and either a fan speed switch or Tracer ZN520 and UC400.
• Factory piping options include interconnecting piping, control valves, and end valves. Deluxe piping also has unions and a strainer.
• Control options range from a simple fan speed switch to a DDC controller that can tie into a
Tracer Summit building automation system.
• An 8-inch extended end pocket is an available option on the piping end of cabinet style units.
• Slope-top vertical cabinet units are also available for school and dormitory applications to prevent items from being placed on top of the units.
Quality
• Coils and piping packages are air and leak-tested before mounting on the fan-coil.
• Coil piping connections are also air and leak-tested after mounting on the unit.
• All control end devices and moving components (fans and motors) are computer-tested after units are complete.
Serviceability
• Touch-safe control box.
• Integrated user interface with real language LED display.
• Built-in tachometer.
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Features and Benefits
• Filters are easily removable and changed without removing the front panel on vertical cabinet units.
• Motors are easy to disconnect from the fan board, allowing easy service.
• The main and auxiliary drain pans are easily removable and wipe clean with a wet cloth.
• The manual output test function is an invaluable troubleshooting tool. By simply pressing the test button on the Tracer ZN510, ZN520, or ZN010; service personnel can manually exercise outputs in a pre-defined sequence.
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8
Model Number Descriptions
UniTrane Fan-Coil
Following is a complete description of the fan-coil model number. Each digit in the model number has a corresponding code that identifies specific unit options.
Note: Not all options are available on all cabinet styles. Contact your local Trane sales representative for more information.
Digits 1, 2 — Unit Type
FC = Fan-Coil
Digit 3 — Cabinet Type
A = Vertical Concealed
B = Vertical Cabinet
C = Horizontal Concealed
D = Horizontal Cabinet
E = Horizontal Recessed
H = Vertical Recessed
J = Vertical Cabinet Slope Top
P = Compact Concealed
Digit 4 — Development
Sequence “B”
Digits 5, 6, 7 — Unit Size
020
030
120
040
060
080
100
Digit 8 — Unit Voltage
1 = 115/60/1
2 = 208/60/1
3 = 277/60/1
4 = 230/60/1
9 = 220/50/1
Digit 9 — Piping System/
Placement
A = No piping, RH, No Auxiliary Drain
Pan
B = No piping, LH, No Auxiliary Drain
Pan
C = No piping, RH, with Auxiliary
Drain Pan
D = No piping, LH, with Auxiliary
Drain Pan
E = No piping, RH, No Auxiliary Drain
Pan, Extended End Pocket
F = No piping, LH, No Auxiliary Drain
Pan, Extended End Pocket
G = No piping, RH, with Auxiliary
Drain Pan, Extended End Pocket
H = No piping, LH, with Auxiliary
Drain Pan, Extended End Pocket
J = With piping package, RH
K = With piping package, LH
L = With piping package, RH,
Extended End Pocket
M = With piping package, LH,
Extended End Pocket
Digits 10, 11 — Design Sequence
Digit 12 — Inlets
A = Front Toe Space
B = Front Bar Grille
C = Front Stamped Louver
D = Bottom Stamped Louver
E = Bottom Toe Space
F = Back Duct Collar
G = Back Open Return
H = Back Stamped Louver
K = Exposed fan (Model P only)
L = Bottom filter (Model P only)
Digit 13 — Fresh Air Damper
0 = None
A = Manual, Bottom Opening
B = Manual, Back Opening
C = Manual, Top Opening
D = Auto, 2-Position, Bottom Opening
E = Auto, 2-Position, Back Opening
F = Auto, 2-Position, Top Opening
G = Auto, Economizer, Bottom
Opening
H = Auto, Economizer, Back Opening
J = Auto, Economizer, Top Opening
K = No Damper, Bottom Opening
L = No Damper, Back Opening
M = No Damper, Top Opening
Digit 14 — Outlets
A = Front Duct Collar
B = Front Bar Grille
C = Front Stamped Louver
D = Front Quad Grille
G = Top Quad Grille
H = Top Bar Grille
J = Top Duct Collar
Digit 15 — Color
0 = No Paint (Concealed Units Only)
1 = Deluxe Beige
2 = Soft Dove
3 = Cameo White
4 = Driftwood Grey
5 = Stone Grey
6 = Rose Mauve
Digit 16 — Tamperproof Locks/
Leveling Feet
0 = None
B = Keylock Access Door
C = Keylock Panel and Access Door
D = Leveling Feet
F = Keylock Access Door with
Leveling Feet
G = Keylock Panel and Access Door with Leveling Feet
Digit 17 — Motor
A = Free Discharge ECM
B = High Static ECM
Digit 18 — Coil
A = 2-Row Cooling/Heating 1
B =
C =
D = 2-Row Cooling/1-Row Heating
E = 2-Row Cooling/2-Row Heating
F = 3-Row Cooling/1-Row Heating
G = 2-Row Cooling Only
H = 3-Row Cooling Only
J = 4-Row Cooling Only
K =
Electric Heat
L =
Electric Heat
M =
Electric Heat
P =
1-Row Heating
Q =
2-Row Heating
R =
1-Row Heating
X = 2-Row Cooling Only, Electric Heat
Y = 3-Row Cooling Only, Electric Heat
Z = 4-Row Cooling Only, Electric Heat
Digit 19 — Drain Pan Material
3 = Polymer Drain Pan
4 = Stainless Steel Main Drain Pan
Digit 20 — Coil Air Vent
A = Automatic Air Vent
M = Manual Air Vent
1
Designates coils provided with a changeover sensor.
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Model Number Descriptions
Digits 21, 22, 23 — Electric Heat kW — ( ) = 208V Derate
000 = No Electric Heat
010 = 1.0 kW (0.75 kW)
015 = 1.5 kW (1.1 kW)
020 = 2.0 kW (1.5 kW)
025 = 2.5 kW (1.9 kW)
030 = 3.0 kW (2.3 kW)
040 = 4.0 kW (3.0 kW)
050 = 5.0 kW (3.8 kW)
060 = 6.0 kW (4.5 kW)
070 = 7.0 kW (5.3 kW)
080 = 8.0 kW (6.0 kW)
100 = 10.0 kW
Digit 24 — Reheat Coil
0 = None
A = Steam Coil
B = Hot Water Coil
D = High Capacity Hot Water Coil
Digit 25 — Disconnect Switch
0 = None
D = Disconnect Switch
Digit 26 — Filter
0 = None
1 = 1” Throwaway Filter
2 = 1” Throwaway MERV 8 Filter
3 = 1” Throwaway, 1 Extra
4 = 1” Throwaway MERV 8, 1 Extra
5 = 1” Throwaway, 2 Extras
6 = 1” Throwaway MERV 8, 2 Extras
7 = 1” Throwaway, 3 Extras
8 = 1” Throwaway MERV 8, 3 Extras
A = 1” Throwaway MERV 13 Filter
B = 1” Throwaway MERV 13, 1 Extra
C = 1” Throwaway MERV 13, 2 Extras
D = 1” Throwaway MERV 13, 3 Extras
Digit 27 — Main Control Valve
0 = None
A = 2-Way, 2-Position, NO (30 psig)
B = 3-Way, 2-Position, NO (28 psig)
C = 2-Way, 2-Position, NC (30 psig)
D = 3-Way, 2-Position, NC (20 psig)
E = 2-Way, 2-Position, NO (50 psig)
F = 3-Way, 2-Position, NO (28 psig)
G = 2-Way, 2-Position, NC (50 psig)
H = 3-Way, 2-Position, NC (28 psig)
J = 2-Way, Mod., 0.6 Cv (60 psig)
K = 3-Way, Mod., 0.6 Cv (60 psig)
L = 2-Way, Mod., 1.1 Cv (60 psig)
M = 3-Way, Mod., 1.1 Cv (60 psig)
N = 2-Way, Mod., 2.3 Cv (60 psig)
P = 3-Way, Mod., 2.7 Cv (60 psig)
Q = 2-Way, Mod., 3.3Cv (60 psig)
R = 3-Way, Mod., 3.8 Cv (60 psig)
X = Field-supplied, NO
Y = Field-supplied, NC
Z = Field-supplied 3-Wire Modulating
1 = Field supplied analog valve
Digit 28 — Auxiliary Control
Valve
0 = None
A = 2-Way, 2-Position, NO (30 psig)
B = 3-Way, 2-Position, NC (28 psig)
C = 2-Way, 2-Position, NC (30 psig)
D = 3-Way, 2-Position, NC (20 psig)
E = 2-Way, 2-Position, NO (50 psig)
F = 3-Way, 2-Position, NO (28 psig)
G = 2-Way, 2-Position, NC (50 psig)
H = 3-Way, 2-Position, NC (28 psig)
J = 2-Way, Mod., 0.6 Cv (60 psig)
K = 3-Way, Mod., 0.6 Cv (60 psig)
L = 2-Way, Mod., 1.1 Cv (60 psig)
M = 3-Way, Mod., 1.1 Cv (60 psig)
N = 2-Way, Mod., 2.3 Cv (60 psig)
P = 3-Way, Mod., 2.7 Cv (60 psig)
Q = 2-Way, Mod., 3.3Cv (60 psig)
R = 3-Way, Mod., 3.8 Cv (60 psig)
X = Field-supplied, NO
Y = Field-supplied, NC
Z = Field-supplied 3-Wire Modulating
1 = Field supplied analog valve
Digit 29 — Piping Packages
0 = None
A = Basic Ball Valve Supply and
Return
B = Basic Ball Valve Supply/Manual
Circuit Setter
C = Basic Ball Valve Supply and
Return with Auto Circuit Setter
D = Deluxe Ball Valve Supply and
Return
E = Deluxe Ball Valve Supply/Manual
Circuit Setter
F = Deluxe Ball Valve Supply and
Return with Auto Circuit Setter
Digit 30 — Control Type
A = Fan Mode Switch
E = Tracer ZN010
F = Tracer ZN510
G = Tracer ZN520
H = Customer Supplied Terminal
Interface (CSTI)
J = Tracer UC400, Single Zone VAV
Digit 31 — Control Option
D = Unit-Mounted Fan Mode Switch
K = Wall-Mounted Fan Mode Switch
V = Unit-Mounted Fan Speed Switch w/Setpoint Dial Zone Sensor
W = Wall-Mounted Fan Speed Switch w/Setpoint Dial Zone Sensor
X = Unit-Mounted Fan Speed Switch w/Wall-Mounted Setpoint Dial
Zone Sensor
Y = Unit-Mounted Fan Speed Switch
& Wall-Mounted Setpoint Dial w/Comm.
Z = Unit-Mounted Fan Speed Switch,
On/Cancel, Setpoint Dial w/ Comm.
1 = Wall-Mounted On/Cancel w/ Comm.
2 = Wall-Mounted Fan Speed Switch,
Setpoint Dial, On/Cancel w/ Comm.
0 = Without Control Option
3 = Unit-Mounted Low Voltage Fan
Speed Switch (Off /Hi /Med /Low)
4 = Wall-Mounted Digital Zone
Sensor (OALMH, Setpoint,
On/Cancel, Comm Jack)
5 = Wall-Mounted Digital Zone
Sensor (On/Cancel, Comm Jack)
6 = Wireless Zone Sensor
7 = Wireless Display Sensor, Unit-
Mounted Receiver
Digit 32 — IAQ Options
0 = Without IAQ Options
1 = Dehumidification
4 = Dehumidification w/ Sensor
Digit 33 —FLA Motor Option
0 = Standard FLA ECM Mode
A = Reduced FLA ECM Mode
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Model Number Descriptions
Digit 34
0 = None
Digit 35 — Control Function #3
0 = None
2 = Condensate Overflow Detection
Digit 36 — Control Function #4
0 = None
2 = Low Temperature Detection
Digits 37, 38 — Future Control
Functions
Digit 39 — Projection Panels and
Falsebacks
0 = None
A = 5/8” Standard Recessed Panel
(Vertical Recessed Units Only)
B = 2” Projection Panel
C = 2.5” Projection Panel
D = 3” Projection Panel
E = 3.5” Projection Panel
F = 4” Projection Panel
G = 4.5” Projection Panel
H = 5” Projection Panel
J = 5.5” Projection Panel
K = 6” Projection Panel
L = 2”Falseback
M = 3” Falseback
N = 4” Falseback
P = 5” Falseback
Q = 6” Falseback
R = 7” Falseback
T = 8” Falseback
Digit 40 — Main Autoflow Gpm
0 = None
A = 0.5
B = 0.75
C = 1.0
D = 1.5
E = 2.0
F = 2.5
G = 3.0
H = 3.5
J = 4.0
K = 4.5
L = 5.0
M = 6.0
N = 7.0
P = 8.0
Digit 41 — Auxiliary Autoflow
Gpm
0 = None
A = 0.5
B = 0.75
C = 1.0
D = 1.5
E = 2.0
F = 2.5
G = 3.0
H = 3.5
J = 4.0
K = 4.5
L = 5.0
M = 6.0
N = 7.0
P = 8.0
Digit 42 — Subbases
0 = None
A = 2” Subbase
B = 3” Subbase
C = 4” Subbase
D = 5” Subbase
E = 6” Subbase
F = 7” Subbase
Digit 43 — Recessed Flange
0 = None
A = Recessed Flange
Digit 44 — Wall Boxes
0 = None
A = Anodized Wall Box
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General Data
Model A, Vertical Concealed
Model B, Vertical Cabinet
Outlet
Top Duct Collar
Inlet
Front Toe Space
Fresh Air
Bottom or Back
Outlet
Top Quad Grille, Top Bar Grille
Inlet
Front Toe Space,
Front Bar Grille
Fresh Air
Bottom or Back
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General Data
Unit Configurations
Model C, Horizontal Concealed
Outlet
Front Duct Collar
Inlet
Back Duct Collar
Fresh Air
N/A
Fresh Air
Top or Back
Outlet
Front Duct Collar
Outlet
Front Duct Collar
Fresh Air
N/A
Inlet
Bottom Toe Space
Inlet
Open Return
No Filter
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Model D, Horizontal Cabinet
General Data
Unit Configurations
Fresh Air
Top or Back Fresh Air
N/A
Outlet
Front Quad
Grille, Front Bar Grille
Outlet
Front Duct Collar
Inlet
Bottom Stamped
Louver
Fresh Air
Top or Back Fresh Air
N/A
Outlet
Front Duct Collar
Outlet
Front Quad
Grille, Front Bar Grille
Outlet
Front Quad
Grille, Front Bar Grille
Fresh Air
N/A
Inlet
Bottom Stamped
Louver
Inlet
Back Stamped
Louver
Outlet
Front Duct Collar
Fresh Air
N/A
Inlet
Back Stamped
Louver
Inlet
Back Duct
Collar
Inlet
Back Duct
Collar
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General Data
Unit Configurations
Model E, Horizontal Recessed
Model H, Vertical Recessed
14
Fresh Air
Top or Back
Outlet
Front Duct Collar
Outlet
Front Duct Collar
Fresh Air
N/A
Inlet
Bottom Stamped
Louver
Inlet
Back Duct
Collar
Outlet
Top Duct Collar
Inlet
Front Stamped Louver
Outlet
Front Stamped
Louver
Fresh Air
Bottom or Back
Inlet
Front Stamped Louver
Fresh Air
Bottom or Back
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Model J, Vertical Cabinet Slope Top
General Data
Unit Configurations
Outlet
Top Quad Grille, Top Bar Grille
Model K, Low Vertical Concealed
Model L, Low Vertical Cabinet
Inlet
Front Toe Space,
Front Bar Grille
Fresh Air
Bottom or Back
Inlet
Front Toe Space
Outlet
Top Duct Collar
Fresh Air
Back
Inlet
Front Bar Grille
Outlet
Top Quad Grille, Top Bar Grille
Fresh Air
Back
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General Data
Unit Configurations
Model P, Compact Concealed
Outlet
Front Duct Collar
Fresh Air
N/A
Fresh Air
N/A
Inlet
Back Duct Collar
Outlet
Front Duct Collar
Outlet
Front Duct Collar
Fresh Air
N/A
Inlet, Bottom Filter
(Bottom Toe Space)
Inlet, Exposed
Fan
(Open Return
No Filter)
16 UNT-PRC001-EN
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Model P, Compact Concealed (with Recessed Panel Option)
General Data
Unit Configurations
Fresh Air
N/A
Outlet
Front Duct Collar
Outlet
Front Duct Collar
Outlet
Front Duct Collar
Inlet, Bottom Filter
(Bottom Stamped
Louver)
Fresh Air
N/A
Inlet
(Back Duct
Collar)
Fresh Air
N/A
Inlet,
Exposed Fan
(Open Return
No Filter)
UNT-PRC001-EN 17
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General Data
Table 1.
UniTrane Fan-Coil general data
Unit Size
Coil Data
Face Area — ft 2
LxDxH — in.
02 03 04
0.8 0.8 1.1
06 08
1.6 2.1
10
3.2
12
3.2
2-Row
3-Row
4-Row
Volume — gal
1-Row
2-Row
3-Row
4-Row
15 x 1.7 x 8
15 x 2.6 x 8
15 x 3.5 x 8
0.06
0.12
0.18
0.24
Fins/ft
2-Row 144 144
3-Row
4-Row
144 144
144 144
Reheat Coil Data (1-Row), Standard or High-Capacity (a)
Hot Water or Steam
Face Area — ft 2
L x D x H — in.
0.6
15 x 1.5 x 6
0.6
15 x 1.5 x 6
0.12
48
Volume — gal
Standard Capacity
0.12
High-Capacity
Fins/ft
Fan/Motor Data
Fan Quantity
Size — Dia” x Width”
Size — Dia” x Width”
Motor Quantity
1
6.31 x 4
1
15 x 1.7 x 8
15 x 2.6 x 8
15 x 3.5 x 8
0.06
0.12
0.18
0.24
1
6.31 x 6.5
1
20 x 1.7 x 8
20 x 2.6 x 8
20 x 3.5 x 8
0.08 0.11
0.15
0.23
0.30
144
0.8
20 x 1.5 x 6
0.15
48
144
1
6.31 x 7.5
1
29.5 x 1.7 x 8 38 x 1.7 x 8
29.5 x 2.6 x 8 38 x 2.6 x 8
29.5 x 3.5 x 8 38 x 3.5 x 8
0.22
0.33
0.44
144 144 144 144
144 144 144 144 144
144 144
1.2
0.22
48
144 144 144
144 144
2
6.31 x 6.5
1
0.14
0.28
0.42
0.56
1.6
29.5 x 1.5 x 6 38 x 1.5 x 6
0.28
48
2
6.31 x 7.5
1
57 x 1.7 x 8
57 x 2.6 x 8
57 x 3.5 x 8
0.21
0.42
0.62
0.83
2.4
57 x 1.5 x 6
0.42
48
144
57 x 1.7 x 8
57 x 2.6 x 8
57 x 3.5 x 8
0.21
0.42
0.62
0.83
2.4
57 x 1.5 x 6
0.42
48
144
3 3
(1) 6.31 x 7.5 6.31 x 7.5
(2) 6.31 x 6.5
2 2
Filter Data
1” (cm) TA and Pl. Media
Quantity
Size — in.
1 1 1 1 1 1 1
8-7/8 x 19-1/8 8-7/8 x 19-1/8 8-7/8 x 24-1/8 8-7/8 x 33-5/8 8-7/8 x 42-1/8 8-7/8 x 61-1/8 8-7/8 x 61-1/8
1” Fresh Air Filter (only on cabinet styles D, E, and H with bottom return and fresh air opening)
Quantity
Size — in.
1 1 1 1 1 1 1
5-1/2 x 19-1/8 5-1/2 x 19-1/8 5-1/2 x 24-1/8 5-1/2 x 33-5/8 5-/2 x 42-1/8 5-1/2 x 61-1/8 5-1/2 x 61-1/8
(a) Standard and high-capacity reheat coils share the same component data except that standard capacity reheat coils have 48 fins/ft while high-capacity reheat coils have 144 fins/ft.
18 UNT-PRC001-EN
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General Data
Table 2.
Low vertical fan-coil general data
Unit Size
Coil Data
Face Area—ft 2
L x D x H—in.
2-Row
3-Row
Volume—gal
1-Row (Heat)
2-Row
3-Row
Fins/ft
2-Row
3-Row
Fan/Motor Data
Fan Quantity
Size—Dia” x Width”
Motor Quantity
Filter Data
1” TA
Quantity
Size—in.
03
1.1
20 x 1.7 x 8
20 x 2.6 x 8
0.08
0.15
0.23
144
144
1
5 x 23
1
1
8-7/8 x 24-1/8
04 06
1.6 2.1
29.5 x 1.7 x 8
29.5 x 2.6 x 8
38 x 1.7 x 8
38 x 2.6 x 8
0.11
0.22
0.33
0.14
0.28
0.42
144 144
144 144
1
5 x 32
1
1
5 x 41
1
1
8-7/8 x 33-5/8
1
8-7/8 x 42-1/8
Table 3.
Fan-coil air flow (cfm)
FC
02
03
04
06
08
10
12
Coil
3-row
4-row
2-row
3-row
4-row
2-row
3-row
4-row
2-row
3-row
4-row
2-row
3-row
4-row
2-row
3-row
4-row
2-row
3-row
4-row
2-row
FD
0.05
604
557
790
724
676
1015
1052
988
1105
1074
993
246
242
222
313
309
276
381
365
340
609
External Static Pressure (ESP)
High Static
0.1
0.2
0.3
880
812
1014
992
930
1284
1456
1366
1424
1514
1421
344
352
326
410
391
360
446
544
506
757
824
760
950
927
870
1199
1360
1276
1330
1419
1330
314
319
295
380
358
330
410
506
470
700
766
706
885
861
808
1113
1262
1183
1234
1320
1238
283
284
263
350
324
299
373
467
434
642
0.4
707
652
819
794
745
1024
1162
1089
1134
1219
1144
251
249
230
319
290
267
336
427
397
582
UNT-PRC001-EN 19
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General Data
Piping Packages
Factory-Installed Piping Packages
UniTrane fan-coils have standard piping packages available as a factory built and installed option.
Piping package options are also available for the hot water reheat coil on two-pipe units equipped with either a fan speed switch or Tracer ZN520 and UC400 controller. Factory built assures all piping packages are fully tested under water for leaks and are built within strict tolerances. Factoryinstalled means that chilled and hot water pipes are the only field connections required. The installer doesn’t have to sweat connect piping packages onto coil connections in a tight end pocket.
Field connections are brought to a point near the exterior of the unit for easy access. All piping and components are located to allow condensate to drain into the auxiliary drain pan. Insulation of the factory piping package is not required. However, all field connections should be insulated to prevent condensation from missing the auxiliary drain pan.
Figure 1.
Factory-installed and -tested piping package (two-pipe deluxe package with manual circuit setter, shown on a horizontal concealed unit)
20
Piping Package Components
UniTrane piping packages consist of a variety of components for each application. The following section provides a detailed description of each of the piping components. Following this section are additional illustrations and specifications.
Piping System/Placement
Factory piping systems are available for either two or four-pipe systems with right or left hand connections. Four-pipe systems have both the heating and cooling connections on the same side of the unit. A simple coil connection (a unit without a piping package) is also available in either a right or left hand configuration for those applications requiring field piping.
Interconnecting Piping
Interconnecting piping refers to the copper piping which is attached to the coil connections and to which all other components (control valves, end valves, etc.) are attached. Piping is 1/2” nominal
OD copper. Two-pipe piping extends near the unit exterior to one inlet and one outlet connection.
Four-pipe units have two sets of piping that extend near the unit exterior — one inlet and one outlet each for both chilled and hot water. A label clearly identifies chilled and hot water connection points on every unit.
Deluxe or Basic Piping Package
The basic piping package includes only the main components of the piping package: interconnecting piping, control valve option, and end valves.
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UNT-PRC001-EN
General Data
Piping Packages
The deluxe piping package also includes a strainer on the entering water pipe and unions at the coil connections along with the basic components. The strainer body is cast brass construction, with a stainless steel mesh strainer that is easily removed for cleaning. The unions are forged brass construction and close with a minimum amount of effort.
End Valves
Each piping package includes a ball valve for the entering water pipe and one of the following end valves on the leaving water pipe: ball valve, manual circuit setter, or an auto circuit setter. These valves serve as the field connection points on all UniTrane piping packages.
Ball Valves.
Ball valves, also known as stop or end valves, allow the unit to be cut off for service purposes. These valves have a two-inch handle that rotates 90 percent to a fully open position. The valve body is cast brass, and the ball is polished brass with a Teflon ® seat. Ball valves are available as end valves on both the entering and leaving water pipes.
Manual Circuit Setter
In lieu of a ball valve on the leaving water pipe, a manual circuit setter, also known as a manual flow control valve, acts as both a flow setting device and a stop valve. This valve allows water flow through the fan-coil unit to be set quickly and accurately.
The manual circuit setter includes Schrader ports in the valve body. These ports are used to measure the pressure drop across the valve. This pressure drop can be compared to factory supplied curves that relate the pressure drop to a specific flow rate. This valve also has a memory stop so the correct setting can be found quickly.
Auto Circuit Setter
An auto circuit setter is an automatic flow control device available on the leaving water pipe. The auto 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. The auto circuit setter is available on the leaving water pipe with a ball valve. The auto circuit setter also includes two P/Ts plugs in the valve body to allow measurement of the pressure drop temperature through the valve.
Control Valves
Piping packages are available with or without control valves. All control valve options are factory mounted and wired to the UniTrane fan-coil controls.
Two-Way/Two-Position Valves
These valves will either fully open or close in response to a 24 Vac signal from the Trane controller.
Main control valves are direct-acting valves, while the auxiliary valves are reverse-acting. All control valves are factory mounted in the leaving water pipe downstream of the coil. 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.
Three-Way/Two-Position Valves
These valves will either allow full water flow through the coil or divert the flow through a bypass line. The valves respond to a 24 Vac signal from the Trane controller. Main control valves are direct acting valves, while the auxiliary valves are reverse-acting. All three-way valve packages include a balance fitting in the bypass line to allow flow balancing in the bypass position. Three-way valves are factory mounted in the leaving water pipe downstream of the coil. 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 Trane controller. All modulating valves are three-wire floating point equal percentage valves. The modulating valves are factory mounted in the leaving water pipe downstream of the coil.
21
UNT-PRC001-EN.book Page 22 Tuesday, May 8, 2012 10:54 AM
General Data
Piping Packages
Three-Way Modulating Valves
These valves modulate the water flow through the coil in response to a signal. 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 leaving water pipe downstream of the coil.
Auto Flow Valve (C)
22 UNT-PRC001-EN
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General Data
Selecting the Correct Modulating Valve Size
Modulating valves are available in any of four port sizes. The port sizes relate to a Cv of 0.6, 1.1, 2.3,
2.7, 3.3, and 3.8, which is the coefficient of flow. The coefficient of flow is defined as the volume of water flow through a control valve in the fully open position with a 1 psig differential across the valve. It is calculated using the following formula:
Cv = Q/Square root ΔP where:
Cv = flow coefficient
Q = flow rate (Gpm)
ΔP = pressure drop across the valve or coil (psig).
For good control, the valve Cv should be approximately equal to the Cv of the water coil.
Modulating Valve Selection Example
Assume a size 06 fan-coil is selected to operate at the following conditions:
Vertical Cabinet Fan-Coil
Entering water temperature = 45°F
Leaving water temperature = 55°F
EAT conditions = 80/67.
The coil is selected as a four-row coil.
Select the best modulating valve size for this unit.
1.
Find the
ΔP across the water coil. Refer to the AHRI performance table to determine the ΔP across the water coil (or use TOPSS™ selection program). The water pressure drop is found to be 7.0’ of water at a flow rate of 3.74 gpm. This converts to a pressure drop of 3.03 psig (1.0 feet of water = 0.4328 psig.)
2. Calculate the Cv of the water coil.
Cv = Gpm/Square root ΔP
Cv = 3.74/Square root 3.03
Cv = 2.15
Therefore, the valve with the Cv of 2.7 should be selected since it has the Cv which is closest to the Cv of the water coil. The following tables illustrate possible valve selections at AHRI conditions for horizontal concealed units with a high static motor and vertical cabinet units with a free discharge motor.
Note: Do not use these tables for any applications other than vertical cabinet or horizontal concealed units at AHRI conditions.
UNT-PRC001-EN 23
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General Data
Table 4.
Modulating valve selections for horizontal concealed units
Unit Size
02
03
04
06
08
10
12
Coil
2-Row
3-Row
4-Row
2-Row
3-Row
4-Row
2-Row
3-Row
4-Row
2-Row
3-Row
4-Row
2-Row
3-Row
4-Row
2-Row
3-Row
4-Row
2-Row
3-Row
4-Row
Horizontal Concealed (High Static Motor)
Coil
Gpm WPD
3.90
5.13
5.68
5.23
7.14
7.63
6.35
7.98
9.47
1.29
8.8
1.80 23.9
1.84 6.1
1.58
14.1
1.86
2.26
1.90
2.94
3.35
3.32
4.24
4.99
5.4
9.7
4.6
13.9
22.3
15.3
7.5
11.9
5.7
11.8
16.9
10.8
24.2
32.8
16.6
18.5
25.2
Coil
Cv
1.08
1.29
2.35
2.20
2.48
2.27
2.10
2.42
0.66
0.56
1.13
0.64
1.22
1.10
1.35
1.20
2.21
2.03
2.37
2.82
2.87
Table 5.
Modulating valve selections for vertical cabinet units
Unit Size
02
03
04
06
08
10
12
Coil
2-Row
3-Row
4-Row
2-Row
3-Row
4-Row
2-Row
3-Row
4-Row
2-Row
3-Row
4-Row
2-Row
3-Row
4-Row
2-Row
3-Row
4-Row
2-Row
3-Row
4-Row
Vertical Cabinet (Free Discharge Motor)
Coil
Gpm WPD
2.86
3.19
3.74
3.14
4.01
4.44
4.39
5.60
1.04
1.40
1.40
1.32
1.57
1.88
1.68
2.25
2.54
5.88
5.28
6.14
7.23
Coil
Cv
11.7
4.4
7.0
3.8
7.5
10.8
7.8
15.4
6.1
0.64
15.4 0.54
3.7
10.3
1.11
0.63
4.0
7.0
3.7
8.6
13.6
1.19
1.08
1.33
1.17
1.05
20.4
11.8
11.2
15.4
1.98
2.34
2.79
2.80
1.27
2.31
2.15
2.45
2.23
2.05
2.39
2.17
Valve
Cv
1.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
0.7
0.7
1.5
0.7
1.5
0.7
1.5
1.5
0.7
1.5
2.5
2.5
2.5
Valve
Cv
0.7
1.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
0.7
0.7
1.5
0.7
1.5
1.5
1.5
1.5
24 UNT-PRC001-EN
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Performance Data
UniTrane fan-coil performance data is submitted to AHRI with units grouped based on performance. Unit performance is impacted by the unit model and the airflow inlet and outlet configuration. Below is a table which summarizes the performance groups.
Table 6.
Fan-Coil performance groupings
UNIT TYPE
Horizontal Concealed
Compact Concealed
Horizontal Recessed
Vertical Recessed
Vertical Concealed
Horizontal Cabinet
Vertical Cabinet
Vertical Slope Top
Low Vertical Cabinet
Low Vertical Concealed
Horizontal Concealed
Compact Concealed
Horizontal Recessed
Vertical Recessed
Horizontal Cabinet
Vertical Concealed
Motor Type
Free Discharge
Free Discharge
Free Discharge
Free Discharge
Free Discharge
Free Discharge
Free Discharge
Free Discharge
Free Discharge
Free Discharge
High Static
High Static
High Static
High Static
High Static
High Static
Filter
NO
YES
YES
NO
NO
NO
NO
NO
NO
NO
NO
YES
YES
NO
NO
NO
External
Static
0.05
0.00
0.00
0.05
0.20
0.20
0.20
0.05
0.05
0.05
0.05
0.00
0.00
0.20
0.20
0.20
Performance Tables
,
,
,
,
,
,
UNT-PRC001-EN 25
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Performance Data
Main Coil
Horizontal Concealed, Compact Concealed, Horizontal Recessed, and Vertical Recessed
AHRI cooling performance is based on 80/67°F entering air temperature, 45°F entering chilled water temperature with a 10°F
ΔT.
Heating performance is based on 70°F entering air temperature, 180°F entering hot water temperature with a 30°F
ΔT.
All performance measured on high speed tap, 115 V, 0.05 ESP, without filter. Free discharge EC motor. See
Table 6, p. 25 for performance groupings.
Table 7.
2-pipe performance—free discharge EC motor
COOLING
SIZE
020
030
040
060
080
100
120
3HC
4HC
2HC
3HC
4HC
2HC
3HC
4HC
COIL
2HC
3HC
4HC
2HC
3HC
4HC
2HC
2HC
3HC
4HC
2HC
3HC
4HC
365
340
609
604
557
790
724
676
Airflow
(cfm)
246
242
222
313
309
276
381
1015
1052
988
1105
1074
993
Total
Capacity
(MBh)
5.93
6.79
8.15
6.71
7.96
9.51
8.47
11.36
12.76
14.73
16.49
19.16
16.11
20.50
22.59
25.90
31.14
36.48
26.94
31.39
36.46
Sensible
Capacity
4.38
5.01
5.55
5.07
5.98
6.56
6.76
8.03
8.52
11.13
12.37
13.20
13.12
14.61
15.32
19.29
22.21
24.00
20.19
22.40
23.99
Flow Rate
(gpm)
1.2
1.4
1.7
1.4
1.6
1.9
1.7
2.3
2.6
3.0
3.3
3.9
3.3
4.2
4.6
5.3
6.3
7.4
5.5
6.4
7.4
WPD
(ft H20)
8.01
2.87
5.03
9.90
3.81
6.59
3.55
8.21
12.80
11.56
4.43
6.90
3.83
7.41
10.55
10.84
11.09
14.94
11.69
11.29
14.96
Total
Capacity
(MBh)
16.67
20.14
21.47
16.62
24.16
25.69
23.99
30.03
32.46
38.28
47.33
51.53
48.08
58.69
69.94
66.92
85.99
94.57
70.87
87.33
94.96
HEATING
Q/ITD
0.152
0.183
0.195
Flow
Rate
(gpm)
1.1
1.3
1.4
0.178
0.220
0.234
0.218
1.3
1.6
1.7
1.6
0.273
0.295
0.348
0.430
0.468
0.437
0.534
0.581
0.608
0.782
0.860
0.644
0.794
0.863
4.5
5.7
6.3
4.7
5.8
6.3
2.0
2.2
2.6
3.2
3.4
3.2
3.9
4.3
WPD
(ft H20)
5.36
2.26
3.18
7.15
3.15
4.39
2.61
5.29
7.63
7.34
3.60
4.88
3.35
5.89
8.08
7.22
8.81
10.19
8.05
9.08
10.27
Motor
Power
(W)
37
37
37
58
58
79
79
39
39
39
58
79
122
122
122
145
145
145
160
160
160
Table 8.
4-pipe performance—free discharge EC motor
SIZE
020
COIL
2C/1H
Airflow
(cfm)
242
Total
Capacity
(MBh)
5.82
COOLING
Sensible
Capacity
(MBh)
4.28
Flow Rate
(gpm)
1.2
WPD
(ft H20)
7.75
Total
Capacity
(MBh)
9.37
HEATING
Q/ITD
0.085
Flow Rate
(gpm)
0.6
WPD
(ft H20)
0.95
Motor
Power
(W)
37
37
030
2C/2H
3C/1H
2C/1H
2C/2H
222
222
309
276
5.54
6.42
6.66
6.33
4.05
4.72
5.03
4.72
1.1
1.3
1.4
1.3
7.13
2.61
9.79
8.97
15.47
8.86
10.85
18.06
0.141
0.081
0.099
0.164
1.0
0.6
0.7
1.2
4.70
0.86
1.23
6.18
37
39
39
39
040
3C/1H
2C/1H
2C/2H
3C/1H
276
365
340
340
7.47
8.25
7.89
10.90
5.57
6.56
6.24
7.66
1.5
1.7
1.6
2.2
3.40
3.39
3.13
7.63
10.10
13.88
22.20
13.27
0.092
0.126
0.202
0.121
0.7
0.9
1.5
0.9
1.10
2.25
2.26
2.08
58
58
58
79 060
080
2C/1H
2C/2H
3C/1H
2C/1H
604
557
557
724
14.65
14.03
15.70
15.25
11.05
10.51
11.72
12.35
3.0
2.9
3.2
3.1
11.45
10.62
4.05
3.47
22.51
36.12
21.46
28.15
0.205
0.328
0.195
0.256
1.5
2.4
1.4
1.9
6.82
6.60
6.27
12.21
79
79
122
122
100
2C/2H
3C/1H
2C/1H
2C/2H
676
676
1052
988
14.65
19.79
26.31
25.41
11.82
14.05
19.64
18.86
3.0
4.0
5.3
5.2
3.22
6.95
11.15
10.47
43.37
27.02
42.10
65.71
0.394
0.246
0.383
0.597
2.9
1.8
2.8
4.4
2.76
11.35
36.37
6.97
122
145
145
145
120
3C/1H
2C/1H
2C/2H
988
1074
993
30.02
26.51
25.42
21.33
19.82
18.88
6.1
5.4
5.2
10.35
11.35
10.52
40.52
42.63
65.94
0.368
0.388
0.599
2.7
2.8
4.4
32.11
35.15
7.02
160
160
3C/1H 993 30.03
21.33
6.1
10.39
40.65
0.370
2.7
32.29
160
Note:
Q/ITD = MBh (kW)/(Entering water temperature - Entering air temperature) when ∆T and gpm (L/s) remain constant. To determine heating capacities at a different entering water temperature or entering air temp, compute the new ITD and multiply it by the Q/ITD shown.
26 UNT-PRC001-EN
UNT-PRC001-EN.book Page 27 Tuesday, May 8, 2012 10:54 AM
Performance Data
Main Coil
Vertical Concealed
AHRI cooling performance is based on 80/67°F entering air temperature, 45°F entering chilled water temperature with a 10°F ΔT.
Heating performance is based on 70°F entering air temperature, 180°F entering hot water temperature with a 30°F ΔT.
All performance measured on high speed tap, 115 V, 0.05 ESP, without filter. Free discharge EC motor. See
Table 6, p. 25 for performance groupings.
Table 9.
2-pipe performance—free discharge EC motor
COOLING
SIZE
020
030
040
060
080
100
120
2HC
3HC
4HC
2HC
3HC
4HC
2HC
3HC
4HC
2HC
COIL
2HC
3HC
4HC
2HC
3HC
4HC
3HC
4HC
2HC
3HC
4HC
340
328
309
535
531
499
697
646
612
891
Airflow
(cfm)
211
205
192
272
270
247
913
870
980
958
899
Total
Capacity
(MBh)
5.46
6.13
7.41
6.32
7.42
8.92
7.96
10.73
12.09
13.91
15.32
17.98
15.10
19.42
21.47
24.19
28.89
34.18
25.42
29.60
34.69
Sensible
Capacity
3.98
4.48
5.02
4.71
5.53
6.12
6.30
7.53
8.03
10.35
11.41
12.33
12.22
13.76
14.50
17.83
20.45
22.36
18.87
21.00
22.72
Flow Rate
(gpm)
1.1
1.3
1.5
1.3
1.5
1.8
1.6
2.2
2.5
2.8
3.1
3.6
3.1
4.0
4.4
4.9
5.9
6.9
5.2
6.0
7.0
WPD
(ft H20)
6.96
2.40
4.26
8.95
3.36
5.89
3.18
7.42
11.65
10.45
3.87
6.15
3.41
6.72
9.63
9.57
9.63
13.30
10.51
10.11
13.70
Total
Capacity
(MBh)
14.90
17.62
18.93
17.89
21.91
23.48
22.20
27.64
29.98
35.16
43.06
47.12
44.27
53.89
58.93
61.02
77.21
85.08
65.30
80.10
87.45
0.202
0.251
0.273
0.320
0.391
0.428
0.402
0.490
0.536
0.555
HEATING
Flow
Q/ITD
Rate
(gpm)
0.136
0.160
1.0
1.2
0.172
0.163
0.199
0.213
1.3
1.2
1.5
1.6
0.702
0.773
0.594
0.728
0.795
5.1
5.7
4.4
5.3
5.8
1.5
1.8
2.0
2.3
2.9
3.1
3.0
3.6
3.9
4.1
WPD
(ft H20)
4.40
1.78
2.53
6.07
2.64
3.73
2.26
4.55
6.61
6.28
3.01
4.13
2.86
5.02
6.94
6.06
7.16
8.40
6.89
7.68
8.84
58
58
58
79
79
79
122
122
122
145
Motor
Power
(W)
37
37
37
39
39
39
145
145
160
160
160
Table 10. 4-pipe performance—free discharge EC motor
SIZE
200
300
400
600
800
1000
COIL
2C/1H
2C/2H
3C/1H
2C/1H
2C/2H
3C/1H
2C/1H
2C/2H
3C/1H
2C/1H
2C/2H
3C/1H
2C/1H
2C/2H
3C/1H
2C/1H
2C/2H
Airflow
(cfm)
205
192
192
270
247
247
328
309
309
531
499
499
646
612
612
913
870
Total
Capacity
(MBh)
5.31
5.09
5.84
6.29
5.99
7.02
7.75
7.46
10.33
13.82
13.32
14.68
14.33
13.82
18.82
24.48
23.74
COOLING
Sensible
Capacity
(MBh)
3.86
3.68
4.26
4.69
4.42
5.20
6.12
5.85
7.22
10.28
9.85
10.89
11.55
11.11
13.30
18.07
17.45
Flow Rate
(gpm)
1.1
1.0
1.2
1.3
1.2
1.4
1.6
1.5
2.1
2.8
2.7
3.0
3.10
2.8
3.8
5.0
4.8
WPD
(ft H20)
6.65
6.20
2.21
8.87
8.16
3.05
3.04
2.83
6.94
10.34
9.68
3.58
2.95
2.90
6.35
9.78
9.24
Total
Capacity
(MBh)
8.37
13.82
7.99
10.03
16.73
9.50
12.97
20.73
12.48
20.85
33.46
20.05
26.26
40.46
25.37
38.52
59.96
HEATING
Q/ITD
0.076
0.126
0.073
0.091
0.152
0.086
0.118
0.188
0.113
0.190
0.304
0.182
0.239
0.368
0.231
0.350
0.545
Flow Rate
(gpm)
0.6
0.9
0.5
0.7
1.1
0.6
0.9
1.4
0.8
1.4
2.2
1.3
1.8
2.7
1.7
2.6
4.0
WPD
(ft H20)
0.78
3.86
0.72
1.07
5.39
0.98
2.00
2.00
1.86
6.28
5.74
5.56
10.79
2.41
10.15
29.34
5.87
1200
3C/1H
2C/1H
870
958
27.95
25.06
19.73
18.59
5.7
5.1
9.05
10.24
37.29
39.72
0.339
0.361
2.5
2.7
27.69
30.98
145
160
2C/2H 899 24.13
17.78
4.9
9.56
61.42
0.558
4.1
6.14
160
3C/1H 899 28.43
20.10
5.8
9.38
38.12
0.347
2.5
28.79
160
Note:
Q/ITD = MBh (kW)/(Entering water temperature - Entering air temperature) when ∆T and gpm (L/s) remain constant. To determine heating capacities at a different entering water temperature or entering air temp, compute the new ITD and multiply it by the Q/ITD shown.
Motor
Power
(W)
37
37
37
39
39
39
58
58
58
79
79
79
122
122
122
145
145
UNT-PRC001-EN 27
UNT-PRC001-EN.book Page 28 Tuesday, May 8, 2012 10:54 AM
Performance Data
Main Coil
Horizontal Cabinet and Vertical Cabinet
AHRI cooling performance is based on 80/67°F entering air temperature, 45°F entering chilled water temperature with a 10°F
ΔT.
Heating performance is based on 70°F entering air temperature, 180°F entering hot water temperature with a 30°F
ΔT.
All performance measured on high speed tap, 115 V, zero ESP, with throwaway filter. Free discharge
EC motor. See
Table 6, p. 25 for performance groupings.
Table 11. 2-pipe performance—free discharge EC motor
SIZE
020
030
040
060
080
100
120
3HC
4HC
2HC
3HC
4HC
2HC
3HC
4HC
COIL
2HC
3HC
4HC
2HC
3HC
4HC
2HC
2HC
3HC
4HC
2HC
3HC
4HC
338
320
544
541
510
706
659
627
Airflow
(cfm)
222
217
204
280
277
256
349
912
933
893
996
976
921
Total
Capacity
(MBh)
5.61
6.35
7.72
6.41
7.53
9.10
8.08
10.91
12.33
13.94
15.48
18.23
15.21
19.62
21.75
24.50
29.25
34.66
25.64
29.90
35.13
COOLING
Sensible
Capacity
(MBh)
4.11
4.66
5.24
Flow Rate
(gpm)
1.1
1.3
1.6
4.79
5.62
6.26
6.41
1.3
1.5
1.8
1.7
7.67
8.21
10.42
11.54
12.51
12.31
13.92
14.70
18.09
20.73
22.70
19.06
21.23
23.04
2.2
2.5
2.8
3.1
3.7
3.1
4.0
4.4
5.0
5.9
7.0
5.2
6.1
7.1
WPD
(ft H20)
7.29
2.56
4.58
9.15
3.45
6.11
3.26
7.64
12.06
10.49
3.95
6.30
3.45
6.84
9.86
9.80
9.86
13.64
10.68
10.31
14.01
Total
Capacity
(MBh)
15.45
18.45
19.96
18.22
22.36
24.14
22.62
28.29
30.86
35.55
43.63
48.00
44.65
54.73
60.12
62.07
78.53
86.94
66.06
81.27
89.25
Q/ITD
0.140
0.168
0.181
0.166
0.203
0.219
0.206
0.257
0.281
0.323
0.397
0.437
0.406
0.498
0.547
0.564
0.714
0.790
0.601
0.739
0.811
HEATING
Flow Rate
(gpm)
1.0
1.2
1.3
1.2
1.5
1.6
1.5
1.9
2.1
2.4
2.9
3.2
3.0
3.7
4.0
4.1
5.2
5.8
4.4
5.4
5.9
WPD
(ft H20)
4.69
1.93
2.78
6.27
2.74
3.92
2.34
4.74
6.96
6.41
3.08
4.28
2.91
5.17
7.20
6.26
7.39
8.74
7.04
7.90
9.17
Motor
Power
(W)
37
37
37
58
58
79
79
39
39
39
58
79
122
122
122
145
145
145
160
160
160
Table 12. 4-pipe performance—free discharge EC motor
SIZE
020
030
040
060
080
COIL
2C/1H
2C/2H
3C/1H
2C/1H
2C/2H
3C/1H
2C/1H
2C/2H
3C/1H
2C/1H
2C/2H
3C/1H
2C/1H
2C/2H
Airflow
(cfm)
217
204
204
277
256
256
338
320
320
541
510
510
659
627
Total
Capacity
(MBh)
5.49
5.28
6.09
6.38
6.09
7.16
7.89
7.61
10.53
13.86
13.48
14.89
14.50
14.02
COOLING
Sensible
Capacity
(MBh)
4.00
3.83
4.45
4.76
4.52
5.31
6.24
5.99
7.38
10.35
9.99
11.06
11.69
11.29
Flow Rate
(gpm)
1.1
1.1
1.2
1.3
1.2
1.5
1.6
1.6
2.1
2.8
2.7
3.0
3.0
2.9
WPD
(ft H20)
7.02
6.58
2.37
9.08
8.40
3.16
3.13
2.94
7.19
10.39
9.90
3.68
3.16
2.98
Total
Capacity
(MBh)
8.70
14.50
8.35
10.20
17.13
9.70
13.22
21.26
12.76
21.08
34.00
20.34
26.60
41.17
HEATING
Q/ITD
0.079
0.132
0.076
0.093
0.156
0.088
0.120
0.193
0.116
0.192
0.309
0.185
0.242
0.374
Flow Rate
(gpm)
0.6
1.0
0.6
0.7
1.1
0.7
0.9
1.4
0.9
1.4
2.3
1.4
1.8
2.7
WPD
(ft H20)
0.88
4.20
0.78
1.11
5.62
1.01
2.06
2.09
1.94
6.08
6.91
5.70
11.04
2.50
Motor
Power
(W)
37
37
37
39
39
39
58
58
58
79
79
79
122
122
100
3C/1H
2C/1H
627
933
19.06
24.77
13.49
18.32
3.9
5.0
6.50
9.99
25.78
39.07
0.234
0.355
1.7
2.6
10.44
30.09
122
145
2C/2H
3C/1H
2C/1H
2C/2H
893
893
976
921
24.08
28.38
25.30
24.45
17.74
20.06
18.77
18.05
4.9
5.8
5.2
5.0
9.49
9.31
10.42
9.80
61.10
37.94
40.19
62.51
0.555
0.345
0.365
0.568
4.1
2.5
2.7
4.2
6.08
28.55
31.65
6.35
145
145
160
160 120
3C/1H 921 28.83
20.40
5.9
9.63
38.73
0.352
2.6
29.63
160
Note:
Q/ITD = MBh (kW)/(Entering water temperature - Entering air temperature) when ∆T and gpm (L/s) remain constant. To determine heating capacities at a different entering water temperature or entering air temp, compute the new ITD and multiply it by the Q/ITD shown.
28 UNT-PRC001-EN
UNT-PRC001-EN.book Page 29 Tuesday, May 8, 2012 10:54 AM
Performance Data
Main Coil
Vertical Slope Top Cabinet
AHRI cooling performance is based on 80/67°F entering air temperature, 45°F entering chilled water temperature with a 10°F
ΔT.
Heating performance is based on 70°F entering air temperature, 180°F entering hot water temperature with a 30°F
ΔT.
All performance measured on high speed tap, 115 V, zero ESP, with throwaway filter. Free discharge
EC motor. See
Table 6, p. 25 for performance groupings.
Table 13. 2-pipe performance—free discharge EC motor
SIZE
020
030
040
060
080
100
120
3HC
4HC
2HC
3HC
4HC
2HC
3HC
4HC
COIL
2HC
3HC
4HC
2HC
3HC
4HC
2HC
2HC
3HC
4HC
2HC
3HC
4HC
320
304
512
508
483
665
623
596
Airflow
(cfm)
206
200
190
262
260
242
330
856
873
839
940
923
876
Total
Capacity
(MBh)
5.38
6.04
7.36
6.20
7.26
8.80
7.82
10.58
11.98
13.57
14.90
17.63
14.70
19.06
21.16
23.65
28.13
33.51
24.88
29.00
34.22
COOLING
Sensible
Capacity
(MBh)
3.91
4.41
4.98
Flow Rate
(gpm)
1.1
1.2
1.5
4.61
5.40
6.03
6.17
1.2
1.5
1.8
1.6
7.41
7.95
10.06
11.07
12.07
11.87
13.49
14.28
17.37
19.87
21.88
18.41
20.53
22.38
2.2
2.4
2.8
3.0
3.6
3.0
3.9
4.3
4.8
5.7
6.8
5.1
5.9
6.9
WPD
(ft H20)
6.79
2.34
4.21
8.65
3.24
5.75
3.08
7.24
11.46
10.01
3.69
5.93
3.24
6.50
9.38
9.18
9.16
12.84
10.11
9.73
13.36
Total
Capacity
(MBh)
14.62
17.31
18.75
17.41
21.30
23.05
21.74
27.11
29.58
34.08
41.65
45.88
42.86
52.43
57.64
59.27
74.54
82.50
63.44
77.83
85.55
Q/ITD
0.133
0.157
0.170
0.158
0.194
0.210
0.198
0.246
0.269
0.310
0.379
0.417
0.390
0.477
0.524
0.539
0.678
0.750
0.577
0.708
0.778
HEATING
Flow Rate
(gpm)
1.0
1.2
1.3
1.2
1.4
1.5
1.5
1.8
2.0
2.3
2.8
3.1
2.9
3.5
3.8
4.0
5.0
5.5
4.2
5.2
5.7
WPD
(ft H20)
4.25
1.72
2.49
5.79
2.50
3.61
2.18
4.39
6.45
5.94
2.83
3.93
2.69
4.77
6.66
5.74
6.69
7.95
6.52
7.27
8.49
Motor
Power
(W)
37
37
37
58
58
79
79
39
39
39
58
79
122
122
122
145
145
145
160
160
160
Table 14. 4-pipe performance—free discharge EC motor
SIZE
020
030
040
060
080
COIL
2C/1H
2C/2H
3C/1H
2C/1H
2C/2H
3C/1H
2C/1H
2C/2H
3C/1H
2C/1H
2C/2H
3C/1H
2C/1H
2C/2H
Airflow
(cfm)
200
190
190
260
242
242
320
304
304
508
483
483
623
596
Total
Capacity
(MBh)
5.24
5.06
5.80
6.17
5.91
6.92
7.64
7.38
10.23
13.49
13.07
14.37
14.02
13.59
COOLING
Sensible
Capacity
(MBh)
Flow
Rate
(gpm)
3.80
3.65
4.22
4.58
4.36
5.12
6.02
5.79
7.14
9.99
9.64
10.65
11.29
10.92
1.1
1.0
1.2
1.3
1.2
1.4
1.6
1.5
2.1
2.7
2.7
2.9
2.9
2.7
WPD
(ft H20)
6.51
6.13
2.18
8.59
7.99
2.98
2.96
2.78
6.83
9.90
9.37
3.45
2.98
2.81
Total Capacity
(MBh)
8.24
13.71
7.93
9.81
16.46
9.36
12.77
20.50
12.35
20.29
32.70
19.64
25.67
39.70
HEATING
Q/ITD
0.075
0.125
0.072
0.089
0.150
0.085
0.116
0.186
0.112
0.184
0.297
0.179
0.233
0.361
Flow Rate
(gpm)
0.6
0.9
0.5
0.7
1.1
0.6
0.9
1.4
0.8
1.4
2.2
1.3
1.7
2.6
WPD
(ft H20)
0.76
3.80
0.71
1.03
5.24
0.95
1.94
1.96
1.83
5.68
5.50
5.36
10.36
2.33
100
3C/1H
2C/1H
2C/2H
3C/1H
596
873
839
839
18.55
23.87
23.25
27.33
13.09
17.56
17.04
19.26
3.8
4.9
4.7
5.6
6.18
9.34
8.90
8.68
24.94
37.39
58.37
36.38
0.227
0.340
0.531
0.331
1.7
2.5
3.9
2.4
9.85
27.83
5.57
26.50
122
145
145
145
120 2C/1H
2C/2H
923
876
24.57
23.78
18.15
17.48
5.0
4.9
9.88
9.31
38.78
60.25
0.353
0.548
2.6
4.0
26.69
5.92
160
160
3C/1H 876 28.00
19.77
5.7
9.11
37.46
0.341
2.5
27.91
160
Note:
Q/ITD = MBh (kW)/(Entering water temperature - Entering air temperature) when ∆T and gpm (L/s) remain constant. To determine heating capacities at a different entering water temperature or entering air temp, compute the new ITD and multiply it by the Q/ITD shown.
58
58
58
79
79
79
122
122
Motor
Power
(W)
37
37
37
39
39
39
UNT-PRC001-EN 29
UNT-PRC001-EN.book Page 30 Tuesday, May 8, 2012 10:54 AM
Performance Data
Main Coil
Low Vertical Cabinet and Low Vertical Concealed
AHRI cooling performance is based on 80/67°F entering air temperature, 45°F entering chilled water temperature with a 10°F ΔT.
Heating performance is based on 70°F entering air temperature, 180°F entering hot water temperature with a 30°F ΔT.
All performance measured on high speed tap, 115 V, zero ESP, with throwaway filter. Free discharge
EC motor. See
Table 6, p. 25 for performance groupings.
Table 15. 2-pipe performance—free discharge EC motor
SIZE
030
040
060
COIL
2HC
2HC
3HC
2HC
2HC
3HC
2HC
2HC
3HC
Unit Type
Cabinet
Concealed
Concealed
Cabinet
Concealed
Concealed
Cabinet
Concealed
Concealed
Airflow
(cfm)
285
285
255
380
380
350
551
551
492
Total
Capacity
(MBh)
6.58
6.58
7.50
10.70
10.70
9.94
12.04
12.04
14.33
COOLING
Sensible
Capacity
(MBh)
Flow
Rate
(gpm)
5.24
5.24
1.31
1.31
5.29
7.70
7.70
7.35
1.49
2.13
2.13
1.98
9.87
9.87
10.10
2.40
2.40
2.86
WPD
(ft H20)
2.16
2.16
3.37
6.31
6.31
1.69
2.12
2.12
3.69
Total
Capacity
(MBh)
19.51
19.51
22.51
27.28
27.28
30.71
37.45
37.45
43.29
HEATING
Flow
Q/ITD
Rate
(gpm)
0.18
0.18
1.30
1.30
0.20
0.25
0.25
0.28
1.50
1.82
1.82
2.05
0.34
0.34
0.39
2.49
2.49
2.88
WPD
(ft H20)
1.79
1.79
3.13
3.95
3.95
1.59
2.08
2.08
3.33
Motor
Power
(W)
28
28
28
50
50
50
66
66
66
Table 16. 4-pipe performance—free discharge EC motor
SIZE
030
040
COIL
2C/1H
2C/2H
3C/1H
2C/1H
2C/2H
Unit Type
Cabinet
Concealed
Concealed
Cabinet
Concealed
Airflow
(cfm)
255
239
239
350
320
Total
Capacity
(MBh)
6.02
5.68
7.05
9.95
9.13
COOLING
Sensible
Capacity
(MBh)
4.76
4.48
4.96
7.10
6.46
Flow
Rate
(gpm)
1.20
1.13
1.41
1.98
1.82
WPD
(ft H20)
1.84
1.66
3.40
5.53
4.74
Total
Capacity
(MBh)
10.89
17.02
10.39
15.60
23.64
HEATING
Q/ITD
0.10
0.15
0.09
0.14
0.21
Flow
Rate
(gpm)
0.73
1.13
0.69
1.04
1.57
WPD
(ft H20)
1.47
1.39
1.35
3.58
3.04
Motor
Power
(W)
28
28
28
50
50
3C/1H
2C/1H
Concealed
Cabinet
320
492
8.87
10.99
6.59
8.99
1.77
2.19
1.37
1.79
14.52
21.80
0.13
0.20
0.97
1.45
3.15
7.76
50
66
060 2C/2H
3C/1H
Concealed
Concealed
449
449
9.89
13.33
8.19
9.37
1.97
2.66
1.47
3.23
31.87
20.31
0.29
0.18
2.12
1.35
1.54
6.85
66
66
Note:
Q/ITD = MBh (kW)/(Entering water temperature - Entering air temperature) when ∆T and gpm (L/s) remain constant. To determine heating capacities at a different entering water temperature or entering air temp, compute the new ITD and multiply it by the Q/ITD shown.
30 UNT-PRC001-EN
UNT-PRC001-EN.book Page 31 Tuesday, May 8, 2012 10:54 AM
Performance Data
Main Coil
Horizontal Concealed, Compact Concealed, Horizontal Cabinet, Horizontal Recessed and
Vertical Recessed
AHRI cooling performance is based on 80/67°F entering air temperature, 45°F entering chilled water temperature with a 10°F ΔT.
Heating performance is based on 70°F entering air temperature, 180°F entering hot water temperature with a 30°F ΔT.
All performance measured on high speed tap, 115 V, 0.20 ESP, without filter. High static EC motor.
See
for performance groupings.
Table 17. 2-pipe performance—high static EC motor
SIZE
200
300
400
600
800
1000
1200
2HC
3HC
4HC
2HC
3HC
4HC
2HC
3HC
4HC
2HC
3HC
4HC
2HC
3HC
4HC
COIL
2HC
3HC
4HC
2HC
3HC
4HC
410
506
470
700
824
760
950
927
Airflow
(cfm)
314
319
295
380
358
330
870
1199
1360
1276
1330
1419
1330
Total
Capacity
(MBh)
6.92
8.40
10.27
7.63
9.00
11.05
9.09
14.30
16.38
16.22
20.72
24.46
18.83
25.08
27.85
29.39
38.20
45.19
30.90
39.09
46.31
COOLING
Sensible
Capacity
(MBh)
Flow
Rate
(gpm)
5.25
6.35
1.4
1.7
7.14
5.91
6.88
7.75
2.1
1.6
1.9
2.3
7.33
10.45
11.23
12.50
16.04
17.32
15.64
18.35
19.29
22.38
27.95
30.40
23.78
28.71
31.24
5.8
6.0
7.8
9.2
6.4
8.0
9.4
1.9
2.9
3.3
3.3
4.2
5.0
4.0
5.2
WPD
(ft H20)
10.83
4.32
7.75
12.84
4.89
8.83
4.16
12.60
20.25
14.16
6.91
10.99
5.40
11.17
16.00
13.98
16.58
22.30
15.50
17.49
23.50
Total
Capacity
(MBh)
19.68
24.71
27.07
22.14
26.79
29.53
25.18
37.81
41.90
41.80
58.43
65.21
53.86
69.93
77.84
74.76
103.27
115.47
79.76
106.28
119.18
Q/ITD
0.179
0.225
0.246
0.201
0.244
0.268
0.229
0.344
0.381
0.380
0.531
0.593
0.490
0.636
0.708
0.680
0.939
1.050
0.725
0.966
1.083
HEATING
Flow Rate
(gpm)
1.3
1.7
1.8
1.5
1.8
2.0
1.7
2.5
2.8
2.8
3.9
4.3
3.6
4.7
5.2
5.0
6.9
7.7
5.3
7.1
7.9
WPD
(ft H20)
7.18
3.28
4.83
8.85
3.80
5.65
2.85
8.05
12.12
8.63
5.36
7.59
4.16
8.20
11.67
8.90
12.55
14.73
10.07
13.27
15.62
110
110
110
162
162
162
298
298
Motor
Power
(W)
84
84
84
91
91
91
298
252
252
252
314
314
314
Table 18. 4-pipe performance—high static EC motor
SIZE
200
300
COIL
2C/1H
2C/2H
3C/1H
2C/1H
2C/2H
3C/1H
Airflow
(cfm)
319
295
295
358
330
330
Total Capacity
(MBh)
6.94
6.67
8.04
7.37
7.08
8.60
COOLING
Sensible
Capacity
(MBh)
5.27
Flow Rate
(gpm)
1.4
5.03
6.03
1.4
1.7
5.66
5.40
6.53
1.5
1.5
1.8
WPD
(ft H20)
10.89
10.18
4.00
12.10
11.32
4.52
Total
Capacity
(MBh)
11.04
18.88
10.57
11.76
20.30
11.26
HEATING
Q/ITD
0.100
0.172
0.096
0.107
0.185
0.102
Flow Rate
(gpm)
0.7
1.3
0.7
0.8
1.4
0.8
WPD
(ft H20)
1.27
6.68
1.18
1.42
7.59
1.32
Motor
Power
(W)
37
37
37
39
39
39
400
600
800
1000
1200
2C/1H
2C/2H
3C/1H
2C/1H
2C/2H
3C/1H
2C/1H
2C/2H
3C/1H
2C/1H
2C/2H
3C/1H
2C/1H
2C/2H
506
470
470
824
760
760
927
870
870
1360
1276
1276
1419
1330
10.23
9.83
13.76
17.64
16.95
19.80
18.53
17.89
24.27
31.27
30.28
36.88
31.90
30.90
8.42
8.04
9.99
13.85
13.19
15.21
15.35
14.74
17.66
24.13
23.20
26.84
24.73
23.78
2.1
2.0
2.8
3.6
3.5
4.1
3.9
3.8
5.0
6.4
6.2
7.5
6.6
6.4
5.10
4.77
11.77
16.39
15.28
6.36
5.25
4.93
10.53
15.64
14.75
15.53
16.42
15.49
16.64
27.44
16.02
26.58
43.91
25.49
32.36
51.06
31.26
48.74
77.72
47.07
49.85
79.78
0.151
0.249
0.146
0.242
0.399
0.232
0.294
0.464
0.284
0.443
0.707
0.428
0.453
0.725
1.1
1.8
1.1
1.8
2.9
1.7
2.2
3.4
2.1
3.3
5.2
3.1
3.3
5.3
3.09
3.34
2.89
9.16
9.45
8.51
15.63
3.76
14.70
44.63
9.58
41.94
46.47
10.07
3C/1H 1330 37.78
27.59
7.7
16.41
48.17
0.438
3.2
43.70
160
Note:
Q/ITD = MBh (kW)/(Entering water temperature - Entering air temperature) when ∆T and gpm (L/s) remain constant. To determine heating capacities at a different entering water temperature or entering air temp, compute the new ITD and multiply it by the Q/ITD shown.
58
58
58
79
79
79
122
122
122
145
145
145
160
160
UNT-PRC001-EN 31
UNT-PRC001-EN.book Page 32 Tuesday, May 8, 2012 10:54 AM
Performance Data
Main Coil
Vertical Concealed
AHRI cooling performance is based on 80/67°F entering air temperature, 45°F entering chilled water temperature with a 10°F ΔT.
Heating performance is based on 70°F entering air temperature, 180°F entering hot water temperature with a 30°F ΔT.
All performance measured on high speed tap, 115 V, 0.20 ESP, without filter. High static EC motor.
See
for performance groupings.
Table 19. 2-pipe performance—high static EC motor
SIZE
020
030
040
060
080
100
120
2HC
3HC
4HC
2HC
3HC
4HC
2HC
3HC
4HC
2HC
COIL
2HC
3HC
4HC
2HC
3HC
4HC
3HC
4HC
2HC
3HC
4HC
Airflow
(cfm)
274
274
258
341
319
299
377
455
429
632
733
687
865
845
800
1089
1206
1145
1218
1291
1223
Total
Capacity
(MBh)
6.45
7.71
9.45
7.26
8.47
10.43
8.67
13.57
15.58
15.42
19.49
23.15
17.96
24.00
26.69
27.95
35.92
42.77
29.62
37.31
44.42
COOLING
Sensible
Capacity
(MBh)
Flow Rate
(gpm)
4.83
5.76
1.3
1.6
6.51
5.56
6.41
7.27
1.9
1.5
1.8
2.1
6.94
9.83
10.61
11.76
14.93
16.27
14.80
17.44
18.39
21.08
26.04
28.58
22.60
27.20
29.81
7.3
8.7
6.1
7.7
9.1
1.8
2.8
3.2
3.2
4.0
4.7
3.8
5.0
5.5
5.7
WPD
(ft H20)
9.63
3.72
6.71
11.80
4.40
8.0
3.83
11.49
18.55
12.96
6.18
9.95
4.96
10.33
14.85
12.76
14.78
20.20
14.36
16.04
21.81
Total
Capacity
(MBh)
17.95
22.13
24.31
20.70
24.76
27.36
23.84
35.17
39.04
39.23
54.10
60.53
50.88
65.58
73.06
70.18
95.02
106.34
75.51
99.64
111.87
Q/ITD
0.163
0.201
0.221
0.188
0.225
0.249
0.217
0.320
0.355
0.357
0.492
0.550
0.463
0.596
0.664
0.638
0.864
0.967
0.686
0.906
1.017
HEATING
Flow Rate
(gpm)
1.2
1.5
1.6
1.4
1.7
1.8
1.6
2.3
2.6
2.6
3.6
4.0
3.4
4.4
4.9
4.7
6.3
7.1
5.0
6.6
7.5
WPD
(ft H20)
6.11
2.68
3.97
7.86
3.29
4.92
2.58
7.05
10.66
7.68
4.63
6.60
3.73
7.26
10.36
7.90
10.68
12.65
9.07
11.71
13.89
110
110
110
162
162
162
298
298
298
252
Motor
Power
(W)
84
84
84
91
91
91
252
252
314
314
314
Table 20. 4-pipe performance—high static EC motor
SIZE
020
030
040
060
080
100
COIL
2C/1H
2C/2H
3C/1H
2C/1H
2C/2H
3C/1H
2C/1H
2C/2H
3C/1H
2C/1H
2C/2H
3C/1H
2C/1H
2C/2H
3C/1H
2C/1H
2C/2H
Airflow
(cfm)
217
204
204
277
256
256
338
320
320
541
510
510
659
627
627
933
893
Total
Capacity
(MBh)
5.49
5.28
6.09
6.38
6.09
7.16
7.89
7.61
10.53
13.86
13.48
14.89
14.50
14.02
19.06
24.77
24.08
COOLING
Sensible
Capacity
(MBh)
4.00
3.83
4.45
4.76
4.52
5.31
6.24
5.99
7.38
10.35
9.99
11.06
11.69
11.29
19.06
18.32
17.74
Flow Rate
(gpm)
1.11
1.1
1.2
1.2
1.2
1.5
1.6
1.6
2.1
2.8
2.7
3.0
3.0
2.9
3.9
5.0
4.9
WPD
(ft H20)
7.02
6.58
2.37
9.08
8.40
3.16
3.13
2.94
7.19
10.39
9.90
3.68
3.16
2.98
6.50
9.99
9.49
Total
Capacity
(MBh)
8.70
14.50
8.35
10.20
17.13
9.70
13.22
21.26
12.76
21.08
34.00
20.34
26.60
41.17
25.78
39.07
61.10
HEATING
Q/ITD
0.079
0.132
0.076
0.093
0.156
0.088
0.120
0.193
0.116
0.192
0.309
0.185
0.242
0.374
0.234
0.355
0.555
Flow Rate
(gpm)
0.6
1.0
0.6
0.7
1.1
0.7
0.9
1.4
0.9
1.4
2.3
1.4
1.8
2.7
1.7
2.6
4.1
WPD
(ft H20)
0.84
43.20
0.78
1.11
5.93
1.01
2.06
2.09
1.94
6.08
5.91
5.70
11.04
2.50
10.44
30.09
6.08
120
3C/1H
2C/1H
893
976
28.38
25.30
20.06
18.77
5.8
5.2
9.31
10.42
37.94
31.65
0.345
0.365
2.5
2.7
28.55
31.65
145
160
2C/2H 921 24.45
18.05
5.0
9.80
62.51
0.568
4.2
6.35
160
3C/1H 921 28.83
20.40
5.9
9.63
38.73
0.352
2.6
29.63
160
Note:
Q/ITD = MBh (kW)/(Entering water temperature - Entering air temperature) when ∆T and gpm (L/s) remain constant. To determine heating capacities at a different entering water temperature or entering air temp, compute the new ITD and multiply it by the Q/ITD shown.
Motor
Power
(W)
37
37
37
39
39
39
58
58
58
79
79
79
122
122
122
145
145
32 UNT-PRC001-EN
UNT-PRC001-EN.book Page 33 Tuesday, May 8, 2012 10:54 AM
Performance Data
Reheat Coils
Horizontal Concealed, Compact Concealed, Horizontal Recessed and Vertical Recessed
The following performance data represents the 1-row hot water and steam reheat coils that are available on fan-coil units in conjunction with a 2, 3, or 4-row cooling coil.
Heating performance is based on 55°F entering air temperature, 180°F entering hot water temperature (hot water coil) or 2 psig and 5 psig entering steam pressure (steam coil) and a 15°F ΔT.
All performance measured on high speed tap, 115 V, 0.05 ESP, without filter. Free discharge EC motor. See
Table 6, p. 25 for performance groupings.
Table 21. Standard Capacity and High Capacity hot water reheat coil—free discharge EC motor
SIZE
020
030
040
060
080
100
Main
Cooling
Coil
2-row
3-row
4-row
2-row
3-row
4-row
2-row
3-row
4-row
2-row
3-row
4-row
2-row
3-row
4-row
2-row
3-row
Airflow
(cfm)
246
242
222
313
309
276
381
365
340
609
604
557
790
724
676
1015
1052
Standard capacity hot water reheat coil
Total
Capacity
(MBh) Q/ITD
Flow Rate
(gpm)
WPD
(ft H20)
3.96
3.89
0.032
0.031
0.5
0.5
0.07
0.07
3.73
4.45
4.42
4.18
5.95
5.69
5.46
9.51
9.34
8.83
12.02
11.22
10.92
17.34
17.22
0.030
0.036
0.035
0.033
0.048
0.046
0.044
0.076
0.075
0.071
0.096
0.090
0.087
0.139
0.138
0.5
0.6
0.6
0.6
0.8
0.8
0.7
1.3
1.2
1.2
1.6
1.5
1.5
2.3
2.3
0.06
0.09
0.09
0.08
0.17
0.16
0.15
0.51
0.49
0.44
0.92
0.81
0.78
2.41
2.38
High capacity hot water reheat coil
Total
Capacity
(MBh) Q/ITD
Flow Rate
(gpm)
WPD
(ft H20)
8.67
8.55
0.069
0.068
1.2
1.1
0.28
0.27
8.27
9.49
9.43
9.04
12.81
12.37
11.98
20.34
20.05
19.19
25.94
24.60
24.08
38.00
37.80
0.066
0.076
0.075
0.072
0.102
0.099
0.096
0.163
0.160
0.154
0.208
0.197
0.193
0.304
0.302
1.1
1.3
1.3
1.2
1.7
1.7
1.6
2.7
2.7
2.6
3.5
3.3
3.2
5.1
5.0
0.26
0.33
0.33
0.30
0.66
0.62
0.59
1.93
1.88
1.74
3.58
3.26
3.14
9.73
9.64
120
4-row
2-row
1105
988
16.37
17.97
0.131
0.144
2.4
2.4
2.18
2.57
36.33
39.07
0.291
0.313
4.8
5.2
8.98
10.22
160
145
3-row
4-row
1074
993
17.33
16.36
0.139
0.131
2.3
2.2
2.41
2.18
37.99
36.33
0.304
0.291
5.1
4.8
9.72
8.97
160
160
Note:
Q/ITD = MBh (kW)/(Entering water temperature - Entering air temperature) when ∆T and gpm (L/s) remain constant. To determine heating capacities at a different entering water temperature or entering air temp, compute the new ITD and multiply it by the Q/ITD shown.
Motor
Power (W)
37
37
37
39
39
39
58
58
58
79
79
79
122
122
122
145
145
Table 22. Steam coil performance—free discharge EC motor
2 PSIG 5 PSIG
SIZE
020
030
040
Main Cooling
Coil
2-row
3-row
4-row
2-row
3-row
4-row
2-row
3-row
4-row
Airflow (cfm)
246
242
222
313
309
276
381
365
340
Total Capacity
(MBh)
7.65
7.53
7.22
8.57
8.50
8.06
11.07
10.61
10.19
Q/ITD
0.051
0.051
0.048
0.058
0.057
0.054
0.074
0.071
0.068
Heating LAT
(F)
86.73
87.14
88.21
84.02
84.21
85.45
84.74
85.77
88.76
Total Capacity
(MBh)
8.06
7.93
7.60
9.02
8.95
8.49
11.66
11.17
10.73
Q/ITD
0.051
0.051
0.048
0.057
0.057
0.054
0.074
0.071
0.068
Heating LAT
(F)
88.41
88.84
89.96
85.55
85.75
87.06
86.31
87.39
88.44
Motor
Power (W)
37
37
37
39
39
39
58
58
58
060
080
100
2-row
3-row
4-row
2-row
3-row
4-row
2-row
3-row
4-row
2-row
609
604
557
790
724
676
1015
1052
988
1105
17.09
16.79
15.92
21.28
19.93
19.42
30.15
29.97
28.56
31.19
0.115
0.113
0.107
0.143
0.134
0.130
0.202
0.201
0.192
0.209
83.66
84.07
85.34
84.43
86.00
86.64
85.69
85.84
87.04
84.86
18.00
17.68
16.76
22.41
20.99
20.45
31.77
31.57
30.09
32.86
0.115
0.113
0.107
0.143
0.134
0.130
0.202
0.201
0.192
0.209
85.18
85.61
86.95
85.99
87.64
88.32
87.33
87.49
88.75
86.46
79
79
79
122
122
122
145
145
145
160 120
3-row
4-row
1074
993
30.14
28.55
0.202
0.192
85.69
87.05
31.76
30.08
0.202
0.192
87.34
88.76
160
160
Note: Q/ITD = MBh (kW)/(Entering water temperature - Entering air temperature) when ∆T and gpm (L/s) remain constant. To determine heating capacities at a different entering water temperature or entering air temp, compute the new ITD and multiply it by the Q/ITD shown.
UNT-PRC001-EN 33
UNT-PRC001-EN.book Page 34 Tuesday, May 8, 2012 10:54 AM
Performance Data
Reheat Coils
Vertical Concealed
The following performance data represents the 1-row hot water and steam reheat coils that are available on fan-coil units in conjunction with a 2, 3, or 4-row cooling coil.
Heating performance is based on 55°F entering air temperature, 180°F entering hot water temperature (hot water coil) or 2 psig and 5 psig entering steam pressure (steam coil) and a 15°F ΔT.
All performance measured on high speed tap, 115 V, 0.05 ESP, without filter. Free discharge EC motor. See
Table 6, p. 25 for performance groupings.
Table 23. Standard Capacity and High Capacity hot water reheat coil—free discharge EC motor
SIZE
020
030
040
060
Main Cooling
Coil
2-row
3-row
4-row
2-row
3-row
4-row
2-row
3-row
4-row
2-row
3-row
4-row
Airflow
(cfm)
211
205
192
272
270
247
340
328
309
535
531
499
Standard capacity hot water reheat coil
Total
Capacity
(MBh) Q/ITD
Flow Rate
(gpm)
WPD
(ft H20)
3.69
3.61
3.48
4.20
4.17
3.98
5.65
5.44
5.24
8.96
8.82
8.43
0.030
0.029
0.028
0.034
0.033
0.032
0.045
0.044
0.042
0.072
0.071
0.067
0.5
0.5
0.5
0.6
0.6
0.5
0.8
0.7
0.7
1.2
1.2
1.1
0.06
0.06
0.06
0.08
0.08
0.07
0.16
0.15
0.14
0.46
0.44
0.41
High capacity hot water reheat coil
Total
Capacity
(MBh) Q/ITD
Flow
Rate
(gpm)
WPD
(ft H20)
8.20
8.07
7.85
9.06
9.02
8.71
12.30
11.94
11.61
19.41
19.18
18.51
0.066
0.065
0.063
0.072
0.072
0.070
0.098
0.096
0.093
0.155
0.153
0.148
1.1
1.1
1.1
1.2
1.2
1.2
1.6
1.6
1.6
2.6
2.6
2.5
0.25
0.25
0.24
0.30
0.30
0.28
0.61
0.58
0.55
1.78
1.74
1.64
080
100
2-row
3-row
4-row
2-row
3-row
4-row
2-row
697
646
612
891
913
870
980
11.43
10.76
10.51
16.33
16.25
15.57
17.06
0.091
0.086
0.084
0.131
0.130
0.125
0.136
1.5
1.4
1.4
2.2
2.2
2.1
2.3
0.84
0.76
0.72
2.17
2.15
1.99
2.34
24.95
23.80
23.37
36.27
36.13
34.95
37.52
0.200
0.190
0.187
0.290
0.289
0.280
0.300
3.3
3.2
3.1
4.8
4.8
4.7
5.0
3.34
3.07
2.97
8.95
8.89
8.38
9.51
122
122
122
145
145
145
160 120
3-row
4-row
958
899
16.56
15.75
0.132
0.126
2.2
2.1
2.22
2.04
36.66
35.26
0.293
0.282
4.9
4.7
9.12
8.51
160
160
Note: Q/ITD = MBh (kW)/(Entering water temperature - Entering air temperature) when ∆T and gpm (L/s) remain constant. To determine heating capacities at a different entering water temperature or entering air temp, compute the new ITD and multiply it by the Q/ITD shown.
Motor
Power
(W)
37
37
37
39
39
39
58
58
58
79
79
79
Table 24. Steam coil performance—free discharge EC motor
SIZE
020
030
040
060
080
100
Main Cooling
Coil
2-row
3-row
4-row
2-row
3-row
4-row
2-row
3-row
4-row
2-row
3-row
4-row
2-row
3-row
4-row
2-row
3-row
4-row
Airflow (cfm)
211
205
192
272
270
247
340
328
309
535
531
499
697
646
612
891
913
870
Total
Capacity
(MBh)
7.15
7.00
6.77
8.09
8.04
7.70
10.53
10.15
9.80
16.14
15.91
15.22
20.28
19.15
18.72
28.50
28.37
24.24
2 PSIG
Q/ITD
0.048
0.047
0.045
0.054
0.054
0.052
0.071
0.068
0.066
0.108
0.107
0.102
0.136
0.129
0.126
0.191
0.190
0.183
Heating LAT
(F)
88.47
89.02
89.91
85.38
85.51
86.59
85.95
86.86
87.73
85.01
85.35
86.43
85.58
87.00
87.56
87.09
87.21
88.25
Total
Capacity
(MBh)
7.52
7.37
7.12
8.52
8.47
8.10
11.09
10.69
10.32
16.99
16.75
16.03
21.35
20.16
19.72
30.02
29.88
28.70
5 PSIG
Q/ITD
0.048
0.047
0.045
0.054
0.054
0.052
0.071
0.068
0.066
0.108
0.107
0.102
0.136
0.128
0.126
0.191
0.190
0.183
Heating LAT
(F)
90.24
90.82
91.75
86.98
87.12
88.26
87.59
88.54
89.46
86.60
86.96
88.10
87.20
88.69
89.29
88.81
88.93
90.03
120 2-row
3-row
4-row
980
958
899
29.69
28.87
27.54
0.199
0.194
0.185
86.07
86.77
87.97
31.28
30.41
29.01
0.199
0.194
0.185
87.73
88.46
89.73
160
160
160
Note:
Q/ITD = MBh (kW)/(Entering water temperature - Entering air temperature) when ∆T and gpm (L/s) remain constant. To determine heating capacities at a different entering water temperature or entering air temp, compute the new ITD and multiply it by the Q/ITD shown.
Motor Power
(W)
37
37
37
39
39
39
58
58
58
79
79
79
122
122
122
145
145
145
34 UNT-PRC001-EN
UNT-PRC001-EN.book Page 35 Tuesday, May 8, 2012 10:54 AM
Performance Data
Reheat Coils
Horizontal Cabinet and Vertical Cabinet
The following performance data represents the 1-row hot water and steam reheat coils that are available on fan-coil units in conjunction with a 2, 3, or 4-row cooling coil.
Heating performance is based on 55°F entering air temperature, 180°F entering hot water temperature (hot water coil) or 2 psig and 5 psig entering steam pressure (steam coil) and a 15°F ΔT.
All performance measured on high speed tap, 115 V, zero ESP, with throwaway filter. Free discharge
EC motor. See
Table 6, p. 25 for performance groupings.
Table 25. Standard Capacity and High Capacity hot water reheat coil—free discharge EC motor
SIZE
020
030
040
060
Main
Cooling
Coil
2-row
3-row
4-row
2-row
3-row
4-row
2-row
3-row
4-row
2-row
3-row
4-row
Airflow
(cfm)
222
217
204
280
277
256
349
338
320
544
541
510
Standard capacity hot water reheat coil
Total
Capacity
(MBh) Q/ITD
Flow Rate
(gpm)
WPD
(ft H20)
3.77
3.70
3.58
4.25
4.22
4.05
5.72
5.51
5.32
9.03
8.90
8.51
0.030
0.030
0.029
0.034
0.034
0.032
0.046
0.044
0.043
0.072
0.071
0.068
0.5
0.5
0.5
0.6
0.6
0.5
0.8
0.7
0.7
1.2
1.2
1.1
0.07
0.06
0.06
0.08
0.08
0.07
0.16
0.15
0.14
0.46
0.45
0.42
High capacity hot water reheat coil
Total
Capacity
(MBh) Q/ITD
Flow Rate
(gpm)
WPD
(ft H20)
8.35
8.23
8.03
9.14
9.11
8.81
12.42
12.06
11.74
19.53
19.30
18.65
0.067
0.066
0.064
0.073
0.073
0.070
0.099
0.096
0.094
0.156
0.154
0.149
1.1
1.1
1.1
1.2
1.2
1.2
1.7
1.6
1.6
2.6
2.6
2.5
0.26
0.26
0.25
0.31
0.31
0.29
0.63
0.59
0.57
1.80
1.76
1.66
080
100
2-row
3-row
4-row
2-row
3-row
4-row
2-row
706
659
627
912
933
893
996
11.49
10.84
10.61
16.51
16.41
15.74
17.19
0.092
0.087
0.085
0.132
0.131
0.126
0.138
1.5
1.4
1.4
2.2
2.2
2.1
2.3
0.85
0.77
0.74
2.21
2.19
2.03
2.37
25.05
23.95
23.55
36.58
36.39
35.23
37.74
0.200
0.192
0.188
0.293
0.291
0.282
0.302
3.3
3.2
3.1
4.9
4.8
4.7
5.0
3.37
3.11
3.01
9.09
9.01
8.50
9.61
122
122
122
145
145
145
160 120
3-row
4-row
976
921
16.69
15.90
0.134
0.127
2.2
2.1
2.25
2.07
36.88
35.52
0.295
0.284
4.9
4.7
9.22
8.63
160
160
Note: Q/ITD = MBh (kW)/(Entering water temperature - Entering air temperature) when ∆T and gpm (L/s) remain constant. To determine heating capacities at a different entering water temperature or entering air temp, compute the new ITD and multiply it by the Q/ITD shown.
Motor
Power
(W)
37
37
37
39
39
39
58
58
58
79
79
79
Table 26. Steam reheat coil—free discharge EC motor
SIZE
020
030
040
060
080
Main Cooling
Coil
2-row
3-row
4-row
2-row
3-row
4-row
2-row
3-row
4-row
2-row
3-row
4-row
2-row
3-row
Airflow (cfm)
222
217
204
280
277
256
349
338
320
544
541
510
706
659
Total Capacity
(MBh)
7.31
7.18
6.96
8.18
8.14
7.81
10.66
10.28
9.94
16.26
16.03
15.36
20.38
19.29
2 PSIG
Q/ITD
0.049
0.048
0.047
0.055
0.055
0.052
0.072
0.069
0.067
0.109
0.108
0.103
0.137
0.129
Heating LAT (F)
87.89
88.35
89.17
85.10
85.23
86.23
85.65
86.54
87.37
84.83
85.17
86.20
85.46
86.81
Total Capacity
(MBh)
7.69
7.56
7.32
8.61
8.57
8.22
11.22
10.82
10.47
17.12
16.88
16.18
21.46
20.31
5 PSIG
Q/ITD
0.049
0.048
0.047
0.055
0.055
0.052
0.071
0.069
0.067
0.109
0.108
0.103
0.137
0.129
Heating
LAT (F)
89.63
90.12
90.98
86.69
86.83
87.88
87.28
88.21
89.08
86.41
86.77
87.85
87.08
88.50
Motor
Power (W)
37
37
37
39
39
39
58
58
58
79
79
79
122
122
100
4-row
2-row
3-row
4-row
2-row
627
912
933
893
996
18.90
28.80
28.62
27.52
29.90
0.127
0.193
0.192
0.185
0.201
87.33
86.83
86.98
87.99
85.89
19.90
30.34
30.15
28.99
31.50
0.127
0.193
0.192
0.185
0.201
89.04
88.53
88.69
89.75
87.54
122
145
145
145
160 120
3-row
4-row
976
921
29.09
27.79
0.195
0.187
86.58
87.73
30.64
29.28
0.195
0.186
88.27
89.48
160
160
Note:
Q/ITD = MBh (kW)/(Entering water temperature - Entering air temperature) when ∆T and gpm (L/s) remain constant. To determine heating capacities at a different entering water temperature or entering air temp, compute the new ITD and multiply it by the Q/ITD shown.
UNT-PRC001-EN 35
UNT-PRC001-EN.book Page 36 Tuesday, May 8, 2012 10:54 AM
Performance Data
Reheat Coils
Vertical Slope Top Cabinet
The following performance data represents the 1-row hot water and steam reheat coils that are available on fan-coil units in conjunction with a 2, 3, or 4-row cooling coil.
Heating performance is based on 55°F entering air temperature, 180°F entering hot water temperature (hot water coil) or 2 psig and 5 psig entering steam pressure (steam coil) and a 15°F ΔT.
All performance measured on high speed tap, 115 V, zero ESP, with throwaway filter. Free discharge
EC motor. See
Table 6, p. 25 for performance groupings.
Table 27. Standard Capacity and High capacity hot water reheat coil with high static motor—free discharge EC motor
SIZE
020
030
040
060
080
100
Main
Cooling
Coil
2-row
3-row
4-row
2-row
3-row
4-row
2-row
3-row
4-row
2-row
3-row
4-row
2-row
3-row
4-row
2-row
3-row
Airflow
(cfm)
206
200
190
262
260
242
330
320
304
512
508
483
665
623
596
856
873
Standard capacity hot water reheat coil
Total
Capacity
(MBh) Q/ITD
Flow Rate
(gpm)
WPD
(ft H20)
3.64
3.57
0.029
0.029
0.5
0.5
0.06
0.06
3.46
4.12
4.10
3.94
5.57
5.38
5.21
8.76
8.65
8.31
11.20
10.61
10.39
16.02
15.93
0.028
0.033
0.033
0.032
0.045
0.043
0.042
0.070
0.069
0.066
0.090
0.085
0.083
0.128
0.127
0.5
0.6
0.6
0.5
0.7
0.7
0.7
1.2
1.2
1.1
1.5
1.4
1.4
2.1
2.1
0.06
0.08
0.08
0.07
0.15
0.14
0.14
0.44
0.43
0.40
0.81
0.74
0.71
2.10
2.08
High capacity hot water reheat coil
Total
Capacity
(MBh) Q/ITD
Flow Rate
(gpm)
WPD
(ft H20)
8.13
8.00
0.065
0.064
1.1
1.1
0.25
0.24
7.82
8.94
8.90
8.64
12.16
11.84
11.55
19.08
18.88
18.30
24.55
23.54
23.17
35.73
35.57
0.063
0.072
0.071
0.069
0.097
0.095
0.092
0.153
0.151
0.146
0.196
0.188
0.185
0.286
0.285
1.0
1.2
1.2
1.2
1.6
1.6
1.5
2.5
2.5
2.4
3.3
3.1
3.1
4.8
4.7
0.23
0.30
0.29
0.28
0.60
0.57
0.55
1.73
1.69
1.60
3.25
3.01
2.93
8.71
8.65
120
4-row
2-row
839
940
15.33
16.74
0.123
0.134
2.0
2.2
1.94
2.27
34.54
36.97
0.276
0.296
4.6
4.9
8.20
9.26
145
160
3-row
4-row
923
876
16.30
15.58
0.130
0.125
2.2
2.1
2.16
2.00
36.21
34.98
0.290
0.280
4.8
4.7
8.92
8.38
160
160
Note:
Q/ITD = MBh (kW)/(Entering water temperature - Entering air temperature) when ∆T and gpm (L/s) remain constant. To determine heating capacities at a different entering water temperature or entering air temp, compute the new ITD and multiply it by the Q/ITD shown.
58
58
58
79
79
79
122
122
122
145
145
Motor
Power
(W)
37
37
37
39
39
39
Table 28. Steam reheat coil with high static motor—free discharge EC motor
2 PSIG 5 PSIG
SIZE
020
030
040
Main Cooling
Coil
2-row
3-row
4-row
2-row
3-row
4-row
2-row
3-row
4-row
Airflow (cfm)
206
200
190
262
260
242
330
320
304
Total Capacity
(MBh)
7.06
6.93
6.73
7.95
7.91
7.62
10.39
10.04
9.74
Q/ITD
0.047
0.047
0.045
0.053
0.053
0.051
0.070
0.067
0.065
Heating LAT (F)
88.78
89.28
90.04
85.79
85.90
86.84
86.29
87.12
87.90
Total Capacity
(MBh)
7.44
7.29
7.09
8.37
8.33
8.02
10.94
10.57
10.25
Q/ITD
0.047
0.046
0.045
0.053
0.053
0.051
0.070
0.067
0.065
Heating LAT
(F)
90.56
91.10
91.89
87.42
87.53
88.52
87.94
88.82
89.64
Motor
Power (W)
37
37
37
39
39
39
58
58
58
060
080
100
2-row
3-row
4-row
2-row
3-row
4-row
2-row
3-row
4-row
2-row
512
508
483
665
623
596
856
873
839
940
15.80
15.60
15.01
19.89
18.89
18.53
27.99
27.84
26.85
29.17
0.106
0.105
0.101
0.133
0.127
0.124
0.188
0.187
0.180
0.196
85.51
85.83
86.77
86.05
87.34
87.82
87.55
87.69
88.63
86.51
16.64
16.43
15.81
20.94
19.89
19.51
29.48
29.33
28.29
30.73
0.106
0.105
0.101
0.133
0.127
0.124
0.188
0.187
0.180
0.196
87.13
87.46
88.46
87.70
89.05
89.46
89.29
89.44
90.42
88.19
79
79
79
122
122
122
145
145
145
160 120
3-row
4-row
923
876
28.44
27.26
0.191
0.183
87.14
88.23
29.96
28.72
0.191
0.183
88.86
90.00
160
160
Note: Q/ITD = MBh (kW)/(Entering water temperature - Entering air temperature) when ∆T and gpm (L/s) remain constant. To determine heating capacities at a different entering water temperature or entering air temp, compute the new ITD and multiply it by the Q/ITD shown.
36 UNT-PRC001-EN
UNT-PRC001-EN.book Page 37 Tuesday, May 8, 2012 10:54 AM
Performance Data
Reheat Coils
Horizontal Concealed, Compact Concealed, Horizontal Cabinet, Horizontal Recessed, and
Vertical Recessed
The following performance data represents the 1-row hot water and steam reheat coils that are available on fan-coil units in conjunction with a 2-, 3-, or 4-row cooling coil.
Heating performance is based on 55°F entering air temperature, 180°F entering hot water temperature (hot water coil) or 2 psig and 5 psig entering steam pressure (steam coil) and a 15°F ΔT.
All performance measured on high speed tap, 115 V, 0.20 ESP, without filter. High static EC motor.
See
for performance groupings.
Table 29. High capacity hot water reheat coil with high static motor—high static EC motor
SIZE
020
030
040
060
080
100
4-row
2-row
3-row
4-row
2-row
3-row
4-row
2-row
3-row
4-row
Main
Cooling
Coil
2-row
3-row
4-row
2-row
3-row
4-row
2-row
3-row
Airflow
(cfm)
314
319
295
380
358
330
410
506
470
700
824
760
950
927
870
1199
1360
1276
Standard capacity hot water reheat coil
Total
Capacity
(MBh)
4.62
4.63
4.44
5.10
4.91
4.71
6.35
6.93
6.64
10.50
11.31
10.70
13.79
13.32
12.93
19.54
20.42
19.44
Q/ITD
0.037
0.037
0.036
0.041
0.039
0.038
0.051
0.055
0.053
0.084
0.090
0.086
0.110
0.107
0.103
0.156
0.163
0.156
Flow Rate
(gpm)
0.6
0.6
0.6
0.7
0.7
0.6
0.9
0.9
0.9
1.4
1.5
1.4
1.8
1.8
1.7
2.6
2.7
2.6
WPD
(ft H20)
0.09
0.09
0.09
0.11
0.10
0.10
0.19
0.22
0.21
0.60
0.69
0.62
1.17
1.10
1.04
2.98
3.22
2.95
High capacity hot water reheat coil
Total
Capacity
(MBh)
9.76
9.77
9.47
10.52
10.23
9.90
13.47
14.41
13.95
21.95
23.22
22.27
28.87
28.10
27.46
41.72
43.15
41.55
Q/ITD
0.078
0.078
0.076
0.084
0.082
0.079
0.108
0.115
0.112
0.176
0.186
0.178
0.231
0.225
0.220
0.334
0.345
0.332
Flow Rate
(gpm)
1.3
1.3
1.3
1.4
1.4
1.3
1.8
1.9
1.9
2.9
3.1
3.0
3.8
3.7
3.7
5.6
5.7
5.5
WPD
(ft H20)
0.35
0.35
0.33
0.39
0.38
0.35
0.72
0.81
0.77
2.21
2.45
2.27
4.33
4.13
3.96
11.49
12.21
11.41
Motor
Power
(W)
84
84
84
91
91
91
110
110
120 2-row
3-row
4-row
1330
1419
1330
20.57
20.85
19.85
0.165
0.167
0.159
2.7
2.8
2.6
3.26
3.34
3.06
43.40
43.86
42.22
0.347
0.351
0.338
5.8
5.8
5.6
12.34
12.57
11.75
314
314
314
Note:
Q/ITD = MBh (kW)/(Entering water temperature - Entering air temperature) when ∆T and gpm (L/s) remain constant. To determine heating capacities at a different entering water temperature or entering air temp, compute the new ITD and multiply it by the Q/ITD shown.
110
162
162
162
298
298
298
252
252
252
Table 30. High capacity hot water reheat coil with high static motor—high static EC motor
SIZE
020
030
040
Main Cooling
Coil
2-row
3-row
4-row
2-row
3-row
4-row
2-row
Airflow (cfm)
314
319
295
380
358
330
410
506
470
700
Total Capacity
(MBh)
8.88
8.89
8.55
9.78
9.42
9.04
11.79
2 PSIG
Q/ITD
0.060
0.060
0.057
0.066
0.063
0.061
0.079
0.086
0.083
0.126
Heating LAT (F)
83.20
83.17
84.07
81.08
81.88
82.78
83.28
81.40
82.30
81.52
Total Capacity
(MBh)
9.35
9.36
9.00
10.29
9.92
9.52
12.41
5 PSIG
Q/ITD
0.060
0.060
0.057
0.066
0.063
0.061
0.079
0.086
0.083
0.126
Heating LAT
(F)
84.69
84.66
85.61
82.46
83.29
84.25
84.78
Motor
Power (W)
84
84
84
91
91
91
110
060
080
100
3-row
4-row
2-row
3-row
4-row
2-row
3-row
4-row
2-row
3-row
4-row
824
760
950
927
870
1199
1360
1276
12.84
12.32
18.81
20.22
19.16
24.29
23.49
22.82
33.79
35.23
33.63
0.136
0.129
0.163
0.158
0.153
0.227
0.236
0.226
80.01
81.13
81.44
82.17
82.81
82.99
82.05
83.11
13.52
12.97
19.81
21.28
20.17
25.59
24.74
24.04
35.60
37.13
35.43
0.136
0.128
0.163
0.158
0.153
0.227
0.236
0.226
82.80
83.75
82.93
81.33
82.52
82.84
83.62
84.29
84.49
83.50
84.61
110
110
162
162
162
298
298
298
252
252
252
120 2-row
3-row
1330
1419
35.48
35.95
0.238
0.241
81.89
81.60
37.39
37.89
0.238
0.241
83.34
83.03
314
314
4-row 1330 34.30
0.230
82.65
36.13
0.230
84.14
314
Note: Q/ITD = MBh (kW)/(Entering water temperature - Entering air temperature) when ∆T and gpm (L/s) remain constant. To determine heating capacities at a different entering water temperature or entering air temp, compute the new ITD and multiply it by the Q/ITD shown.
UNT-PRC001-EN 37
UNT-PRC001-EN.book Page 38 Tuesday, May 8, 2012 10:54 AM
Performance Data
Reheat Coils
Vertical Concealed
The following performance data represents the 1-row hot water and steam reheat coils that are available on fan-coil units in conjunction with a 2-, 3-, or 4-row cooling coil.
Heating performance is based on 55°F entering air temperature, 180°F entering hot water temperature (hot water coil) or 2 psig and 5 psig entering steam pressure (steam coil) and a 15°F ΔT.
All performance measured on high speed tap, 115 V, 0.20 ESP, without filter. High static EC motor.
See
for performance groupings.
Table 31. High Static EC motor—high static EC motor
SIZE
020
030
040
060
Main
Cooling
Coil
2-row
3-row
4-row
2-row
3-row
4-row
2-row
3-row
4-row
2-row
3-row
4-row
Airflow
(cfm)
274
274
258
341
319
299
377
455
429
632
733
687
Standard capacity hot water reheat coil
Total
Capacity
(MBh) Q/ITD
Flow Rate
(gpm)
WPD
(ft H20)
4.32
4.30
4.17
4.85
4.66
4.50
6.09
6.62
6.38
9.99
10.72
10.23
0.035
0.034
0.033
0.039
0.037
0.036
0.049
0.053
0.051
0.080
0.086
0.082
0.6
0.6
0.6
0.7
0.6
0.6
0.8
0.9
0.9
1.3
1.4
1.4
0.08
0.08
0.08
0.10
0.10
0.09
0.18
0.21
0.19
0.55
0.62
0.57
High capacity hot water reheat coil
Total
Capacity
(MBh) Q/ITD
Flow Rate
(gpm)
WPD
(ft H20)
9.26
9.24
9.01
10.12
9.83
9.56
13.04
13.90
13.52
21.12
22.29
21.51
0.074
0.074
0.072
0.081
0.079
0.076
0.104
0.111
0.108
0.169
0.178
0.172
1.2
1.2
1.2
1.4
1.3
1.3
1.7
1.9
1.8
2.8
3.0
2.9
0.32
0.31
0.30
0.37
0.35
0.33
0.68
0.76
0.73
2.07
2.28
2.14
080
100
2-row
3-row
4-row
2-row
3-row
4-row
2-row
865
845
800
1089
1206
1145
1218
13.22
12.82
12.48
18.64
19.36
18.58
19.73
0.106
0.103
0.100
0.149
0.155
0.149
0.158
1.8
1.7
1.7
2.5
2.6
2.5
2.6
1.09
1.03
0.98
2.74
2.93
2.73
3.03
27.95
27.28
26.73
40.20
41.42
40.11
42.03
0.224
0.218
0.214
0.322
0.331
0.321
0.336
3.7
3.6
3.6
5.4
5.5
5.3
5.6
4.09
3.92
3.78
10.76
11.35
10.72
11.65
298
298
298
252
252
252
314 120
3-row
4-row
1291
1223
20.02
19.18
0.160
0.153
2.7
2.6
3.11
2.88
42.50
41.10
0.340
0.329
5.7
5.5
11.88
11.19
314
314
Note: Q/ITD = MBh (kW)/(Entering water temperature - Entering air temperature) when ∆T and gpm (L/s) remain constant. To determine heating capacities at a different entering water temperature or entering air temp, compute the new ITD and multiply it by the Q/ITD shown.
Motor
Power
(W)
84
84
84
91
91
91
110
110
110
162
162
162
Table 32. Steam coil performance—high static EC motor
2 PSIG 5 PSIG
SIZE
020
030
040
060
080
Main Cooling
Coil
2-row
3-row
4-row
2-row
3-row
4-row
2-row
3-row
4-row
2-row
3-row
4-row
2-row
3-row
4-row
Airflow (cfm)
274
274
258
341
319
299
377
455
429
632
733
687
865
845
800
Total Capacity
(MBh)
8.32
8.29
8.03
9.30
8.96
8.65
11.32
12.27
11.84
17.92
19.18
18.34
23.32
22.64
22.07
Q/ITD
0.056
0.056
0.054
0.062
0.060
0.058
0.076
0.082
0.079
0.120
0.129
0.123
0.157
0.152
0.148
Heating LAT (F)
84.71
84.80
85.55
82.16
83.00
83.79
84.21
82.39
83.18
82.59
81.10
82.08
82.33
83.00
83.58
Total Capacity
(MBh)
8.76
8.72
8.45
9.79
9.43
9.11
11.92
12.92
12.47
18.87
20.20
19.31
24.56
23.84
23.24
Q/ITD
0.056
0.056
0.054
0.062
0.060
0.058
0.076
0.082
0.079
0.120
0.129
0.123
0.156
0.152
0.148
Heating LAT
(F)
86.28
86.37
87.17
83.60
84.48
85.31
85.76
83.84
84.67
84.05
82.49
83.52
83.78
84.49
85.10
100
120
2-row
3-row
4-row
2-row
1089
1206
1145
1218
32.29
33.49
32.21
34.10
0.217
0.225
0.216
0.229
84.04
83.19
84.10
82.78
34.02
35.29
33.93
35.93
0.217
0.225
0.216
0.229
85.60
84.71
85.66
84.28
252
252
252
314
3-row
4-row
1291
1223
34.57
33.18
0.232
0.223
82.47
83.41
36.43
34.96
0.232
0.223
83.95
84.93
314
314
Note: Q/ITD = MBh (kW)/(Entering water temperature - Entering air temperature) when ∆T and gpm (L/s) remain constant. To determine heating capacities at a different entering water temperature or entering air temp, compute the new ITD and multiply it by the Q/ITD shown.
Motor
Power (W)
84
84
84
91
91
91
110
110
110
162
162
162
298
298
298
38 UNT-PRC001-EN
UNT-PRC001-EN.book Page 39 Tuesday, May 8, 2012 10:54 AM
Controls
ECM Engine Controller
The Electronically Commutated Motor (ECM) engine controls and reports the performance of up to two Trane Brushless DC (BLDC) motors.
Figure 2.
ECM engine controller
• The engine also coordinates the operation of the fan in response to electric heat behavior and electric behavior in response to hydronic heat behavior.
• The engine incorporates a user interface that allows adjustment of certain unit parameters and provides constant feedback on motor operation.
• The engine integrates service and troubleshooting tools.
• The engine integrates a versatile configurable auxiliary temperature sensor.
• The engine incorporates various safety and lockout features, such as maintaining proper fan speeds if electric heat is called for.
Status Display
Figure 3.
Status display
The ECM engine board contains a four-digit, seven-segment display that is used to present information in a format close to real-world language, while having a small-form factor. Most characters are immediately recognizable; however, please consult
and
graphical representation of each alphanumeric character.
Table 33. Screen representation of alphabetical characters
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Table 34. Screen representation of numeric characters
1
2
3
4
5
6
7
8
9
0
UNT-PRC001-EN 39
UNT-PRC001-EN.book Page 40 Tuesday, May 8, 2012 10:54 AM
Controls
Control Options
UniTrane fan-coils are available with four different control options:
• Manual three-speed fan switch
• Tracer ZN010
• Tracer ZN510
• Tracer ZN520
• Tracer UC400
Manual Fan Mode Switch
Model Number Digit 30 = A and Digit 31 = D or K
Figure 4.
Fan speed switch
40
Figure 5.
Adapter board
Note: Customer Low-Voltage Interface for
Fan Speeds, Variable Fan Speed, and
24 Vac Supply
UNT-PRC001-EN
UNT-PRC001-EN.book Page 41 Tuesday, May 8, 2012 10:54 AM
Controls
The adapter allows direct customer interfacing through the use of terminal strips. Standard interfacing includes:
• Fan Speeds (H, M, L) (for wall mounted fan speed switches)
• Variable speed (0–10V) inputs
The standard adapter board eliminates many separate wiring harnesses in the panel and allows simple, mistake-proofed single-plug interfacing of:
• The ECM engine controller
• Transformers
• Motors
• Valves
• Dampers
• Electric heat control
• Fan speed switches
• Main power (except electric heat)
The manual fan mode switch is available for fan-coil units that do not have Trane factory-mounted control packages. This four-position switch (off, high, medium, low) allows manual fan mode selection and is available unit or wall mounted. The unit-mounted option (Digit 31 = D) operates on line voltage. The wall-mounted option (Digit 31 = K) is low-voltage and has three 24-volt relays using a factory-wired transformer and relays to control the fan motor.
Customer Supplied Terminal Interface (CSTI)
Figure 6.
CSTI adapter board
Customer Low-Voltage Interface for
Valves, Electric Heat, Dampers, Fan
Speeds, Variable Fan Speed, and
24 Vac Supply
Valve(s), Electric Heat, and Changeover
Configuration Switches (Factory-Set)
UNT-PRC001-EN 41
UNT-PRC001-EN.book Page 42 Tuesday, May 8, 2012 10:54 AM
Controls
Figure 7.
CSTI adapter board field connections
3 2 1 13 12 11 10 9 8 7 6 5 4 3 2 1
1.
VSP 10V
2.
VSP 0–10V
3.
VSP DC COM
1.
24 Vac Y (hot)
2.
24 Vac Y (gnd)
3.
High
4.
Medium
5.
Low
6.
V1Op/Cooling
7.
V1C1 (not std)
8.
Not used
9.
Not used
10. V2Op/EH1St/Heating
11. V2C1/EH2St (not std)
12. Damper Open
13. Dmp Cl (not std)
The control interface is intended to be used with a field-supplied, low-voltage thermostat or controller. The control box contains a relay board which includes a line voltage to 24-volt transformer, quiet contactors (for electric heat units), and an optional disconnect switch. All end devices are wired to a low-voltage terminal block and are run-tested, so the only a power connection and thermostat connection is needed to commission the unit. Changeover sensors and controls are provided whenever a change-over coil is selected. When N.O. valves are selected, inverting relays are provided for use with standard thermostats.
The CSTI adapter board provides all the hookups of the standard adapter board, but in addition, provides hookups for valve control (main and auxiliary coils), electric heat control, and damper control. Screw terminal blocks provide convenient access to fan controls and to end device control.
In addition, a courtesy 10-Vdc supply is provided for use with an external potentiometer or rheostat.
The 10-Vdc supply supports up to 10 mA draw.
Tracer Controls
The Tracer family of controllers, ZN010, ZN510, ZN520, and UC400 offer the combined advantages of simple and dependable operation with the latest Trane-designed controller. Standard control features include options normally available on more elaborate control systems. All control options are available factory-configured or can be field-configured using Rover service software, the UC400 is services via Tracer TU. For more detailed information, refer to CNT-IOP-1 (for Tracer ZN010 or
ZN510) or CNT-SVX04A-EN (for Tracer ZN520), or the most recent version of the publication.
Tracer ZN010, Model Number Digit 30 = E
Figure 8.
Tracer ZN010 control board
42
Tracer ZN010 is a stand-alone microprocessor controller.
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Tracer ZN510, Model Number Digit 30 = F
Figure 9.
Tracer ZN510 control board
ZN510 can be used as either a stand-alone or communicating microprocessor controller.
Tracer ZN520, Model Number Digit 30 = G
The ZN520 controller can be used in a stand-alone application or as part of a Trane Integrated
Comfort™ System (ICS).
In the stand-alone configuration, ZN520 receives operation commands from the zone sensor and/ or the auto changeover sensor (on auto changeover units). The entering water temperature is read from the auto changeover sensor and determines if the unit is capable of cooling or heating. The zone sensor module is capable of transmitting the following information to the controller:
• Timed override on/cancel request
• Zone setpoint
• Current zone temperature
• Fan mode selection (off-auto-high-med-low)
For optimal system performance, fan-coil units can operate as part of an Integrated Comfort
System (ICS) building automation system controlled by Tracer Summit. The controller is linked directly to the Summit control panel via a twisted pair communication wire, requiring no additional interface device (i.e., a command unit). The Trane ICS system can monitor or override ZN520 control points. This includes such points as temperature and output positions.
Rover Service Software
This windows-based software package option allows field service personnel to easily monitor, save, download, and configure Tracer controllers through a communication link from a portable computer. When connected to the communication link, Rover can view any Tracer controller that is on the same communication link.
Tracer UC400, Model Number Digit 30 = J
Figure 10.
UNT-PRC001-EN
The UC400 single zone VAV controller can be used in a stand-alone application or as part of a Trane
Integrated Comfort™ System (ICS).
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Sequence of Operation
In the stand-alone configuration, UC400 receives operation commands from the zone sensor and/ or the auto changeover sensor (on auto changeover units). The entering water temperature is read from the auto changeover sensor and determines if the unit is capable of cooling or heating. The zone sensor module is capable of transmitting the following information to the controller:
• Timed override on/cancel request
• Zone setpoint
• Current zone temperature
• Fan mode selection (off-auto-high-med-low)
For optimal system performance, fan-coil units can operate as part of an Integrated Comfort
System (ICS) building automation system controlled by Tracer Summit. The controller is linked directly to the Summit control panel via a twisted pair communication wire, requiring no additional interface device (i.e., a command unit). The Trane ICS system can monitor or override UC400 control points. This includes such points as temperature and output positions.
Sequence of Operation
Fan Speed Switch
Off: Fan is turned off, two-position damper option spring-returns closed.
High, Medium, Low: Fan runs continuously at the selected speed. The two-position damper option opens to an adjustable mechanical stop-position.
Tracer ZN010 and ZN510
Off: Fan is off; control valves and fresh air damper option close. Low air temperature detection option is still active.
Auto (Fan Cycling): Fan and fresh air damper cycle with control valve option to maintain setpoint temperature. In cooling mode, the fan cycles from off to medium and in heating mode it cycles from off to low (factory default that can be field-adjusted using Rover service software). When no heating or cooling is required, the fan is off and the fresh air damper option closes. The fan can also be fieldconfigured (using Rover) to run at a defined speed when the fan speed switch is in the auto position.
Low, Medium, High (Continuous Fan): Fan operates continuously while control valve option cycles to maintain setpoint temperature. Fresh air damper option is open.
Tracer ZN520
Off: Fan is off; control valve options and fresh air damper options close. The low air temperature detection option is still active.
Auto: Fan speed control in the auto setting allows the modulating (three-wire floating point) control valve option and three-speed fan to work cooperatively to meet precise capacity requirements, while minimizing fan speed (motor/energy/acoustics/dehumidification) and valve position (pump energy/chilled water reset). As the capacity requirement increases at low fan speed, the water valve opens. When the low fan speed capacity switch point is reached, the fan switches to medium speed and the water valve repositions to maintain an equivalent capacity. The reverse sequence takes place with a decrease in required capacity.
Low, Medium, High: The fan will run continuously at the selected speed and the valve option will cycle to meet setpoint.
Tracer UC400
Occupied Mode
In Occupied Mode, the UC400 controller maintains the space temperature based on the occupied space temperature setpoint ± occupied offset. The controller uses the occupied mode as a default mode when other forms of occupancy request are not present and the fan runs continuously. The outdoor air damper, if present, will close when the fan is OFF. The temperature setpoints can be
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Sequence of Operation local (hard wired), communicated, or stored default values (configurable using the Tracer TU service tool).
Unoccupied Mode
In unoccupied mode, the UC400 controller attempts to maintain the space temperature based on the unoccupied heating or cooling setpoint. The fan will cycle between high speed and OFF. In addition, the outdoor air damper remains closed, unless economizing. The controller always uses the stored default setpoint values (configurable using the Tracer TU service tool), regardless of the presence of a hard wired or communicated setpoint value.
Timed Override Control
If the UC400 controller has a timed override option (ON/CANCEL buttons), pushing the ON button initiates a timed override on request. A timed override on request changes the occupancy mode from unoccupied mode to occupied bypass mode. In occupied bypass mode, the controller controls the space temperature based on the occupied heating or cooling setpoints. The occupied bypass time, which resides in the UC400 controller and defines the duration of the override, is configurable from 0 to 240 minutes (default value of 120 minutes). When the occupied bypass time expires, the unit transitions from occupied bypass mode to unoccupied mode. Pushing the
CANCEL button cancels the timed override request. In addition, it will end the timed override before the occupied bypass time has expired and transition the unit from occupied bypass mode to unoccupied mode.
If the controller is in any mode other than unoccupied mode when the ON button is pressed, the controller still starts the occupied bypass timer without changing to occupied bypass mode. If the controller is placed in unoccupied mode before the occupied bypass timer expires, the controller is placed into occupied bypass mode and remains in this mode until either the CANCEL button is pressed on the Trane zone sensor or the occupied bypass time expires.
Zone Temperature Control
The UC400 controller has three methods of zone temperature control:
• Cascade zone control—used in the occupied, occupied bypass, and occupied standby modes. It maintains zone temperature by controlling the discharge air temperature to control the zone temperature. The controller uses the difference between the measured zone temperature and the active zone temperature setpoint to produce a discharge air temperature setpoint. The controller compares the discharge air temperature setpoint with the discharge air temperature and calculates a unit heating/cooling capacity accordingly (refer to the illustration below). The end devices (outdoor air damper, valves, and so on) operate in sequence based on the unit heating/cooling capacity (0–100 percent).
Active zone temperature setpoint
Difference
Calculated discharge air temperature setpoint
Difference
Calculated unit heating/cooling capacity
UNT-PRC001-EN
Measured zone temperature
Measured discharge air temperature
If the discharge air temperature falls below the discharge air temperature low limit setpoint,
(configurable using the Tracer TU service tool), and the cooling capacity is at a minimum, the available heating capacity is used to raise the discharge air temperature to the low limit.
• Simplified zone control — if discharge air temperature failure occurs, then simplified zone controls runs. In the unoccupied mode, the controller maintains the zone temperature by
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Sequence of Operation calculating the required heating or cooling capacity (0–100%) according to the measured zone temperature and the active zone temperature setpoint. The active zone temperature setpoint is determined by the current operating modes, which include occupancy and heat/cool modes.
• Discharge air temperature control — is the backup mode that runs only if there is not valid zone temperature. In this mode, the active space temperature setpoint is used as the discharge air temperature setpoint.
Important: This is not a normal operating mode. The source of the invalid zone temperature needs to be corrected to restore normal operation.
Table 35. Controller input/output summary
ZN010 ZN510
Binary Outputs
3-Speed Fan
2-Position Hydronic Valve
2-Position Fresh Air Damper
1-Stage Electric Heat
3-Wire Economizer Damper
3-Wire Hydronic Valve
2-Stage Electric Heat
Reheat (hydronic or electric)
Generic
Binary Inputs
Condensate Overflow Detection
Low Temperature Detection
Occupancy
Generic Input
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
Analog Inputs
Zone Temperature
Setpoint
Fan Mode: Auto, High, Medium, Low
Entering Water
Discharge Air
Outside Air
Generic
X
X
X
X
X
X
X
X
X
X
Analog Outputs
Variable speed fan
Field supplied analog valves
Note: The generic input and output are for use with a Tracer Summit system only.
ZN520
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
**
X
X
X
X
X
X
**
X
X
UC400
X
X
X
X
X
**
X
X
X
X
Table 36. Controller function summary
ZN010 ZN510 ZN520 UC400
Control Functions
Entering Water Temp. Sampling (Purge)
Auto Changeover
Fan Cycling
Warm-Up
Pre-Cool
Data Sharing (Master/Slave)
Random Start
Dehumidification
Single Zone VAV
Staged Capacity (2-Stage Electric Supplementary)
Other Functions
Manual Test
Maintenance Timer
Setpoint Limits
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X in TU
X
X
** 'Generic' i/o - if there is unused i/o the user may create a new point to reference the i/o. But there is no dedicated 'generic' i/o like on ZN
Binary inputs -- there is also a defrost and fan status (for 1,2,3 speed fans) for UC400 and ZN520.
The ECM fan does not use the Binary input for fan status but gets the info over IMC from the ECM.
ZN520 also had a binary input for fan status. ZN520 also had defrost but it was wired directly to the compressor (IOP explains this).
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Zone Sensor Options
Zone Sensor Options
Zone sensors are available as either unit, wall, or split-mounted options for design flexibility. Fancoils with the unit-mounted zone sensor option include a thermistor in the unit’s return air path.
Wall-mounted zone sensor options have an internal thermistor. Zone sensors operate on 24 Vac.
Tracer ZN010 Options Tracer ZN510, ZN520, and UC400 Options
Figure 11. Unit-mounted zone sensor: Digit 30 = E and
Digit 31 = V
X13790843-01
Figure 12. Wall-mounted zone sensor: Digit 30 = F, G, or J and Digit 31 = 1
X13511530-01 (wall)
X13651467-02 (comm)
Figure 13. Wall-mounted zone sensor: Digit 30 = E and
Digit 31 = W
X13790841-01
Figure 14. Wall-mounted zone sensor: Digit 30 = F, G, or J and Digit 31 = 2
X13790842-01 (wall)
X13651467-02 (comm)
Figure 15. Split-mounted zone sensor, unit-mounted fan mode and wall-mounted setpoint dial:
Digit 30 = E and Digit 31 = X
X13511529-01 (wall)
X13790849-01 (unit)
Figure 16. Split-mounted zone sensor, unit-mounted fan mode and wall-mounted setpoint dial:
Digit 30 = F, G, or J and Digit 31 = Y
X13511527-01 (wall)
X13790849-01 (unit)
X13651467-02 (comm)
Figure 17. Unit-mounted zone sensor: Digit 30 = F, G, or J and Digit 31 = Z
X13790844-01
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Zone Sensor Options
Tracer ZN510, ZN520, and UC400 Options
(continued)
Figure 18. Wall-mounted digital zone sensor with setpoint adjustment: Digit 30 = F, G, or J and
Digit 31 = 4
X13790886-04 (wall)
Figure 19. Wireless zone sensor (setpoint adjustment, no fan speed adjustment): Digit 30 = F, G, or J and
Digit 31 = 6
X13790821-01 (wall)
X13790860-02 (unit)
Figure 20. Wireless zone sensor: Digit 30 = F, G, or J and
Digit 31 = 7
X13790822-04 (wall)
X13790860-02 (unit)
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Control Features
Control Features
The following control functions are standard features on units with Tracer ZN010, ZN510, ZN520, or UC400.
Entering Water Temperature Sampling Function
A system that uses a two-way control valve option might not sense the correct entering water temperature during long periods when the control valve is closed. If the demand for heating or cooling does not exist for a long period, the entering water will eventually approach ambient temperature.
Using the entering water temperature sampling function, the controller provides accurate two-pipe system changeover—without sacrificing the benefits of two-way control valves. Also, it eliminates inefficient bleed or bypass lines that can allow unnecessary waterflow through the system.
This function periodically samples the entering water temperature by opening the hydronic valve.
The valve opens for 20 seconds to allow the water temperature to stabilize. Then the controller reads the entering water temperature for up to three minutes to see if the correct water temperature is available for the selected operating mode.
The entering water temperature must be five degrees or more above the space temperature to allow hydronic heating and five degrees or more below the space temperature to allow hydronic cooling. If the correct water temperature for the operating mode is available, the unit begins normal heating or cooling operation. If the correct water temperature is not available, the controller closes the control valve and waits 60 minutes before attempting to sample the entering water temperature again.
A factory-mounted thermistor senses the entering water temperature on changeover cooling/heating coil units. If the fan-coil has a factory-mounted piping package, the sensor is strapped to the entering water pipe. If the fan-coil does not have a piping package, the sensor is coiled in the end pocket for mounting on customer-supplied piping. This sensor must detect accurate water temperature for proper changeover.
Automatic Heat/Cool Mode Determination
The controller automatically determines whether heating or cooling is needed—based on space and system conditions. Utilizing a proportional/integral (PI) control algorithm to maintain the space temperature at the active heating or cooling setpoint. The controller measures the space temperature and active setpoint temperature to determine the unit’s heating or cooling capacity
(zero to 100 percent).
Occupied/Unoccupied Operation
The occupancy input utilizes a binary switch (i.e. motion sensor, timeclock, etc.) that allows the zone sensor to utilize its unoccupied internal setpoints.
Random Start
This feature randomly staggers multiple unit start-up to reduce electrical demand spikes.
Warm-up
The two-position fresh air damper option closes during the occupied mode when the space temperature is three degrees or more below the heating setpoint temperature. The damper remains closed during warm-up until the space temperature is within two degrees of the heating setpoint temperature.
Cool-down
The two-position fresh air damper option closes during the occupied mode when the space temperature is three degrees or more above the cooling setpoint temperature. The damper remains closed during cool-down until the space temperature is within two degrees of the cooling setpoint temperature.
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Control Features
Manual Output Test Function
NA on UC400. But will have ability through TU. This feature is an invaluable tool for troubleshooting a unit. By simply pressing the controller’s test button, service personnel can manually exercise outputs in a pre-defined sequence.
Peer to Peer Communication (Tracer ZN510, ZN520, and UC400)
Peer to peer communication allows multiple units in one space to share the same zone sensor and provide simultaneous heating and cooling. The Tracer ZN510 or ZN520 controller can share information between units on the same communication link using a twisted pair wire in the field.
Unit configuration must be modified with Rover service tool. On the UC400, zone sensor data sharing can be accomplished by use of the BAS system controller.
Economizing Control (Tracer ZN520)
With the controller configured for economizing control, it will calculate the required cooling capacity every ten seconds and modulate the damper option open to the calculated position. If the setpoint is not satisfied, the damper will continue to open until the setpoint condition has been met or the damper is 100 percent open. If this still does not satisfy the setpoint, the cooling valve option will begin to open and try to satisfy the load requirements. Once capacity exceeds the load requirements, the valve will begin to close until the setpoint has been reached or the damper reaches its minimum position, which is field-adjustable. This option uses a three-wire, floating point damper actuator.
A thermistor to sense discharge air is factory mounted near the discharge surface of the last coil for use in economizing and cascade temperature control. Tracer Summit can also utilize this temperature value as a read-only point. Cascade temperature control uses both the zone and discharge air temperatures to more accurately calculate the required unit capacity.
A thermistor to sense fresh air is factory mounted at the unit’s fresh air opening for use in economizer applications or as a read-only point for Tracer Summit. If the fresh air temperature is a read-only value, it will not impact the control algorithm. In an economizer application, a fresh air temperature signal must be provided either by this thermistor or Tracer Summit.
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Tracer ZN520 and UC400 Additional Features
Tracer ZN520 and UC400 Additional Features
Automatic Fan Speed Adjustment
When configured in the AUTO mode, the fan operates at the lowest speed possible (high, medium, or low) to maintain space temperature. As the cooling load decreases, the controller switches the fan to operate at the next lower speed, and the control valve modulates the unit’s cooling capacity as required. This results in less fan energy use, improved dehumidification performance, and lower sound levels.
Automatic Ventilation Reset
To ensure proper ventilation rates, the controller is configured with two fresh air damper minimum position setpoints for occupied operation. As the fan speed changes to low or high, the damper adjusts to maintain the correct ventilation rate for the space. The damper position does not adjust when the fan speed changes to medium.
Fan Status
Tracer ZN520 and UC400 monitors the fan output status to determine if the fan is operating.
Filter Maintenance Status
The controller has an adjustable timer that indicates through Summit, Rover (ZN520) or TU (UC400) when filter maintenance is necessary. Filter maintenance status is based on cumulative fan run hours.
Dehumidification
When the fan-coil unit is equipped with a reheat coil and humidity sensor, the controller will independently control both space temperature and humidity. If the space humidity level rises above the upper limit, the capacity of the cooling coil is increased, overcooling the air to maintain the space humidity below the upper limit. Then, the capacity of the heating coil modulates, adding a small amount of heat to temper (reheat) the air and avoid overcooling the space.
Water Valve Override
The water valve override function drives all water valves in every unit fully open simultaneously.
This helps reduce the time required for waterside balancing.
Cascade Control
The controller maintains discharge air temperature using a cascade control algorithm. The discharge air temperature is based on the difference between the space temperature and setpoint.
Unit capacity modulates to achieve the discharge air temperature.
Interoperability
Tracer ZN520 can be used with a Tracer Summit system or on other control systems that support
LonTalk and the SCC profile. For more information on specific inputs and outputs, see the
Installation, Owner, and Maintenance Manual, UNT-IOM-6. UC400 can be used with a Tracer
Summit system or other control systems that support BACnet. For more information on specific inputs and outputs, see the Installation, Owner, and Maintenance Manual, UNT-SVX07D-EN.
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End Device Options
End Device Options
All end device options are factory-installed and -tested.
Figure 21. Control valve
Two-Position Control Valves, Model Number Digits 27 and 28 = A - H
Two-position valve options are available with either Tracer ZN010, ZN510, ZN520 or UC400. Valves are spring-return type, sweat connections, and available as normally open or closed. The valves respond to a 24 V signal and have 1/2-inch sweat connections. The two-way valve option will either fully open or close. The three-way valve option allows either full water flow through the coil or diverts waterflow through the bypass. If the control valve loses power, the valve returns to its deenergized position. All control valve options are factory installed in the leaving water piping downstream of the hydronic coil. The valve actuator is easily removable for service without removing the valve body from piping.
Modulating Control Valves (Tracer ZN520 and UC400), Model Number Digits 27 and 28 = J - R
These 1/2-inch sweat connect valves are three-wire floating point valves, equal percentage type.
Modulating valves are available in four Cv sizes: 0.7, 1.5, 2.5, and 4.0. The valve responds to a 24 V triac signal from the controller, which determines the valve position by a control algorithm. If the valve loses power, it remains in the position that it was in when the power loss occurred. All control valves are factory installed in the leaving water piping downstream of the hydronic coil.
Field-Supplied Valves, Model Number Digits 27 and 28 = X, Y, or 1
This option allows the controller to be factory-configured for the normal position of the fieldsupplied valve, as well as running a wiring harness from the control box to the piping side of the unit. When the field supplied valve option is chosen, the control box is provided with low voltage components and wired back to a terminal strip (CSTI) or controller.
Note: The Trane Company does not recommend wild coil applications.
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Figure 22. Wiring harness
Controls
End Device Options
UNT-PRC001-EN
Two-Position Fresh Air Damper Actuator, Model Number Digit 13 = D, E, or F
(Available with all control options except ZN520)
Figure 23. Two-position fresh air damper actuator
This damper actuator uses a 24 V signal and is factory-wired and mounted to the damper assembly.
It allows zero to 50 percent fresh air. The damper will drive open to an adjustable mechanical stopposition whenever the fan is running during occupied mode and will spring-return closed when the fan turns off.
Note: Trane recommends using the low temperature detection option with fresh air dampers to detect possible freeze conditions.
Economizer Fresh Air Damper Actuator (Tracer ZN520 and UC400), Model
Number
Digit 13 = G, H, or J
Figure 24. Economizer fresh air damper actuator
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End Device Options
This option is a three-wire floating point, spring-return damper actuator and is factory-wired and mounted to the damper assembly. When the controller enables the economizer and the unit is in occupied mode, the fresh air damper modulates between its minimum position (editable) and the full open position to maintain setpoint temperature. If economizer operation stops or if the unit is in the heating mode, the fresh air damper adjusts to its minimum position.
Note: Trane highly recommends using the low temperature detection option with a fresh air damper to detect possible freeze conditions.
Low Temperature Detection, Model Number Digit 36 = 2
Figure 25. Low temperature detection device
When the low temperature detection device senses an entering air temperature of 36°F to the hydronic coil, the normally-closed switch opens a corresponding set of binary input terminals. The fan disables, control valves open, and the fresh air damper closes.
Thirty minutes after the diagnostic, Tracer ZN010, ZN510, or ZN520 uses an automatic reset function to attempt to reset the unit. If the diagnostic occurs again within 24 hours after an automatic diagnostic reset, the unit will require a manual reset. This function attempts to resolve the infrequent nuisance alarm.
The low temperature detection device is an averaging type capillary tube and will reset when it detects an entering air temperature of at least 44°F.
Condensate Overflow Detection, Model Number Digit 35 = 2
Figure 26. Condensate overflow detection device
54
A float switch is factory-supplied for field installation in the auxiliary drain pan to detect a high condensate water level. When the float switch rises, the normally closed input opens a corresponding set of binary input terminals. This also causes the fan to disable, and the control valve and fresh air damper options to close. Although the float switch will close when the high condensate level recedes, the controller must be manually reset before normal unit operation can occur. If using a Tracer ZN510, ZN520 or UC400 controller you can reset using Tracer Summit. Use
Rover service software to reset units with Tracer ZN010, ZN510, or ZN520 and Tracer TU for units with a UC400.
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Electrical Data
UNT-PRC001-EN
Table 37. Electric heat (kW)
Unit Size
02
03
04
06
08
10
12
115
230
277
208
115
230
277
208
115
230
277
208
115
230
277
208
115
230
277
208
115
230
277
208
115
230
277
208
Unit Voltage kW kW kW kW kW kW kW kW kW kW kW
1.0
1.0
1.0
0.8
1.0
1.0
1.0
0.8
1.5
1.5
1.5
1.1
1.5
1.5
1.5
1.1
2.0
2.0
2.0
1.5
2.0
2.0
2.0
1.5
2.0
2.0
2.0
1.5
2.0
2.0
2.0
1.5
2.0
2.0
2.0
1.5
1.9
2.5
2.5
2.5
1.9
2.5
2.5
2.5
1.9
3.0
3.0
3.0
2.3
3.0
3.0
3.0
2.3
2.3
3.0
3.0
3.0
2.3
3.0
3.0
3.0
2.3
3.0
3.0
3.0
2.3
3.0
4.0
4.0
3.0
4.0
4.0
3.0
4.0
4.0
3.0
4.0
4.0
3.0
5.0
5.0
3.8
5.0
5.0
3.8
5.0
5.0
3.8
5.0
5.0
3.8
6.0
6.0
4.5
6.0
6.0
4.5
6.0
6.0
4.5
6.0
6.0
4.5
5.3
7.0
7.0
5.3
7.0
7.0
5.3
7.0
7.0
5.3
6.0
8.0
8.0
6.0
8.0
8.0
6.0
10.0
10.0
Table 38. Electric heat (kW), low vertical units
Unit Size Unit Voltage kW kW kW
03
04
115
115
1.0
1.0
1.5
1.5
2.0
2.0
06 115 1.0
1.5
2.0
Note:
Low vertical units are only available with electric heat in combination with the two-row cooling coil. kW
2.5
2.5
Minimum Circuit Ampacity (MCA) and Maximum Fuse Size (MFS) Calculations for Fan-Coils with Electric Heat (Single Phase)
Heater Amps = (Heater kW x 1000)/Heater Voltage
Note: Use 120 V heater voltage for 115 V units. Use 240 V heater voltage for 230 V 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)
HACR (Heating, Air-Conditioning and Refrigeration) type circuit breakers are required in the branch circuit wiring for all fan-coils with electric heat.
See
Table 39, p. 56 through Table 41, p. 56 for motor FLAs.
Select a standard fuse size or HACR type circuit breaker equal to the MCA.
Use the next larger standard size if the MCA does not equal a standard size.
Standard Fuse Sizes are: 15, 20, 25, 30, 35, 40, 45, 50, 60 amps
Fan-coil electric heat MBh = (Heater kW) (3.413)
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Electrical Data
Table 39. Free discharge and High static electrically commutated motors (ECMs) programmed to standard ECM mode
Unit Size
2
6
8
3
4
10
12
1
3.1
3.1
3.1
3.1
3.1
3.1
3.1
FLA
115 Volt
2
3.1
3.1
1
0.22
0.22
0.22
0.22
0.22
0.22
0.22
HP
2
0.22
0.22
1.8
1.8
1.8
1.8
1.8
1.8
1
1.8
208–230 Volt
FLA HP
2 1
0.22
1.8
1.8
0.22
0.22
0.22
0.22
0.22
0.22
2
0.22
0.22
1
1.6
1.6
1.6
1.6
1.6
1.6
1.6
FLA
277 Volt
2 1
0.24)
HP
1.6
1.6
0.24
0.24
0.24
0.24
0.24
0.24
2
0.24
0.24
Table 40. Free discharge electrically commutated motors (ECMs) programmed to reduced FLA mode
Unit Size
6
8
10
12
2
3
4
1
0.6
0.6
0.8
1.1
1.6
0.7
0.7
FLA
115 Volt
2
1.2
1.3
1
0.22
0.22
0.22
0.22
0.22
0.22
0.22
HP
2
0.22
0.22
1
0.4
0.4
0.6
0.8
1.1
0.5
0.5
208–230 Volt
FLA HP
2 1
0.8
0.9
0.22
0.22
0.22
0.22
0.22
0.22
0.22
2
0.22
0.22
1
0.3
0.3
0.4
0.6
0.8
0.4
0.4
FLA
277 Volt
2
0.6
0.7
1
0.24
0.24
0.24
0.24
0.24
0.24
0.24
HP
2
0.24
0.24
Table 41. High static electrically commutated motors (ECMs) programmed to reduced FLA mode
Unit Size
8
10
12
4
6
2
3
1
1.3
1.3
1.7
2.3
3.1
1.4
1.5
FLA
115 Volt
2
2
2.8
1
0.22
0.22
0.22
0.22
0.22
0.22
0.22
HP
2
0.22
0.22
1
0.9
0.9
1.2
1.6
1.8
1
1.1
208–230 Volt
FLA HP
2 1
1.4
1.8
0.22
0.22
0.22
0.22
0.22
0.22
0.22
2
0.22
0.22
1
0.7
0.7
0.9
1.2
1.5
0.7
0.8
FLA
277 Volt
2
1.1
1.4
1
0.24
0.24
0.24
0.24
0.24
0.24
0.24
HP
2
0.24
0.24
Table 42. Low vertical free discharge electrically commutated motors (ECMs)
Unit Size
3
115 Volt
FLA
3.1
HP H
0.22 1090
4
6
3.1
3.1
0.22
0.22
1090
1115
Note:
Actual rpm will vary with application and configuration.
RPM
M
770
750
760
L
560
560
560
56 UNT-PRC001-EN
UNT-PRC001-EN.book Page 57 Tuesday, May 8, 2012 10:54 AM
Electrical Data
Table 43. Lowboy vertical free discharge electrically commutated motors (ECMs) programmed with reduced FLA mode
Unit Size FLA
115 Volt
HP H
3
4
0.5
0.8
0.22
0.22
1090
1090
6 1 0.22
1115
Note:
Actual rpm will vary with application and configuration.
RPM
M
770
750
760
L
560
560
560
Table 44. Unit RPM
Unit
Size
4
6
2
3
8
10
12
Free Discharge—Units with 2-Row Coils Free Discharge—Units with 3- and 4-Row Coils
H M L H M L
980
980
1050
1030
840
780
780
780
655
580
580
580
980
1080
1080
1080
840
800
800
800
655
600
600
600
1080
1050
1030
1050
1080
800
780
780
780
800
600
580
580
580
600
1080
1080
1080
1080
1080
800
800
800
800
800
600
600
600
600
600
Unit
Size
4
6
2
3
8
High Static—Units with 2-Row Coils
H
1480
1400
1475
1400
1475
M
1110
1175
1315
1070
1285
L
865
860
1070
855
975
10
12
1475
1400
1475
1475
1315
1070
1315
1285
1070
855
1070
975
Note:
Actual rpm will vary with application and configuration.
High Static—Units with 3- and 4-Row Coils
H M L
1480
1500
1580
1475
1475
1110
1355
1375
1285
1285
865
1110
1240
975
975
1580
1475
1580
1475
1375
1285
1375
1285
1240
975
1240
975
Minimum Circuit Ampacity (MCA) and Maximum Fuse Size (MFS) Calculations for Fan-Coils: (Motors only, No Electric Heat)
MCA = (1.25) x [Largest Motor Amperes (FLA)] + Second Motor Amperes (FLA) (Size 10 and 12 only)
MFS or HACR
1
Type Circuit Breaker = 15 Amps for all Fan-Coils without Electric Heat (see previous
Electrical Data for units with Electric Heat.)
UNT-PRC001-EN
1 HACR (Heating, Air-Conditioning and Refrigeration) type circuit breakers are required in the branch circuit wiring for all size 10 and
12 fan-coils.
57
UNT-PRC001-EN.book Page 58 Tuesday, May 8, 2012 10:54 AM
Dimensions and Weights
Unit Weights
Table 45. Operating weights, lb
Unit Size
02
08
10
12
03
04
06
Cabinet Models
97
97
125
155
164
218
218
Concealed Models
81
81
109
139
147
200
200
Recessed Models
78
78
88
128
139
253
253
Low Vertical Cabinet
Models
NA
Low Vertical
Concealed Models
NA
125 109
155 139
164 147
NA
NA
NA
NA
NA
NA
Table 46. Shipping weights, lb
Unit Size
02
03
04
06
08
10
12
Cabinet Models
84
84
112
139
148
200
200
Concealed Models
68
68
96
123
131
182
182
Recessed Models
68
68
78
118
129
243
243
Low Vertical Cabinet
Models
NA
112
139
148
NA
NA
NA
Low Vertical
Concealed Models
NA
96
123
131
NA
NA
NA
58 UNT-PRC001-EN
UNT-PRC001-EN.book Page 59 Tuesday, May 8, 2012 10:54 AM
Vertical Concealed, Model A
Dimensions and Weights
Vertical Concealed
UNT-PRC001-EN
Vertical Concealed Unit Dimensions
Unit Size 200-300 400 600 800 1000-1200
No. of Fans
No. of Motors
A
B
C
D
E
1
1
1
1
2
1
2
1
3
2
2’-8 11/16” 3’-1 11/16” 3’-11 3/16” 4’-7 11/16” 6’-2 11/16”
1’-9 5/16” 2’-2 5/16” 2’-11 13/16” 3’-8 5/16” 5’-3 5/16”
1’-10 13/16” 2’-3 13/16” 3’-1 5/16” 3’-9 13/16” 5’-4 13/16”
1’-5 5/16” 1’-10 5/16” 2’-7 13/16” 3’-4 5/16” 4’-11 5/16”
1’-7 5/16” 2’-0 5/16” 2’-9 13/16” 3’-6 5/16” 5’-1 5/16”
Notes:
1. Coil connections are always on the drain pan side and opposite the control box.
2. Coil connections are 5/8” O.D. sweat. See p. 69
for locations.
3. All duct collar dimensions are to the outside of the collar.
4. See
for dimensions for outside air openings.
59
UNT-PRC001-EN.book Page 60 Tuesday, May 8, 2012 10:54 AM
Dimensions and Weights
Vertical Cabinet
Vertical Cabinet, Model B
60
Vertical Cabinet Unit Dimensions
Unit Size 200-300 400
No. of Fans
No. of Motors
A
B
C
D
E
F
600 800
1
1
2’-9 5/16”
1’-9 5/16”
1
1
2
1
2
1
3’-2 5/16” 3’-11 13/16” 4’-8 5/16”
2’-2 5/16” 2’-11 13/16” 3’-8 5/16”
7 5/8”
1’-16”
7 1/8”
2’-0”
8 7/8”
2’-6”
7 1/8”
3’-6”
1’-7 5/16” 2’-0 5/16” 2’-9 13/16” 3’-6 5/16”
3’-5 5/16” 3’-10 5/16” 4’-7 13/16” 5’-4 5/16”
1000-1200
3
2
6’-3 5/16”
5’-3 5/16”
7 5/8”
5’-0”
5’-1 5/16”
6’-11 5/16”
Notes:
1. Coil connections are always on the drain pan side and opposite the control box and unit control.
2. Coil connections are 5/8” O.D. sweat. See p. 69 for locations.
for dimensions for outside air openings.
UNT-PRC001-EN
UNT-PRC001-EN.book Page 61 Tuesday, May 8, 2012 10:54 AM
Horizontal Concealed, Model C
Dimensions and Weights
Horizontal Concealed
UNT-PRC001-EN
Horizontal Concealed Unit Dimensions
Unit Size 200-300 400 600 800 1000-1200
No. of Fans
No. of Motors
A
B
C
1
1
1
1
2
1
2
1
3
2
2’-8 11/16” 3’-1 11/16” 3’-11 3/16” 4’-7 11/16” 6’-2 11/16”
1’-9 5/16” 2’-2 5/16” 2’-11 13/16” 3’-8 5/16” 5’-3 5/16”
1’-10 13/16” 2’-3 13/16” 3’-1 5/16” 3’-9 13/16” 5’-4 13/16”
D
E
F
1’-7 3/8”
1’-6 1/8”
1’-7 5/16”
2’-0 3/8”
1’-11 1/8”
2’-9 7/8”
2’-8 5/8”
3’-6 3/8”
3’-5 1/8”
2’-0 5/16” 2’-9 13/16” 3’-6 5/16”
5’-1 3/8”
5’-0 1/8”
5’-1 5/16”
Notes:
1. Coil connections are always on the drain pan side and opposite the control box.
2. Coil connections are 5/8” O.D. sweat. See p. 69 for locations.
3. All duct collar dimensions are to the outside of the collar.
for dimensions for outside air openings.
61
UNT-PRC001-EN.book Page 62 Tuesday, May 8, 2012 10:54 AM
Dimensions and Weights
Horizontal Cabinet
Horizontal Cabinet, Model D
62
Horizontal Cabinet Unit Dimensions
Unit Size 200-300 400 600
No. of Fans
No. of Motors
A
B
C
D
E
F
G
H
J
1
1
2’-9 5/16”
1’-9 5/16”
7 5/8”
1’-6”
1’-5 1/4”
3’-5 1/4”
8-5/8”
1’-4”
1’-7 3/4”
800
1 2 2
1 1 1
3’-2 5/16” 3’-11 3/16” 4’-8 5/16”
2’-2 5/16” 2’-11 13/16” 3’-8 5/16”
7 1/8” 8 7/8” 7 1/8”
2’-0”
1’-10 1/4”
2’-6”
2’-7 3/4”
3’-6”
3’-4 1/4”
3’-10 5/16” 4’-7 3/16”
8-1/8” 9-7/8”
1’-10”
1’-11 3/4”
2’-4”
2’-7 3/4”
5’-4 5/16”
8-1/8”
3’-4”
3’-3 3/4”
1000-1200
3
2
6’-3 5/16”
5’-3 5/16”
7 5/8”
5’-0”
3’-4 1/4”
6’-11 5/16”
8-5/8”
4’-10”
4’-11 3/4”
Notes:
1. Coil connections are always on the drain pan side and opposite the control box.
2. Coil connections are 5/8” O.D. sweat. See
3. All duct collar dimensions are to the outside of the collar.
4. See p. 70 for dimensions for outside air openings.
UNT-PRC001-EN
UNT-PRC001-EN.book Page 63 Tuesday, May 8, 2012 10:54 AM
Horizontal Recessed, Model E
Dimensions and Weights
Horizontal Recessed
UNT-PRC001-EN
Horizontal Recessed Unit Dimensions
Unit Size 200-300 400 600 800 1000-1200
No. of Fans
No. of Motors
A
1 1 2 2 3
1 1 1 1 2
2’-11 13/16” 3’-4 13/16” 4’-2 5/16” 4’-10 13/16” 6’-5 13/16”
F
G
H
B
C
D
E
1’-9 5/16” 2’-2 5/16” 2’-11 13/16” 3’-8 5/16” 5’-3 5/16”
1’-10 13/16” 2’-3 13/16” 3’-1 5/16” 3’-9 13/16” 5’-4 13/16”
1’-7 3/8”
1’-6 1/8”
1’-7 3/4”
2’-0 3/8”
1’-11 1/8”
1’-11 3/4”
2’-9 7/8”
2’-8 5/8”
2’-7 3/4”
3’-6 3/8”
3’-5 1/8”
2’-8 7/16” 3’-1 7/16” 3’-10 15/16” 4’-7 7/16”
2’-10 5/16” 3’-3 5/16” 4’-0 13/16” 4’-9 5/16”
3’-3 3/4”
5’-1 3/8”
5’-0 1/8”
6’-2 7/16”
6’-4 5/16”
4’-11 3/4”
Notes:
1. Coil connections are always on the drain pan side.
2. Coil connections are 5/8” O.D. sweat. See p. 69
for locations.
3. All duct collar dimensions are to the outside of the collar.
4. See
for dimensions for outside air openings.
63
UNT-PRC001-EN.book Page 64 Tuesday, May 8, 2012 10:54 AM
Dimensions and Weights
Vertical Recessed
Vertical Recessed, Model H
Vertical Recessed Unit Dimensions
Unit Size 200-300
No. of Fans 1
400
1
600
2
800
2
1000-1200
3
No. of Motors
A
B
C
D
1 1 1 1
2’-8 11/16” 3’-1 11/16” 3’-11 3/16” 4’-7 11/16”
2
6’-2 11/16”
1’-9 5/16” 2’-2 5/16” 2’-11 13/16” 3’-8 5/16” 5’-3 5/16”
1’-10 13/16” 2’-3 13/16” 3’-1 5/16” 3’-9 13/16” 5’-4 13/16”
1’-5 5/16” 1’-10 5/16” 2’-7 13/16” 3’-4 5/16” 4’-11 5/16”
G
H
E
F
J
3’-11”
2’-6”
2 3/8”
3’-6”
2’-2 1/2”
4’-3”
2’-6”
2 3/8”
4’-0”
2’-2 1/2”
5’-3”
2’-6”
2 3/8”
4’-9”
2’-2 1/2”
5’-5 1/2”
2’-9 1/2”
4 1/8”
5’-3”
2’-3 1/2”
7’-5 1/2”
2’-9 1/2”
4 1/8”
7’-3”
2’-3 1/2”
Notes:
1. Coil connections are always on the drain pan side and opposite the control box.
2. Coil connections are 5/8” O.D. sweat. See p. 69
for locations.
3. All duct collar dimensions are to the outside of the collar.
4. See
for dimensions for outside air openings.
64 UNT-PRC001-EN
UNT-PRC001-EN.book Page 65 Tuesday, May 8, 2012 10:54 AM
Vertical Slope Top, Model J
Dimensions and Weights
Vertical Slope Top
UNT-PRC001-EN
Vertical Slope Top Unit Dimensions
Unit Size 200-300 400 600
No. of Fans
No. of Motors
A
B
C
D
E
F
800
1
1
2’-9 5/16”
1’-9 5/16”
7 5/8”
1’-6”
1
1
2
1
2
1
3’-2 5/16” 3’-11 13/16” 4’-8 5/16”
2’-2 5/16” 2’-11 13/16” 3’-8 5/16”
7 1/8”
2’-0”
8 7/8”
2’-6”
7 1/8”
3’-6”
1’-7 5/16” 2’-0 5/16” 2’-9 13/16” 3’-6 5/16”
3’-5 5/16” 3’-10 5/16” 4’-7 13/16” 5’-4 5/16”
1000-1200
3
2
6’-3 5/16”
5’-3 5/16”
7 5/8”
5’-0”
5’-1 5/16”
6’-11 5/16”
Notes:
1. Coil connections are always on the drain pan side and opposite the control box and unit control.
2. Coil connections are 5/8” O.D. sweat. See p. 69 for locations.
for dimensions for outside air openings.
65
UNT-PRC001-EN.book Page 66 Tuesday, May 8, 2012 10:54 AM
Dimensions and Weights
Low Vertical Concealed
Low Vertical Concealed, Model K
66
Low Vertical Concealed Unit Dimensions
Unit Size 300 400 600
C
D
A
B
E
3’-4 5/8”
2’-2 1/4”
4’-2 1/8”
2’-11 3/4”
4’-10 7/8”
3’-8 1/4”
2’-3 15/16” 3’-0 13/16” 3’-9 15/16”
1’-10 5/16” 2’-7 13/16” 3’-4 5/16”
2’-0 1/4” 2’-9 3/4” 3’-6 1/4”
Notes:
1. Coil connections are always on the drain pan side and opposite the control box.
2. Coil connections are 5/8” O.D. sweat.
CS Cooling Coil Supply
CR Cooling Coil Return
HS Heating Coil Supply
HR Heating Coil Return
3. All duct collar dimensions are to the outside of the collar.
for dimensions for outside air openings.
UNT-PRC001-EN
UNT-PRC001-EN.book Page 67 Tuesday, May 8, 2012 10:54 AM
Low Vertical Cabinet, Model L
Dimensions and Weights
Low Vertical Cabinet
UNT-PRC001-EN
Low Vertical Cabinet Unit Dimensions
Unit Size 300 400 600
C
D
E
A
B
3’-10 15/16” 4’-8 7/16” 5’-4 15/16”
2’-2 1/4” 2’-11 3/4” 3’-8 1/4”
11 7/16”
2’-0”
2’-0 1/4”
1’-1 5/16”
2’-6”
2’-9 3/4”
11 7/16”
3’-6”
3’-6 1/4”
Notes:
1. Coil connections are always on the drain pan side and opposite the control box.
2. Coil connections are 5/8” O.D. sweat.
CS Cooling Coil Supply
CR Cooling Coil Return
HS Heating Coil Supply
HR Heating Coil Return
for dimensions for outside air openings.
67
UNT-PRC001-EN.book Page 68 Tuesday, May 8, 2012 10:54 AM
Dimensions and Weights
Compact Concealed
Compact Concealed, Model P
TOP VIEW 2-5/16” E
BACK INLET DUCT COLLAR
9/16” 9/16”
15-1/2”
7/8” KO
CONTROL
WIRING
CONTROL
BOX
3-1/4”
2”
FRONT VIEW
RH PIPING
6-15/16”
3/4”
6-5/8”
2-5/16”
4-9/16”
FRONT VIEW
LH PIPING
1-1/8”
COIL CONNECTIONS
AUXILIARY
DRAIN PAN
1-3/4” 1-3/4”
B
C
D
1-11/16”
(4) 5/8” DIA KEYSLOT
HANGER HOLES
1-11/16”
FRONT OUTLET
DUCT COLLAR
1-3/32” KO
7/8” KO
A
POWER
WIRING
BOTTOM
ONLY
2-5/16”
3-1/4”
(4) 5/8” DIA KEYSLOT
HANGER HOLES
SECONDARY DRAIN
CONNECTION FOR
3/8” ID TUBE
MAIN DRAIN (OPTIONAL)
CONNECTION FOR
7/8” OD COPPER
TUBE AND CLAMP
SIDE VIEW
INLET OPTIONS
1" DUCT COLLAR
5/8”
6-1/8”
14-1/8”
3/4”
6-3/8”
2-7/16”
5-5/16”
8-7/8”
FILTER DOOR USED
WITH BACK DUCT
COLLAR ONLY
27-3/16”
BACK DUCT COLLAR
5/8”
1” DUCT COLLAR
AIR
FLOW
BACK INLET
DUCT COLLAR
10-1/16”
4-7/8” X F
26-3/4”
BOTTOM INLET
OPEN
CONTROL
BOX
Compact Concealed Unit Dimensions
Unit Size 200-300 400 600
A
B
C
D
E
F
32-11/16”
21-5/16”
22-13/16”
19-3/8”
18-1/8”
19-5/16”
37-11/16”
26-5/16”
27-13/16”
24-3/8”
23-1/8”
24-5/16”
47-3/16”
35-13/16”
37-5/16”
33-7/8”
32-5/8”
33-13/16”
800
55-11/16”
44-5/16”
45-13/16”
42-3/8”
41-1/8”
42-5/16”
1000-1200
74-11/16”
63-5/16”
64-13/16”
61-3/8”
60-1/8”
61-5/16”
Notes:
1. Coil connections are always on the drain pan side and opposite the control box and unit control.
2. Coil connections are 5/8” O.D. sweat. See p. 69 for locations.
3. All duct collar dimensions are to the outside of the collar.
for dimensions for outside air openings.
68 UNT-PRC001-EN
UNT-PRC001-EN.book Page 69 Tuesday, May 8, 2012 10:54 AM
Dimensions and Weights
Coil Connections
Coil Connections, Vertical Units
8-3/16" RHR
5-5/16" CS
4-7/8" RHS
4-3/8" CR
2-5/16" HR
RMS = Reheat Supply
HR = Hot Water Return
HS = Hot Water Supply
CR = Chilled Return
CS = Chilled Water Supply
Note: Reheat coils are only available
on units with 2-pipe main coils.
23-1/4"
RHS
19-15/16"
RHR
18-11/16"
HS
20-1/2"
HR
20-13/16"
CR
21-13/16"
CS
Coil Connections, Horizontal Units
COMPACT CONCEALED
22-3/8" CS
21-3/8" CR
21-1/16" HR
19-5/16" HS
8-3/16"
RHR
5-5/16"
CS
4-7/8"
RHS
4-3/8" CR
2-5/16" HR
RMS = Reheat Supply
HR = Hot Water Return
HS = Hot Water Supply
CR = Chilled Return
CS = Chilled Water Supply
Note: Reheat coils are only available
on units with 2-pipe main coils.
20-9/16" RHR
23-7/8" RHS
UNT-PRC001-EN 69
UNT-PRC001-EN.book Page 70 Tuesday, May 8, 2012 10:54 AM
Dimensions and Weights
Fresh Air Opening
Fresh Air Opening Locations, Horizontal Units Models C, D, and E
1-5/8" 1-5/8"
2-15/16"
1-5/8" 1-5/8"
2-15/16"
Fresh Air Opening Dimensions, Horizontal Units
Unit Size 02–03 04 06 08
A
B
18”
21-5/16”
23”
26-5/16”
32-1/2”
35-13/16”
41”
44-5/16”
10–12
60”
63-5/16”
1-5/8"
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Fresh Air Opening Locations, Vertical Units Models A, B, and J
1-5/8" 1-5/8"
Dimensions and Weights
Fresh Air Opening
2-15/16"
1-5/8" 1-5/8"
2-15/16"
Fresh Air Opening Dimensions, Vertical Units
Unit Size 02–03 04 06
A
B
18”
21-5/16”
23”
26-5/16”
32-1/2”
35-13/16”
08
41”
44-5/16”
10–12
60”
63-5/16”
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Dimensions and Weights
Fresh Air Opening
Fresh Air Opening Locations, Low Vertical Units Models K and L
Fresh Air Opening Dimensions, Low
Vertical Units
Unit Size 03 04 06
A
B
24-1/4”
26-1/4”
33-3/4”
35-3/4”
42-1/4”
44-1/4”
9-3/16"
3-9/16"
9-3/16"
3-9/16"
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Dimensions and Weights
Wall Box
Wall Box
1/8”
CONTINUOUS
MORTAR RIBS
TOP AND
BOTTOM
1/8”
Wall Box Dimensions
Unit Size Dimensions A x B
02–03
04
06
08
10–12
24-3/8 x 4-3/4
24-3/8 x 7-1/2
33-1/8 x 7-1/2
37-1/2 x 7-1/2
58-1/4 x 7-1/2
Internal
Support
2
3
1
1
4
1/2”
3/4”
1/2”
1-3/8”
4”
CLEARANCE
FOR DRAINAGE
1/8”
WOVEN ALUMINUM
INSECT SCREEN
A
CONTINUOUS DRIP LIP
TOP AND BOTTOM
UNT-PRC001-EN
ADDITIONAL INTERNAL
SUPPORTS EQUALLY SPACED.
NOT TO EXCEED 12” O.C.
5/8”
B
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Dimensions and Weights
Projection Panel
Projection Panel
Projection Panel Dimensions
Unit Size
A
B
02–03
47”
30”
04
51”
30”
Projection Panel, All Unit Sizes
C
D
E
2”
1-1/8”
8-5/8”
2-1/2”
1-5/8”
8-1/8”
3”
2-1/8”
7-5/8”
06
63”
30”
3-1/2”
2-5/8”
7-1/8”
08
65-1/2”
33-1/2”
10–12
89-1/2”
33-1/2”
4”
3-1/8”
6-5/8”
4-1/2”
3-5/8”
6-1/8”
5”
4-1/8”
5-5/8”
5-1/2”
4-5/8”
5-1/8”
6”
5-1/8”
4-5/8”
UNIT TO WALL - TOP VIEW
74
FRONT VIEW ISO
REAR VIEW ISO
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Mechanical Specifications
UniTrane Fan-Coil Mechanical Specifications
Performance Data
Capacity: Unit capacities are certified under Industry Room Fan-Coil Air Conditioner Certification
Program in accordance with AHRI Standard 440-97.
Safety: All standard units are UL listed in the United States and Canada and comply with NFPA 90A requirements.
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. Horizontal units and all units with standard piping packages also include a thermoplastic auxiliary drain pan. Steel parts exposed to moisture are galvanized. The fan board assembly and both drain pans are easily removable. The fan board assembly includes a quickdisconnect motor plug. The chassis construction is 18-gage galvanized steel, and continuous throughout the unit. The unit is acoustically and thermally insulated with closed-cell insulation. All panels are made rigid by channel forming.
Vertical Cabinet and Slope Top Units
Front panel fabrication is 16-gage galvanized steel. All other panels are 18-gage galvanized steel.
The discharge grille is recessed to resist condensate formation. Hinged access door construction is 20-gage steel and is flush with top panel.
Horizontal Cabinet Units
All panels are 18-gage galvanized steel, including the bottom panel. Discharge grille is recessed to resist condensate formation. The hinged access door is flush with front panel. Bottom panels ship with tamperproof screw fasteners and a safety chain.
Concealed/Recessed Units
Exposed panels on recessed units are 18-gage steel construction and ship separate from the unit.
Bottom panels on horizontal recessed models ship standard with tamperproof screw fasteners and a safety chain. Horizontal recessed units feature a telescoping panel to allow the panel to be adjusted to line up flush with the ceiling. The telescoping panel extends 1.25” to 2” depending on the configuration of airflow.
Low Vertical Unit
Front panels are of 16-gage galvanized steel. All cabinet parts are made rigid by channel forming.
End panel is removable for piping access. Hinged access door construction is 20-gage steel and flush with top panel.
Unit Finish
All cabinet parts and exposed recessed panels are cleaned, bonderized, phosphatized, and painted with a baked powder finish available in six decorator colors. Standard finish meets ASTM B117 specifications (salt spray test).
Fans
The galvanized metal fan wheels are centrifugal forward-curved and double-width. Fan wheels and housings are corrosion resistant. Fan housing construction is formed sheet metal. Low vertical units utilize an aluminum tangential wheel design.
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Mechanical Specifications
Options
Motors
All motors are brushless DC (BLDC)/electronically commutated motors (ECM) factoryprogrammed and run-tested in assembled units. The motor controller is mounted in a touch-safe control box with a built-in integrated user interface and LED tachometer. If adjustments are needed, motor parameters can be adjusted through momentary contact switches accessible without factory service personnel on the motor control board.
Motors will soft-ramp between speeds to lessen the acoustics due to sudden speed changes.
Motors can be operated at three speeds or with a field-supplied variable speed controller. The motor will choose the highest speed if there are simultaneous/conflicting speed requests.
All motors have integral thermal overload protection with a maximum ambient operating temperature of 104°F and are permanently lubricated. Motors are capable of starting at 50 percent of rated voltage and operating at 90 percent of rated voltage on all speed settings. Motors can operate up to 10 percent over voltage.
Controls
Controls options are: fan speed switch, control interface, and Tracer ZN010, ZN510, ZN520, and
UC400. A variety of inputs and outputs are available for the control interface and Tracer controller options. A disconnect switch (for non-electric heat units), fused transformer, contactor(s), and terminal strip are provided with the control interface and Tracer controller options. For specifics on
Tracer ZN010, ZN510, ZN520, and UC400, please refer to “Controls,” p. 39
.
Control Interface
The control interface is intended to be used with a field-supplied, low-voltage thermostat or controller. The control box contains a relay board which includes a line voltage to 24-volt transformer, quiet contactors (for electric heat units), and an optional disconnect switch. All end devices are wired to a low-voltage terminal block and are run-tested, so the only a power connection and thermostat connection is needed to commission the unit. Changeover sensors and controls are provided whenever a change-over coil is selected. When N.O. valves are selected, inverting relays are provided for use with standard thermostats.
Fan Speed Switch
The fan speed switch is available with or without the control interface option and is available as wall-mount or unit-mount. Both the wall-mount and unit-mount FSS will employ low-voltage fan switches. However, the low-voltage fan speed option will provide an interface to factory wiring, including variable speed/high-medium-low (HML) control. The control box contains a line voltage to 24-volt transformer, ECM motor controller, and an optional disconnect switch.
Coils
All water coils are proof-tested at 300 psig (air) and leak-tested at 100 psig (air under water).
Maximum main coil working pressure is 300 psig. Maximum entering water temperature is 200°F.
Tubes and u-bends are 3/8”OD copper. Fins are aluminum and are mechanically bonded to the copper tubes. Coil stubouts are 5/8” OD copper tubing.
Reheat Coils
Reheat coils are available for use with both hot water and steam. Hot water maximum working pressure is 300 psig, and the maximum entering water temperature is 200°F. The steam coil maximum working pressure is 15 psig. The reheat coils are constructed of single circuit 5/8” copper tubes with aluminum fins. Piping connections are expanded to accept standard copper tubing
5/8”OD.
Piping Packages
All piping packages are proof-tested at 300 psig (air) and leak tested at 100 psig (air under water).
The maximum working pressure of the interconnecting piping is 300 psig.
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UNT-PRC001-EN
Mechanical Specifications
Options
Piping packages are available in either basic or deluxe configurations. The deluxe package includes unions at the coil connections and a 20-mesh strainer on the supply side with a pressure rating on the strainer of up to 400 psig. The basic package does not include either unions or the strainer. A choice of end valves are available on both the basic and deluxe piping packages.
The piping package is designed so that any condensation is directed into the UniTrane auxiliary drain pan. Insulation of piping package is not required.
Ball Valve Supply and Return
A ball-type stop valve is available on both the supply and return of the piping package. The ball valve is a shutoff valve only with a maximum working pressure of 400 psig.
Ball Valve Supply, Manual Circuit Setter Return
A ball valve is provided on the supply with a manual circuit setter on the return. The manual circuit setter is a combination flow-setting device and shutoff valve that includes two Schrader ports. The maximum working pressure of the valve is 300 psig.
Ball Valve S & R, Auto Circuit Setter Return
Ball type end valves are mounted on the supply and return, with an additional auto circuit setter mounted on the return. The auto circuit setter is an automatic flow control valve that is sized to allow a specific flowrate through the coil. Auto circuit setters also include two P/T plugs and have a maximum working pressure of 400 psig.
Control Valves
Two-Way, Two-Position Control Valves
Two-way, two-position valves are rated for a maximum pressure differential across the valves of
30 psig. The valves are also available with a close-off pressure of 50 psig. The valve actuator is easily removable for service without removing the valve body from piping. Use some means, such as a pump and chiller bypass, to ensure the maximum closed off ΔP rating of the two-way valves is not exceeded.
Three-Way, Two-Position Control Valves
Normally open three-way, two-position valves are rated for a maximum 28 psig pressure differential across the valves. Normally closed three-way two-position valves are rated for a maximum pressure differential across the valves of 20 psig. A bypass line is piped on all three-way piping packages with a balance fitting to set flow through the bypass line. The balance fitting has a maximum working pressure of 150 psig. The valves are also available with a maximum close-off pressure of 50 psig. The valve actuator is easily removable for service without removing the valve body from piping.
Modulating Control Valves
Two-way and three-way modulating valves are rated for a maximum pressure differential across the valves of 50 psig (345 kPa). The modulating valves are available in Cv values of 0.7, 1.5, 2.5 and
4.0.
All two-position and modulating control valves have a maximum working pressure of 300 psig.
The maximum entering water temperature of the valve is 200°F.
Electric Heat Coil
The auxiliary electric heating coil is 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 coils are a nickel chromium element design. The electric heat operates at the same voltage as the unit, and only a single power connection is necessary.
All units with factory-mounted electric heat are UL-listed and interlocked with the fan motor switch.
A call for electric heat operation will turn the fan on. Motors controls are synchronized with
77
UNT-PRC001-EN.book Page 78 Tuesday, May 8, 2012 10:54 AM
Mechanical Specifications
Options fan/valve operation to ensure safe operation and to ensure that two modes of heat are not operating simultaneously. A transformer is supplied on any voltage unit, eliminating the need for field installation of a step-down transformer. Unit-mounted quiet magnetic relays are supplied on all voltages. A high temperature cutout with automatic reset is provided as an integral part of the elements to de-energize the electric heat in the event of a malfunction.
Filters
Filters are concealed from sight and easily removable. Filters are located behind an integral access door on horizontal type units. Filters are either 1” throwaway or 1” MERV 8.
Units equipped with 1” MERV 8 filters have a rating based on ASHRAE Standard 52.2. The average dust spot efficiency is no less than 35 to 40 percent when tested in accordance with ASHRAE 52.1 atmospheric dust spot method.
Units equipped with 1” MERV 13 filters have a rating based on ASHRAE Standard 52.2. The average dust spot efficiency is no less than 90 percent efficiency on 1–3 micron particles and greater than 90 percent efficiency on 3–10 micron particles when tested in accordance with
ASHRAE Test Standard 52.2.
Fresh Air Damper
A fresh air opening with a damper is a factory-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.
Return and fresh air mixes when the damper is open.
Manual Damper
The manual damper is field-adjustable to allow a zero to 100 percent fresh air position.
Auto Two-Position Damper
The auto two-position damper is factory set at 25 percent when open. The damper can be set in the field to allow a zero to 50 percent fresh air position.
Economizer Damper
The economizer damper is accompanied by a factory-installed and wired modulating actuator. The damper is factory set at 25 percent default minimum and 100 percent maximum opening. The damper is field adjustable using Tracer Summit or Rover to allow a zero to 100 percent fresh air.
Disconnect Switch
A unit mounted disconnect switch is available as a standard option on all units.
Colors
Six decorator colors are available in a baked powder finish. For a color chart, contact your local
Trane office for a copy of UNT-SLB017-EN (Color Selector: Cabinet Heaters, Fan-Coils, Unit
Ventilators, & Water-Source Heat Pump Consoles).
Extended End Pockets
On vertical or horizontal cabinet units, an 8” extended end pocket is available on the piping end.
Tamperproof Locks
Key-operated locking access doors and/or panels will help prevent nuisance tampering with unit and/or controls. Tamper proof locks are available on vertical cabinet, horizontal cabinet, vertical recessed, vertical slope top, and low vertical units.
Leveling Feet
Refrigerator type screw-in bolts to level the unit are available on vertical and low vertical cabinet units.
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Mechanical Specifications
Options
Quad Grille Outlet
Figure 27. Quad grille outlet
Quad grilles are square multi-directional grilles that allow four different discharge directions by rotating the grilles 90°. The quad grille construction is a black plastic material (NORYL-SE 1-731) with a 15° angle on the discharge louvers. Quad grilles are recessed into the discharge panel to prevent condensation from forming on the grille exterior. Quad grilles are available on all cabinet style units.
Bar Grille Inlet/Outlet
Figure 28. Bar grille inlet and outlet
Bar grilles are formed steel grille options available on the discharge of all cabinet units, the return of vertical cabinet, vertical slope tops and low vertical cabinet units. The grilles have a black paint finish with 18-gage steel construction. The louvers are formed at a 15° angle, and the discharge grilles are recessed to prevent condensate formation on the surface of the grille. The bar grilles are fixed in one discharge direction.
Sub-bases
Figure 29. Sub-base (shown turned on its side)
UNT-PRC001-EN
Sub-bases elevate vertical cabinet or slope top cabinet units to a specified height; for example, to reach the bottom of a window sill. The sub-base also provides a cavity through which to run piping underneath the fan-coil unit. Sub-bases are 16-gage steel construction and have the same black paint finish as the unit’s base. The sub-base is available in heights between 2”–7” in 1/2” increments. The sub-base depth and width is identical to the unit’s dimensions.
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Mechanical Specifications
Options
False Backs
Figure 30. False back
False backs increase the depth of a vertical cabinet unit and provide a cavity through which to run piping behind the fan-coil unit. False backs are also an excellent application when installing a unit beneath a window sill that extends out past the front of the unit.
False backs are 18-gage steel construction and have the same paint finish as the unit. The false back is available in depths between 2”–8” in 1” increments, with height and width identical to the unit’s dimensions.
Recessing Flanges
Figure 31. Recessing flange
80
Recessing flanges have 18-gage steel construction and are painted the same finish as the unit.
Recessing flanges provide an aesthetic architectural border or frame around vertical and horizontal cabinet fan-coil units.
Aluminum Wall Boxes
Figure 32. Wall box
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Mechanical Specifications
Options
Wall boxes have a clear anodized finish and include a single core wire mesh insect screen. The frame is 10-gage extruded aluminum alloy 6063-T5 construction. Horizontal louvers have 16-gage extruded aluminum alloy 6063-T5 construction.
Wall boxes ship separate for field installation. A field supplied duct or sleeve from the wall box to the unit fresh air opening is required to provide fresh air. Wall boxes are sized to handle up to
100 percent of nominal air flow.
Projection Panels
Figure 33. Projection panel
Projection panels allow semi-recessing of vertical recessed units.
Panels are 16-gage steel construction, painted with a baked powder finish. They are available in projection depths ranging from 2”–6” in 1/2” increments. There is a distance of 7/8” between the projection panel and the front of the unit.
Piping Components
Ball Valve
Figure 34. Ball valve
UNT-PRC001-EN
Part
Lever
Seat
Material
Steel, zinc plated
Teflon
Spec ASTM
VTFE
Packing
Stem
G-Nut
Teflon
Rod Brass
Hex Brass
RTFE
B16
B16
Ball Brass, chrome plated B16
Retainer Brass
Body Cast Brass
B16
B584-C84400
Working Pressure
400 psi
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Mechanical Specifications
Options
Manual Circuit Setter
Figure 35. Manual circuit setter
Material
Body—Forged Brass Alloy
Trim—Forged Brass Alloy
All Wetted Parts Brass
Temperature
250°F MAX
Working Pressure
300 psi
Auto Circuit Setter
Figure 36. Auto circuit setter
Material
Body—Forged Brass
Flow Cartridge—Electroless Nickel and Stainless Steel
Temperature
250°F MAX
Working Pressure
400 psi
Pressure Drop
0.5–9.0 gpm = 2 psi ΔP
10.0–12.0 gpm = 5 psi ΔP
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Mechanical Specifications
Options
Control Valve
Figure 37. Control valve
Material
Body—Forged Brass
Drive Shaft Stem—Chrome-Plated Brass (Modulating) Brass (2-Position)
Seat—Stainless Steel (Modulating)
Ball Plug—Buna N Rubber(2-Position)
Plug—High Temperature Thermoplastic (Modulating)
O-Ring Seals—EPDM Rubber (2-Position)
Actuator—Stainless Steel Base Plate, Aluminum Cover
Temperature
200°F Max.
34°F Min.
Working Pressure
300 psi
Pressure Drop (Close-Off ΔP) 1
2-Way, Two-Position, N.O. = 30 psig
2-Way, Two-Position, N.C. = 30 psig
3-Way, Two-Position, N.O. = 28 psig
3-Way, Two-Position, N.C. = 20 psig
2-Way Modulating = 50 psig
3-Way Modulating = 50 psig
Balance Fitting
Figure 38. Balance fitting
UNT-PRC001-EN
Material
Packing Washer—11 Ga. Brass
O-Ring—EPDM Rubber
Stem—Rod Brass
1 All valves are available with optional 50 psig (345 kPa).
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Mechanical Specifications
Options
Gland Screw—Hex Brass
Valve Body—Cast Brass
Union
Material
Nut—Forged Brass
Body—Copper
Tail—Copper
Strainer
Figure 39. Strainer
Material
Body—Cast Bronze (85-5-5-5)
Cover—Cast Bronze (85-5-5-5)
Screen—Stainless Steel (20 Mesh)
Gasket—Teflon
Pressure and Temperature
400 psi at 150°F
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Trane optimizes the performance of homes and buildings around the world. A business of Ingersoll Rand, the leader in creating and sustaining safe, comfortable and energy efficient environments, Trane offers a broad portfolio of advanced controls and HVAC systems, comprehensive building services, and parts.
For more information, visit www.Trane.com.
Trane has a policy of continuous product and product data improvement and reserves the right to change design and specifications without notice.
© 2012 Trane All rights reserved
UNT-PRC001-EN 08 May 2012
Supersedes UNT-PRC001-EN (05 Dec 2011)
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Table of contents
- 2 Introduction
- 5 Features and Benefits
- 8 Model Number Descriptions
- 11 General Data
- 11 Model A, Vertical Concealed
- 11 Model B, Vertical Cabinet
- 12 Model C, Horizontal Concealed
- 13 Model D, Horizontal Cabinet
- 14 Model E, Horizontal Recessed
- 14 Model H, Vertical Recessed
- 15 Model J, Vertical Cabinet Slope Top
- 15 Model K, Low Vertical Concealed
- 15 Model L, Low Vertical Cabinet
- 16 Model P, Compact Concealed
- 17 Model P, Compact Concealed (with Recessed Panel Option)
- 20 Factory-Installed Piping Packages
- 23 Selecting the Correct Modulating Valve Size
- 25 Performance Data
- 26 Horizontal Concealed, Compact Concealed, Horizontal Recessed, and Vertical Recessed
- 27 Vertical Concealed
- 28 Horizontal Cabinet and Vertical Cabinet
- 29 Vertical Slope Top Cabinet
- 30 Low Vertical Cabinet and Low Vertical Concealed
- 31 Horizontal Concealed, Compact Concealed, Horizontal Cabinet, Horizontal Recessed and Vertical Recessed
- 32 Vertical Concealed
- 33 Horizontal Concealed, Compact Concealed, Horizontal Recessed and Vertical Recessed
- 34 Vertical Concealed
- 35 Horizontal Cabinet and Vertical Cabinet
- 36 Vertical Slope Top Cabinet
- 37 Horizontal Concealed, Compact Concealed, Horizontal Cabinet, Horizontal Recessed, and Vertical Recessed
- 38 Vertical Concealed
- 39 Controls
- 39 ECM Engine Controller
- 40 Control Options
- 40 Manual Fan Mode Switch
- 41 Customer Supplied Terminal Interface (CSTI)
- 42 Tracer Controls
- 44 Sequence of Operation
- 47 Zone Sensor Options
- 49 Control Features
- 51 Tracer ZN520 and UC400 Additional Features
- 52 End Device Options
- 55 Electrical Data
- 58 Dimensions and Weights
- 58 Unit Weights
- 59 Vertical Concealed, Model A
- 60 Vertical Cabinet, Model B
- 61 Horizontal Concealed, Model C
- 62 Horizontal Cabinet, Model D
- 63 Horizontal Recessed, Model E
- 64 Vertical Recessed, Model H
- 65 Vertical Slope Top, Model J
- 66 Low Vertical Concealed, Model K
- 67 Low Vertical Cabinet, Model L
- 68 Compact Concealed, Model P
- 69 Coil Connections, Vertical Units
- 69 Coil Connections, Horizontal Units
- 70 Fresh Air Opening Locations, Horizontal Units Models C, D, and E
- 71 Fresh Air Opening Locations, Vertical Units Models A, B, and J
- 72 Fresh Air Opening Locations, Low Vertical Units Models K and L
- 73 Wall Box
- 74 Projection Panel
- 75 Mechanical Specifications
- 75 UniTrane Fan-Coil Mechanical Specifications
- 81 Piping Components