Contents

 

SECTION

 

PAGE

Notice to the Installer

1

I. SAFETY

2

II. INSTALLATION GUIDELINES

3

A. Codes

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

3

B. Installation Location

4

C. Closet and Alcove Installation

4

D. Standard Clearances

5

E. Air for Combustion and Ventilation

6

F. MDA1 Horizontal Installation

7

G. Duct Work and Air Conditioning

9

H. Filter/Filter Installation

9

I. Use of Non Thermo Pride Filter Retention Means

10

J. Venting

12

1.

Vertical Venting

12

2.

Replacing an Existing Furnace from a Common

13

3.

Condensing in Chimney

14

4.

Vent Flue/Vent Connector

16

K. Sidewall Venting

19

1.

Horizontal Size and Lengths for Horizontal Vents

20

L. Gas/Gas Piping

21

1.

Installation of Natural Gas Piping

23

2.

Installation of Propane Gas Piping

24

M. Electrical

26

1.

Wiring

26

2.

Field Wiring and Replacing Wiring

26

3.

Electronic Air Cleaner and Humidifier Connections

27

4.

Room Thermostat

27

5.

Blower Motor Speed Wiring

28

III. INITIAL OPERATION OF THE FURNACE

29

A. Initial Startup

29

B. Adjustment of Heat Input Rate

32

C. Burner Adjustment

34

D. Setting Supply Air Temperature Rise

35

E. Checkout Procedure

36

IV. TROUBLESHOOTING

37

V. DEALER MAINTENANCE

38

A. Electrical

38

B. General Inspection

38

C. House Air Blower

39

D. Return Air Filter

40

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Thermo Products MHA1-100N, MDA1-50N, MHA1-75N, MHA1-50N, MHA1-125N, MDA1-75N Section Safety II. Installation Guidelines