Trane UH-SVX01A-EN User Manual

Installation, Operation, and Maintenance

S&P Unit Heaters

Model Numbers:

UHSA UHPA

May 2007 UH-SVX01A-EN

Preface and Warnings and Cautions

Hazard Identification

Warnings and Cautions appear at appropriate sections throughout this literature. Read these carefully.

WARNING

Indicates a potentially hazardous situation which, if not avoided, could result in death or serious injury.

CAUTION

Indicates a potentially hazardous situation which, if not avoided, may result in minor or moderate injury. It may also be used to alert against unsafe practices.

CAUTION

Indicates a situation that may result in equipment or property-damage only accidents.

WARNING

Operational Hazards!

Improper installation, adjustment, alteration, service or maintenance can cause property damage, injury or death. Read the installation, operating and maintenance instructions thoroughly before installing or servicing this equipment.

WARNING

Compliance Hazards!

Failure to comply with the general safety information may result in extensive property damage, severe personal injury or death.

WARNING

Unit Alterations!

Do not alter the unit heater in any way or damage to the unit and/or severe personal injury or death may occur!

WARNING

Voltage Hazard!

Disconnect all power supplies before installing or servicing the heater. If the power disconnect is out of sight, lock it in the open position and tag it to prevent unexpected application of power. Failure to do so could result in fatal electric shock, or severe personal injury.

WARNING

Voltage Hazard!

Do not depend upon a thermostat or other switch as sole means of disconnecting power when installing or servicing heater. Always disconnect power at main circuit breaker as described above. Failure to do so could result in fatal electric shock.

CAUTION Equipment Damage!

Insure that all power sources conform to the requirements of the unit heater or damage to the unit will result!

Follow installation instructions CAREFULLY to avoid creating unsafe conditions. All external wiring must conform to applicable current local codes, and to the latest edition of the National Electric Code ANSI/NFPA No. 70. In Canada, all external wiring must conform to the Canadian Electric Code, Part 1 CSA Standard C22.1 All wiring should be done and checked by a qualified electrician using copper wire only. All steam and hot water connections should be made and leaktested by a suitably qualified individual, per instructions in this manual. Also follow procedures listed on the “Unit Equipment Start-Up Sheet” located in this manual.

Make certain that the power source conforms to the electrical requirements of the heater.

Special attention must be given to any grounding information pertaining to this heater. To prevent the risk of electrocution, the heater must be securely and adequately grounded. This should be accomplished by connecting a grounded conductor between the service panel and the heater. To ensure a proper ground, the grounding means must be tested by a qualified electrician.

Do not insert fingers or foreign objects into the heater or its air moving device. Do not block or tamper with the heater in any manner while in operation or just

after it has been turned off, as some parts may be hot enough to cause injury.

Note: To meet CSA and OSHA

requirements, units mounted below 8 feet (2.4m) from the floor must be equipped with an OSHA fan guard.

It is good practice to have a shutoff switch on the electrical power lines controlling the heater. Whenever a unit is serviced, shut power off to the unit.

Since these units are installed in most instances higher than 8 feet (2.4m), proper type of ladders or scaffolding should be used, as set up by OSHA requirements. It is the owner’s responsibility to provide any scaffolding or other apparatus required to perform emergency service or annual/periodic maintenance to this equipment.

In industrial plants, professional maintenance crews should service this equipment.

All Horizontal Unit Heaters are shipped fully assembled and may be used for steam or hot water applications. Coils are factory tested at 250 psig (1723.5 kg).

All Vertical Unit Heaters are shipped fully assembled and may be used for steam or hot water applications. Coils are factory tested at 400 psig air under water. Fans are balanced and motors are prelubricated.

Unless otherwise specified, the following conversions may be used for calculating SI unit measurements:

1 foot = 0.305 m

1 inch = 25.4 mm

1 psig = 6.894 kPa

1 pound = 0.453 kg

1 gallon = 3.785 L

1 inch water column = 0.249 kPa

meter/second = FPM ÷ 196.8

liter/second = CFM x 0.472

1000 Btu per hour = 0.293 kW

1000 Btu/Cu. Ft. = 37.5 MJ/m

1 cubic foot = 0.028 m

Contents

Model Number Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Fan Guard/Louver Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Dimensional Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Te c h n i c a l D a t a . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

Electrical Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

Motor Data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

Steam Performance Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

Hot Water Performance Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55

Warranty Info . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57

UH-SVX01A-EN 3

Model Number Description

UHSBA181TAA101A0A0A1

1234567891011121314151617181920

Description

Vertical hydronic unit heaters are designed for installation requiring down flow air delivery, offered in 15 sizes ranging from 41,300 to 705,000 BTU/Hr., and use with steam or hot water. Low output (increased airflow) units are available for high ceiling applications.The designs are certified by CSA (per CAN/CSA-C22.2 and UL1995). Do not alter these units in any way and do not attach any ductwork to these units. If you have any questions after reading this manual, contact the manufacturer.

Figure 1. Vertical Unit (bottom)

Figure 2. Vertical Unit (top)

Horizontal hydronic unit heaters are available in both serpentine and header type units. Serpentine units offer outputs from 8,030 to 35,900 BTU’s (2.4 to 10.5 kW) and are ideal for hot water (only) installations with limited clearances. Header type

horizontal units range from 18,000 to 360,000 (5.3 to 105.5 kW) and can operate with either hot water or steam. Both units are furnished with totally enclosed motors, with explosion proof motors as optional on header types. The designs are certified by CSA (per CAN/CSA-C22.2 and UL1995). Do not alter these

units in any way and do not attach any ductwork to the units. If you have any questions

after reading this manual, contact the manufacturer.

Figure 3. Serpentine Type

Figure 4. Header Type

Service Model Number Description

DIGIT 1,2,3 — PRODUCT TYPE

UHP UHS

DIGIT 4— DEVELOPMENT SEQUENCE

DIGIT 5, 6, 7—CAPACITY/COIL TYPE

Hot Water Only (Coil Type A

"Serpentine")

A08 8,030 BTU/HR A18 18,400 BTU/HR A25 24,800 BTU/HR A36 35,900 BTU/HR

Steam or Hot Water

042 41,300 BTU/HR 064 65,500 BTU/HR 080 80,600 BTU/HR 102 101,80 0 BTU/HR 122 124,400 BTU/HR 146 152,000 BTU/HR 166 173,000 BTU/HR 202 210,200 BTU/HR 252 249,800 BTU/HR 280 283,800 BTU/HR 336 333,400 BTU/HR 384 386,000 BTU/HR 500 496,000 BTU/HR 600 585,000 BTU/HR 720 705,000 BTU/HR

Steam or Hot Water "Header

Type Coil"

018 18,0 0 0 BTU/HR 024 24,000 BTU/HR 036 36,000 BTU/HR 048 48,000 BTU/HR 060 60,000 BTU/HR 072 72,000 BTU/HR 084 84,000 BTU/HR 096 96,000 BTU/HR 108 108,000 BTU/HR 120 120,000 BTU/HR 132 132,000 BTU/HR 144 144,000 BTU/HR 156 156,000 BTU/HR

4 UH-SVX01A-EN

Model Number Description

180 180,000 BTU/HR 204 204,000 BTU/HR 240 240,000 BTU/HR 280 280,000 BTU/HR 300 300,000 BTU/HR 360 360,000 BTU/HR

DIGIT 8—VOLTAGE

1 115/1/60 3 230/1/60 (115 V motor with

Transformer) 4 208/3/60 5 230/3/60 6 460/3/60 7 575/60/3 (Totally Enclosed)

(P only)

DIGIT 9 - MOTOR TYPE

T Totally Enclosed E Explosion Proof

DIGIT 10- DESIGN SEQUENCE

DIGIT 11- TUBE MATERIAL

A Copper B Steel (P only)

DIGIT 17 - Manual Starter

0None AManual Starter

DIGIT 18 - STEAM & HOT WATER CONTROL

0None 1 Strap on Hot Water Control 2 Steam Pressure Control (Open

on rise in pressure)

3 Steam Pressure Control

(Close on rise in pressure)

4 5.0 Amp Speed Control

Switch ( Capacities 18 - 108 only)

DIGIT 19 - VERTICAL LOUVER

0None A Vertical Louver B Fin Diffuser (P only) C Fin Diffuser w/ Coating (Ponly)

DIGIT 12- FAN GUARD

1 OSHA Fan Guard 2 Standard Fan Guard (3 phase

or Explosion Proof motors

only) 3 Standard Fan Guard (Unit

Capacities 240 - 360)

DIGIT 13 - SPECIAL COATING

0 No Special Coating A Phenolic Coating (Baked) BEpoxy C Epoxy Phenolic

DIGIT 14 - DISCONNECT SWITCH

0None 1 Disconnect switch

DIGIT 15 - THERMOSTATS (LINE VOLTAGE)

0None A Light Duty TSTAT w/ subbase

Line Volts 8 Amps B Heavy Duty TSTAT w/

subbase&guard Line Volts 16

Amps+A32

DIGIT 16 - THERMOSTAT COVER

0None A Locking Thermostat Cover

UH-SVX01A-EN 5

It is assumed that the design engineer has selected, sized, and located in the area to be heated. However, the information given here may be of additional help to the installer. These sketches indicate suggested basic locations for different types of unit heaters.

Horizontal unit heaters should be located to give a circulatory motion, preferably in the outer perimeter of the building. The units should be spaced to properly blanket the areas with warm air.

The unit should be suspended from connections provided in the unit by means of rods. The rods should then be attached to solid supports of the building.

Ta b l e 1.

Model

A08 8 (2.4) 20 (6.1)

A18 8 (2.4) 25 (7.6)

A25 9 (2.7) 29 (8.8)

A36 9 (2.7) 29 (8.8)

108 11 (3.4) 40 (12.2)

120 12 (3.7) 40 (12.2)

132 13 (4.0) 54 (16.5)

144 13 (4.0) 55 (16.8)

156 13 (4.0) 55 (16.8)

180 13 (4.0) 53 (16.2)

204 13 (4.0) 55 (16.8)

240 14 (4.3) 57 (17.4)

280 14 (4.3) 57 (17.4)

300 15 (4.6) 58 (17.7)

360 15 (4.6) 60 (18.3)

Maximum

Mounting HT.

ft (m)

18 8 (2.4) 20 (6.1)

24 8 (2.4) 24 (7.3)

36 9 (2.7) 28 (8.5)

48 9 (2.7) 30 (9.1)

60 10 (3.0) 30 (9.1)

72 10 (3.0) 29 (8.8)

84 10 (3.0) 30 (9.1)

96 11 (3.4) 38 (11.6)

Approx. Max. Throw ft (m)

Location

Figure 5.

A narrow area with four exposed walls either with or without roof exposure.

Figure 6.

Figure 6 represents a large square

area with exposed walls and roof; units are blanketing all exposed surfaces.

Figure 7 is based on 2 PSI (13.8 kPa)

steam pressure and 60 °F (16 °C) entering air temperature.

MAXIMUM DISTANCE OF THROW = T

Figure 7. Mounting Height and Approx. Heat Throw

Figure 8.

A small area with exposed walls requiring one unit.

6 UH-SVX01A-EN

Location

UNIT SIZE

048/060

072

084 & 120

096/108

1-3/4

132/144/156

180/204

240/280

300/360

15-5/16

16-9/16

19-1/16

17-13/16

21-9/16

22-13/16

26-1/16

31-9/16

1-7/8

2-1/2

3-1/2

4-1/2

11-11/16

10"

Figure 9. Four Point Suspension-Shelf Mounted Motors Only

1-3/4

4 PT. SUSPENSION USE 3/8-16 THREADED RODS (4 LOCATIONS)

D6340

UH-SVX01A-EN 7

Location

"FORCED HOT WATER"

PET COCK

(SYSTEM VENT)

GATE VALVE

RETURN

Figure 10. Forced Hot Water

SUPPLY

GATE VALVE

D-6056

DRAIN VALVE

8 UH-SVX01A-EN

Location

PET COCK

(SYSTEM VENT)

RETURN

GATE VALVE

"FORCED HOT WATER"

(Serpentine Units)

Figure 11. Forced Hot Water: Serpentine Unit Only

SUPPLY

GATE VALVE

DRAIN VALVE

D-6057

UH-SVX01A-EN 9

Location

GATE VALVE

"HIGH PRESSURE STEAM"

SUPPLY

PITCH UP

RETURN

GATE VALVE

PITCH UP

PET COCK

D-6058

BUCKET TRAP

(WITH AIR BYPASS)

Figure 12. High Pressure Steam

10 UH-SVX01A-EN

STRAINER

Location

"LOW PRESSURE STEAM GRAVITY"

SUPPLY

GATE VALVE

PITCH UP

RETURN

AIR VENT

PITCH UP

GATE VALVE

CHECK VALVE

Figure 13. Low Pressure Steam Gravity

UH-SVX01A-EN 11

MIN. SIZE 3/4

D-6059

10" MIN. (254 MM)

Location

GATE VALVE

"LOW PRESSURE

VAPOR OR VACUUM"

SUPPLY

PITCH UP

RETURN

GATE VALVE

PITCH UP

D-6060

F & T TRAP

Figure 14. Low Pressure Vapor Or Vacuum

12 UH-SVX01A-EN

STRAINER

Installation

Installation: P Type

Periodic Service

WARNING

Heavy Objects!

Ensure that all hardware used in the suspension of each unit heater is more than adequate for the job. Failure to do so may result in extensive property damage, severe personal injury or death.

CAUTION

Lifting/Suspension Methods!

Make certain that the lifting methods used to lift the heater and the method of suspension used in the field installation of the heater are capable of uniformly supporting the weight of the heater at all times. Failure to heed this warning may result in property damage or personal injury!

CAUTION Structural Integrity!

Make certain that the structure to which the heater is mounted is capable of supporting its weight. Under no circumstances must the piping or the electrical conduit be used to support the heater; or should any other objects (i.e. ladder, person) lean against the heater or the electrical conduit for support.

CAUTION Performance Failure!

Unit heaters must be hung level from side to side and from front to back. Failure to do so will result in poor performance and or premature failure of the unit.

It is assumed that the design engineer has selected, sized, and located in the area to be heated by the design engineer. However, the information given here may be of additional help to the installer.

Vertical unit heaters should be located to give spot heating or a circulatory distribution, preferably near the outer perimeter of the building. The units should be spaced to properly blanket the areas with

warm air. Place the units at points of greatest heat loss. Blanket outside doorway and provide ample coverage of window areas. Keep units away from obstructions that will impede the full and natural air delivery of the units.

Install unit heaters to meet CSA and OSHA requirements; Vertical Unit Heaters mounted lower than 2.4 meters (8 feet) from the floor must be equipped with an OSHA fan guard. Weldnuts are provided at the top of all units for suspension purposes. The unit should be suspended from connections provided in the unit by means of rods. The rods should then be attached to solid supports of the building.

Units must hang level vertically and horizontally.

Provide sufficient clearance around units for maintenance purposes. This includes at least 7 inches above all Vertical Unit Heaters even though the motor is removable through the bottom.

Isolators are not required but may be desirable for some applications. Refer to Table 2 for Unit Weights.

Table 2. Unit Weights-Lbs

Vertical Unit Heaters

Unit Weights (Lbs.)

042 26

064 32

080 36

102 51

122 54

146 69

166 69

202 75

252 115

280 120

336 120

384 126

500 267

600 210

720 260

EXAMPLE

Tabl e 4 lists maximum mounting

height and floor spread data of warm air coverage at floor level with louver cone diffusers. Correction factors for various water temp. and psig of steam are in Ta b l e 7.

An approximation of the floor spread when operating on other than 2 lb. Steam or 219 degree may be obtained by ratioing the new floor spread and the maximum mounting height to that at 2 lb. steam or 219 degree hot water.

Following is an example:

Determine the floor spread and the maximum mounting height of a std. model 80 unit heater with a cone diffuser set at 90 degrees, operating on 280 degree hot water.

From Ta b l e 6 , maximum mounting height of a model 80 at 219 degree hot water is 18.5 ft. with floor coverage of 14.0 ft. diameter. The maximum mounting height correction factor at 280 degree hot water is 0.80.

18.5 ft. x 0.80 = 14.8 ft.

Maximum mounting height of a model 80 using 280 degree hot water.

“X” = floor spread of model 80 using 280 degree hot water.

X = 14.8 x 14.0 / 18.5

X = 207.2 / 18.5

X = 11.2 ft.

UH-SVX01A-EN 13

Installation

Table 3. Maximum Mounting Height in Feet with and without Louver Cone Diffuser

Unit Size Steam Pressure (PSI) Unit Size Steam Pressure (PSI)

042

042*

042L

042L*

064

064*

064L

064L*

080

080*

(13.8)5(34.5)10(68.9)50(344.7)75(517.1)

10.5

(3.2)

12.5

(3.8)

7.5

(2.3)

9.0

(2.7)

12.5

(3.8)

14.5

(4.4)

9.0

(2.7)

10.5

(3.2)

12.0

(3.7)

14.5

(4.4)

9.5

(2.9)

11.5

(3.5)

15.0

(4.6)

19.0

(5.8)

11.5

(3.5)

14.0

(4.3)

15.0

(4.6)

18.5

(5.6)

11.0

(3.4)

13.5

(4.1)

10.0

(3.0)

12.0

(3.7)

7.5

(2.3)

8.5

(2.6)

12.0

(3.7)

14.0

(4.3)

8.5

(2.6)

10.0

(3.0)

11.5

(3.5)

14.0

(4.3)

9.0

(2.7)

11.0

(3.4)

14.5

(4.4)

18.5

(5.6)

11.0

(3.4)

13.5

(4.1)

14.5

(4.4)

18.0

(5.5)

10.5

(3.2)

13.0

(4.0)

10.0

(3.0)

12.0

(3.7)

7.5

(2.3)

8.5

(2.6)

12.0

(3.7)

13.5

(4.1)

8.5

(2.6)

10.0

(3.0)

11.5

(3.5)

14.0

(4.3)

9.0

(2.7)

11.0

(3.4)

14.5

(4.4)

18.5

(5.6)

11.0

(3.4)

13.5

(4.1)

14.0

(4.3)

17.5

(5.3)

10.5

(3.2)

13.0

(4.0)

9.0

(2.7)

11.0

(3.4)

7.5

(2.3)

7.5

(2.3)

10.5

(3.2)

12.0

(3.7)

7.5

(2.3)

9.0

(2.7)

10.0

(3.0)

12.0

(3.7)

8.0

(2.4)

9.5

(2.9)

12.5

(3.8)

16.5

(5.0)

9.5

(2.9)

12.0

(3.7)

12.0

(3.7)

15.5

(4.7)

9.0

(2.7)

11.5

(3.5)

8.0

(2.4)

10.0 (3.0)

7.5

(2.3)

7.5

(2.3)

9.5

(2.9)

11.5 (3.5)

7.5

(2.3)

8.5

(2.6)

9.5

(2.9)

11.5 (3.5)

8.0

(2.4)

9.0

(2.7)

12.0 (3.7)

16.0 (4.9)

9.0

(2.7)

11.5 (3.5)

15.0 (4.6)

8.5

(2.6)

11.0 (3.4)

080L

080L*

102

102*

102L

102L*

122

122L

146

146L

(13.8)5(34.5)10(68.9)50(344.7)75(517.1)

18.0

(5.5)

22.0

(6.7)

13.0

(4.0)

17.0

(5.2)

14.0

(4.3)

17.0

(5.2)

11.0

(3.4)

13.5

(4.1)

17.5

(5.3)

21.5

(6.6)

15.0

(4.6)

18.5

(5.6)

16.0

(4.9)

19.5

(5.9)

21.0

(6.4)

26.0

(7.9)

15.5

(4.7)

19.0

(5.8)

18.0

(5.5)

22.5

(6.9)

17.5

(5.3)

21.0

(6.4)

12.5

(3.8)

16.5

(5.0)

13.5

(4.1)

16.5

(5.0)

10.5

(3.2)

13.0

(4.0)

17.0

(5.2)

21.0

(6.4)

14.5

(4.4)

18.0

(5.5)

15.5

(4.7)

19.0

(5.8)

20.5

(6.2)

25.5

(7.8)

15.0

(4.6)

18.5

(5.6)

17.5

(5.3)

22.0

(6.7)

17.5

(5.3)

21.0

(6.4)

12.0

(3.7)

16.0

(4.9)

13.0

(4.0)

16.0

(4.9)

10.5

(3.2)

13.0

(4.0)

16.5

(5.0)

20.5

(6.2)

14.5

(4.4)

18.0

(5.5)

15.5

(4.7)

18.5

(5.6)

20.0

(6.1)

25.0

(7.6)

14.5

(4.4)

18.0

(5.5)

17.5 (5.3)

21.5

(6.6)

15.0

(4.6)

19.0

(5.8)

11.0

(3.4)

14.0

(4.3)

11.5

(3.5)

14.0

(4.3)

9.5

(2.9)

12.0

(3.7)

15.0

(4.6)

18.5

(5.6)

13.0

(4.0)

16.0

(4.9)

14.0

(4.3)

17.0

(5.2)

17.5

(5.3)

22.5

(6.9)

13.0

(4.0)

16.0

(4.9)

15.0

(4.6)

18.5

(5.6)

14.0

(4.3)

18.0

(5.5)

10.5

(3.2)

13.5

(4.1)

11.0

(3.4)

13.5

(4.1)

9.0

(2.7)

11.5

(3.5)

14.5

(4.4)

17.5

(5.3)

12.5

(3.8)

15.0

(4.6)

13.5

(4.1)

16.0

(4.9)

17.0

(5.2)

21.5

(6.6)

12.0

(3.7)

15.5

(4.7)

14.0

(4.3)

18.0

(5.5)

NOTES:

* = Low Speed L = Low output model with all air ports open Figures in bold face show maximum mounting height with louver cone diffusers set vertically. Above table based on 60°F entering air temperature. In providing for the use of diffusers, it must be remembered that adjustment of a LCD to deflect air

toward horizontal immediately lowers the mounting height limit.

14 UH-SVX01A-EN

Installation

Table 4. Maximum Mounting Height in Feet with and without Louver Cone Diffuser

Steam Pressure (PSI)

Unit Size

166

166L

202

202L

252

252L

280

280L

336

(13.8)5(34.5)10(68.9)50(344.7)75(517.1)

18.0

(5.5)

22.5

(6.9)

22.0

(6.7)

27.5

(8.4)

22.0

(6.7)

27.5

(8.4)

25.5

(7.8)

31.5

(9.6)

20.0

(6.1)

25.0

(7.6)

24.0

(7.3)

29.5

(9.0)

21.0

(6.4)

26.0

(7.9)

25.5

(7.8)

32.0

(9.8)

24.0

(7.3)

30.0

(9.1)

17.5

(5.3)

22.0

(6.7)

21.5

(6.6)

27.0

(8.2)

21.5

(6.6)

27.0

(8.2)

25.0

(7.6)

31.0

(9.4)

19.5

(5.9)

24.0

(7.3)

23.5

(7.2)

28.5

(8.7)

20.5

(6.2)

25.5

(7.8)

25.0

(7.6)

31.0

(9.4)

23.0

(7.0)

29.0

(8.8)

17.0

(5.2)

21.5

(6.6)

21.0

(6.4)

26.5

(8.1)

21.0

(6.4)

26.5

(8.1)

24.5

(7.5)

30.5

(9.3)

19.0

(5.8)

23.5

(7.2)

23.0

(7.0)

28.0

(8.5)

20.0

(6.1)

25.0

(7.6)

24.5

(7.5)

30.0

(9.1)

22.0

(6.7)

28.0

(8.5)

14.5

(4.4)

19.0

(5.8)

18.5

(5.6)

23.5

(7.2)

18.5

(5.6)

24.0

(7.3)

22.0

(6.7)

27.0

(8.2)

17.0

(5.2)

20.5

(6.2)

20.0

(6.1)

24.5

(7.5)

17.5

(5.3)

22.0

(6.7)

21.0

(6.4)

26.0

(7.9)

20.0

(6.1)

25.0

(7.6)

14.0

(4.3)

18.0

(5.5)

17.5

(5.3)

22.5

(6.9)

17.5

(5.3)

23.0

(7.0)

21.0

(6.4)

26.0

(7.9)

16.0

(4.9)

19.5

(5.9)

19.0

(5.8)

23.5

(7.2)

17.0

(5.2)

21.0

(6.4)

20.0

(6.1)

25.0

(7.6)

19.0

(5.8)

24.0

(7.3)

Unit Size

336L

384

384L

500

500L

600

600L

720

720L

(13.8)5(34.5)10(68.9)50(344.7)75(517.1)

29.0

(8.8)

36.0

(11.0)

28.5

(8.7)

35.5

(10.8)

32.5

(9.9)

41.0

(12.5)

29.5

(9.0)

36.5

(11.1)

35.0

(10.7)

43.5

(13.3)

34.0

(10.4)

42.5

(13.0)

37.0

(11.3)

46.5

(14.2)

38.5

(11.7)

48.0

(14.6)

42.5

(13.0)

53.0

(16.2)

Steam Pressure (PSI)

28.5

(8.7)

35.0

(10.7)

28.0

(8.5)

35.0

(10.7)

31.5

(9.6)

40.0

(12.2)

29.0

(8.8)

36.0

(11.0)

34.0

(10.4)

42.5

(13.0)

33.0

(10.1)

41.5

(12.6)

36.0

(11.0)

45.5

(13.9)

37.5

(11.4)

47.0

(14.3)

41.5

(12.6)

52.0

(15.8)

28.0 (8.5)

34.0

(10.4)

27.5 (8.4)

34.0

(10.4)

30.5 (9.3)

39.0

(11.9)

28.5 (8.7)

35.5

(10.8)

33.0

(10.1)

41.5

(12.6)

32.0 (9.8)

40.5

(12.3)

35.0

(10.7)

44.5

(13.6)

36.5

(11.1)

46.0

(14.0)

40.5

(12.3)

51.0

(15.5)

25.0

(7.6)

30.0

(9.1)

24.0

(7.3)

30.0

(9.1)

27.5

(8.4)

35.0

(10.7)

25.0

(7.6)

32.0

(9.8)

29.0

(8.8)

35.0

(10.7)

28.0

(8.5)

36.0

(11.0)

31.0

(9.4)

39.0

(11.9)

32.0

(9.8)

40.0

(12.2)

35.0

(10.7)

44.0

(13.4)

24.0

(7.3)

29.0

(8.8)

23.0

(7.0)

29.0

(8.8)

26.5

(8.1)

33.5

(10.2)

24.0

(7.3)

30.5

(9.3)

28.0

(8.5)

34.0

(10.4)

27.0

(8.2)

34.5

(10.5)

30.0

(9.1)

37.0

(11.3)

30.5

(9.3)

39.0

(11.9)

33.5

(10.2)

42.0

(12.8)

NOTES: * = Low Speed L = Low output model with all air ports open Figures in bold face show maximum mounting height with louver cone diffusers set vertically. Above table based on 60°F entering air temperature. In providing for the use of diffusers, it must be remembered that adjustment of a LCD to deflect air

toward horizontal immediately lowers the mounting height limit.

Table 5. Maximum Spread

MODEL No. 42 64 80 102 122 146 166 202 252 280 336 384 500 600 720

Spread ft (m) 15

Note: The "spread" is the diameter of the comfort zone at floor level. The above table represents the spread for standard units without a louver cone diffuser and mounted at its maximum height at 2 psi (13.8 kPa) steam pressure and 60°F (16*C) entering air. (See Tables 21 and 22 for maximum moun ing heights.)

(4.6)17(5.2)20(6.1)24(7.3)26(7.9)27(8.2)28(8.5)32(9.8)35(10.7)37(11.3)45(13.7)50(15.2)54(16.5)57(17.4)60(18.3)

UH-SVX01A-EN 15

Installation

Table 6. Maximum Mounting Height and Diameter at Floor (Based on 60°F EAT and 219°F EWT or 2 psig steam)

Diffuser Cone 90°

See Figure 5A

Standard Low Output Standard Low Output

HDH D H D H D

Model ft (m) ft (m) ft (m) ft (m) ft (m) ft (m) ft (m) ft (m)

42 12.5

64 14.5

80 18.5

102 17.0

122 19.5

146 19.0

166 22.5

202 27.5

252 25.0

280 26.0

336 30.0

384 35.5

500 36.5

600 42.5

720 48.0

(3.8)

(4.4)

(5.6)

(5.2)

(5.9)

(5.8)

(6.9)

(8.4)

(7.6)

(7.9)

(9.1)

(10.8)

(11.1)

(13.0)

(14.6)

11.0

(3.4)

12.0

(3.7)

14.0

(4.3)

18.0

(5.5)

19.0

(5.8)

20.0

(6.1)

21.0

(6.4)

25.0

(7.6)

27.0

(8.2)

29.0

(8.8)

34.0

(10.4)

39.0

(11.9)

42.0

(12.8)

45.0

(13.7)

46.0

(14.0)

14.5

(4.4)

19.0

(5.8)

22.0

(6.7)

21.5

(6.6)

26.0

(7.9)

22.5

(6.9)

27.5

(8.4)

31.5

(9.6)

29.5

(9.0)

32.0

(9.8)

36.0

(11.0)

41.0

(12.5)

43.5

(13.3)

46.5

(14.2)

53.0

(16.2)

16.0

(4.9)

19.0

(5.8)

23.0

(7.0)

26.0

(7.9)

29.0

(8.8)

30.0

(9.1)

31.0

(9.4)

35.0

(10.7)

38.0

(11.6)

40.0

(12.2)

47.0

(14.3)

52.0

(15.8)

57.0

(17.4)

60.0

(18.3)

63.0

(19.2)

9.0

(2.7)

10.0

(3.0)

12.5

(3.8)

11.0

(3.4)

13.0

(4.0)

12.0

(3.7)

13.0

(4.0)

14.0

(4.3)

13.0

(4.0)

15.0

(4.6)

18.0

(5.5)

20.0

(6.1)

24.0

(7.3)

26.0

(7.9)

28.0

(8.5)

Diffuser Cone 45°

See Figure 5B

20.0

(6.1)

24.0

(7.3)

26.0

(7.9)

31.0

(9.4)

33.0

(10.1)

39.0

(11.9)

42.0

(12.8)

45.0

(13.7)

47.0

(14.3)

50.0

(15.2)

55.0

(16.8)

59.0

(18.0)

65.0

(19.8)

70.0

(21.3)

75.0

(22.9)

11.0 (3.4)

12.0 (3.7)

15.0 (4.6)

14.0 (4.3)

16.0 (4.9)

15.5 (4.7)

18.0 (5.5)

21.0 (6.4)

19.0 (5.8)

21.0 (6.4)

24.0 (7.3)

28.0 (8.5)

30.0 (9.1)

34.0

(10.4)

38.0

(11.6)

25.0

(7.6)

29.0

(8.8)

31.0

(9.4)

35.0

(10.7)

38.0

(11.6)

44.0

(13.4)

48.0

(14.6)

53.0

(16.2)

55.0

(16.8)

60.0

(18.3)

66.0

(20.1)

71.0

(21.6)

76.0

(23.2)

78.0

(23.8)

87.0

(26.5)

16 UH-SVX01A-EN

Installation

Figure 15.

Notes: To meet OSHA requirements, units mounted lower than 8 feet from the floor must be equipped with an OSHA fan guard.

Table 7. Mounting Height Correction Factors

Water °F 150 160 170 180 190 200

Temperature (°C) (66) (71) (77) (82) (88) (93)

Steam PSI - - - - - -

Pressure (kPa) - - - - - -

Correction Factor 1.32 1.27 1.23 1.18 1.14 1.09

Water °F 210 219 227 239 250 259

Temperature (°C) (99) (104) (108) (115) (121) (126)

Steam PSI - 2 5 10 15 20

Pressure (kPa) - (13.8) (34.5) (68.9) (103.4) (137.9)

Correction Factor 1.05 1.00 0.97 0.94 0.89 0.86

Water °F 267 280 287 298 307 320

Temperature (°C) (131) (138) (142) (148) (153) (160)

Steam PSI 25 35 40 50 60 75

Pressure (kPa) (172.4) (241.3) (275.8) (344.7) (413.6) (517.1)

Correction Factor 0.83 0.80 0.76 0.73 0.70 0.69

UH-SVX01A-EN 17

Piping

To provide proper coil operation, follow all piping recommendations listed in this manual.

Threaded pipe headers are provided on all Vertical Units for piping connections. See Figure 25. Connections are given in Figure 18 and Figure 19 and Table 27 and

Table 28.

Follow standard practices and codes when installing the piping. Provide swing joints for expansion purposes, unions and shut-off valves for servicing purposes and as illustrated in Figure 6 through Figure 9, valves and traps for control purposes. Use 45 degree angle run-offs from all supply and return mains.

Dirt pockets should be the same pipe size as the return tapping of the unit heater. Also, pipe size in the branchoff should be the same size as the tapping in the traps. Beyond the trap, the return lateral pipe should be increased one size up to the return main.

Properly support all piping to unit! Do not allow piping to place a strain on the coil or unit. Noise or coil failure may occur.

It is assumed that the type of system to be used has been selected by design engineer. The sketches shown are for different type of steam systems or hot water systems. For sizing of piping, traps, filter, etc., consult ASHRAE guides of the manufacturer’s literature on these products.

Installation

Figure 16.

Figure 17.

18 UH-SVX01A-EN

+ 42 hidden pages