Lennox SL280UH090V48B - Manual

Lennox SL280UH090V48B

Lennox SL280UH090V48B – Manual, read for free online in PDF format. We hope this helps you resolve any issues you may have. If you have further questions, please contact us through the contact form.

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Table of Contents:

  • Page 2 – FRONT VIEW; SUPPLY AIR; TOP VIEW; Side Return; SIDE VIEW
  • Page 3 – Parts Arrangement; FIGURE 1
  • Page 4 – Shipping and Packing List; Package 1 of 1 contains; Safety Information; DANGER; WARNING; Certifications
  • Page 5 – Heating Unit Installed Upstream of Cooling Unit; Gas Unit; Use of Furnace as Construction Heater
  • Page 6 – Product contains fiberglass wool.; CAUTION
  • Page 7 – FIGURE 2
  • Page 8 – FIGURE 3; FIGURE 4; FIGURE 5
  • Page 9 – Setting Equipment; The unit must be level.; Upflow Applications; Upflow Application Installation Clearances; FIGURE 7
  • Page 10 – − Return air from single side with transition which will; Refer to Engineering Handbook for additional information.; Transition; Single Side Return Air; SIDE RETURN
  • Page 11 – Horizontal Applications
  • Page 12 – Filters; TABLE 1; Duct System; Supply Air Plenum
  • Page 13 – Venting; Mounting Screws Location; UPFlow Position; Top Vent Discharge; IMPORTANT; − Remove the four mounting screws (figure 14) which; Left Side Vent Discharge; UPFLOW POSITION; Right Side Vent Discharge
  • Page 14 – Horizontal Position; HORIZONTAL LEFT POSITION; Side Vent Discharge; HORIZONTAL RIGHT POSITION
  • Page 15 – VENT CONNECTION; Venting Using a Masonry Chimney; Common Venting Using Metal−Lined Masonry Chimney
  • Page 16 – General Venting Requirements
  • Page 17 – TABLE 2; Connector Diameter
  • Page 23 – Gas Piping; Gas Supply; TABLE 9; NOTE − Capacity given in cubic feet (m
  • Page 24 – Horizontal Application; Leak Check; less than or equal to
  • Page 25 – Electrical; Precautions and Procedures; NOTE −
  • Page 26 – Thermostat Selection; Indoor Blower Speeds; Non−Communicating; thermostat, proper indoor blower speed selec-
  • Page 29 – DIP Switch Settings and On−Board Links (See figure 34); ON
  • Page 30 – OFF
  • Page 33 – SL280UHV Schematic Wiring Diagram
  • Page 34 – TYPICAL SL280UHV FIELD WIRING DIAGRAM
  • Page 35 – Integrated Control
  • Page 38 – On−Board Links; In icomfort; On−Board Link W914 Dehum or Harmony (R to DS)
  • Page 39 – BLOWER DATA; HEATING
  • Page 49 – OPERATING SEQUENCE; NO CALL FOR DEHUMIDIFICATION
  • Page 51 – Unit Start−Up
  • Page 52 – Gas Pressure Adjustment; White Rodgers Gas Valve; Do not adjust low fire man-; Proper Combustion; ALL
  • Page 53 – High Altitude; Manifold Pressure Settings; Natural; High Altitude Pressure Switch Kits
  • Page 55 – HEATING OPERATION WITH TWO−STAGE THERMOSTAT; HEATING OPERATION WITH SINGLE STAGE THERMOSTAT
  • Page 56 – Service; Blower
  • Page 58 – Remove 5 screws if necessary
  • Page 60 – dF
  • Page 61 – Integrated Control Diagnostic Codes (continued)
  • Page 66 – LSOM − Compressor open start circuit.
  • Page 67 – Program Unit Capacity/Size Mode; FINISHED
  • Page 68 – Troubleshooting: Heating Sequence of Operation
  • Page 72 – Troubleshooting: Continuous Fan Sequence of Operation
Loading the manual

Page 1

06/11

*2P0611*

506763−01

*P506763-01*

2011 Lennox Industries Inc.

Dallas, Texas, USA

UPFLOW

HORIZONTAL LEFT

HORIZONTAL RIGHT

AIR FLOW

AIR FLOW

AIR FLOW

WARNING

Improper installation, adjustment, alteration, service
or maintenance can cause property damage, person-
al injury or loss of life. Installation and service must
be performed by a licensed professional installer (or
equivalent), service agency or the gas supplier.

INSTALLATION
INSTRUCTIONS
SL280UHV

DAVE LENNOX SIGNATURE

®

COLLECTION GAS FURNACE
UPFLOW / HORIZONTAL AIR DISCHARGE

506763−01
06/2011
Supersedes 03/2011

THIS MANUAL MUST BE LEFT WITH THE

HOMEOWNER FOR FUTURE REFERENCE

This a safety alert symbol and should never be ignored.
When you see this symbol on labels or in manuals, be alert
to the potential for personal injury or death.

CAUTION

As with any mechanical equipment, personal injury
can result from contact with sharp sheet metal
edges. Be careful when you handle this equipment.

NOTICE

A thermostat is not included and must be ordered
separately.

The Lennox icomfort Touch

®

thermostat must be

used in communicating applications.

In non−communicating applications, the Lennox
ComfortSense

®

7000 thermostat may be used, as

well as other non−communicating thermostats.

In all cases, setup is critical to ensure proper sys-
tem operation.

Field wiring for both communicating and non−com-
municating applications is illustrated in diagrams,
which begin on Page 27.

Table of Contents

Unit Dimensions

2

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Parts Arrangement

3

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

SL280UHV Gas Furnace

4

. . . . . . . . . . . . . . . . . . . . . . . . .

Shipping and Packing List

4

. . . . . . . . . . . . . . . . . . . . . . . .

Safety Information

4

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Use of Furnace as a Construction Heater

5

. . . . . . . . . . .

General

5

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Combustion, Dilution & Ventilation Air

6

. . . . . . . . . . . . . .

Setting Equipment

9

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Filters

12

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Duct System

12

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Venting

13

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Gas Piping

23

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Electrical

25

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Integrated Control Settings

36

. . . . . . . . . . . . . . . . . . . . . . .

Blower Performance Data

39

. . . . . . . . . . . . . . . . . . . . . . . .

Unit Start−Up

51

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Gas Pressure Adjustment

52

. . . . . . . . . . . . . . . . . . . . . . . .

Proper Combustion

52

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

High Altitude

53

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Other Unit Adjustments

54

. . . . . . . . . . . . . . . . . . . . . . . . . .

Heating Sequence of Operation

54

. . . . . . . . . . . . . . . . . . .

Service

56

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Planned Service

59

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Repair Parts List

59

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Integrated Control Diagnostic Codes

60

. . . . . . . . . . . . . . .

Program Unit Capacity/Size Mode

67

. . . . . . . . . . . . . . . . .

Troubleshooting

68

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

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Summary

Page 2 - FRONT VIEW; SUPPLY AIR; TOP VIEW; Side Return; SIDE VIEW

Page 2 Unit Dimensions − inches (mm) 1 NOTE − 60C and 60D units that require air volumes over 1800 cfm (850 L/s) must have one of the following:1. Return air from single side transition will accommodate 20 x 25 x1 in.(508 x 635 x 25) cleanable air filter. (Required to maintain proper airvelocity)2. ...

Page 3 - Parts Arrangement; FIGURE 1

Page 3 Parts Arrangement FIGURE 1 HEAT EXCHANGER CABINET COMBUSTION AIR INDUCER BLOWER ASSEMBLY BURNER BOX INNER BLOWER ACCESS PANEL ACCESS PANEL SIGHT GLASS COMBUSTION AIR INDUCER PRESSURE SWITCH GAS VALVE CONTROL BOX (Includes two−stage integrated control, transformer and circuit breaker) ROLLOUT ...

Page 4 - Shipping and Packing List; Package 1 of 1 contains; Safety Information; DANGER; WARNING; Certifications

Page 4 SL280UHV Gas Furnace The SL280UHV gas furnace is equipped with a two−stage,variable speed integrated control. the control is compat-ible with:Communicating thermostats − icomfort Touch ® . Non−comunicating thermostats − ComfortSense or otherconventional thermostats.Control systems − Harmony I...

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