Lenox Lennox Merit Series Gas Furnace Upflow/Horizontal air discharge. 用户手册

Page 2

Unit Dimensions − inches (mm)

2

Flue outlet may be horizontal but furnace must be

vented vertically

3

Optional external side return air filter kit cannot be used

with the optional RAB Return Air Base.

1

NOTE − 60C and 60D units that require air volumes

over 1800 cfm (850 L/s) must have one of the following:
1. Single side return air with transition to accommodate

20 x 25 x 1 in. (508 x 635 x 25 mm) cleanable air
filter. (Required to maintain proper air velocity.)

2. Single side return  with optional return air base.
3. Bottom return air.
4. Return air from both sides.
5. Bottom  and one side return air.
See Blower Performance Tables for additional information.

23

(584)

(19)

3/4

(19)

1

Bottom Return

Air Opening

GAS PIPING INLET

(Either Side)

Side Return

Air Opening

(Either Side)

1

Bottom Return

Air Opening

FLUE OUTLET

(Top)

ELECTRICAL INLET

(Either Side)

9/16 (14)

3/4

27−3/4

(705)

19−7/16

(494)

23−1/2

(597)

1−1/2

(38)

9−1/8 (232) Right

8−5/8 (219) Left

5−3/8 (137) Right

1−9/16 (40) Left

33

(838)

3−1/8 (79)

1−15/16 (49)

14

(356)

9/16

(14)

3 (76) Right

6−3/4 (171) Left

2

FLUE OUTLET

(Either Side)

3

 OPTIONAL

EXTERNAL

SIDE RETURN

AIR FILTER KIT

(Either Side)

16

(406)

14−3/4

(375)

3

OPTIONAL

EXTERNAL

SIDE RETURN

AIR FILTER KIT

(Either Side)

3−1/4 (83)

5/8

(16)

1

3−1/4

(83)

23−3/4

(603)

25

(635)

3/4(19)

Front Panel

ELECTRICAL

INLET (Either Side)

(Either Side)

ML180UHE Model No.

A

B

C

D

in.

mm

in.

mm

in.

mm

in.

mm

045(X)E36A

14−1/2

368

13−3/8

340

13

330

4−3/4

121

070(X)E36B
090(X)E48B

17−1/2

446

16−3/8

416

16

406

6−1/4

159

090E60C
110(X)E60C

21

533

19−7/8

504

19−1/2

495

8

203

135E60D

24−1/2

622

23−3/8

546

23

584

9−3/4

248