Carrier 39B User Manual

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Draw-Thru Central Station Weathermaker

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39B

INDEX

PAGE PREINSTALLATION INSTALLATION

Base Unit Assembly Accessory Assembly Unit Suspension and Mounting Piping Coil Removal and Reversing Duct Connections Motor and Drive

Belt Guard START-UP SERVICE

Coil Removal

Fan Section Access

Fan Shaft Bearing Replacement

Fan Shaft Removal

Fan Wheel Removal

PREINSTALLATION

1. Use spacer bars when rigging to avoid bending unit flanges per Fig. 1.

2. Check items received against packing list and Tables 1,2, and 3. Notify Carrier at once of

any discrepancy.

3. Examine for damage incurred during shipment.

Especially check for bent fan wheel or shaft which may result in future vibration problems. If any damage is found, immediately file claim with transit company.

4. Check fan wheel setscrews (sizes 040-060) or

fan wheel clamps (sizes 070-140) for secure ness. Refer to Table 4 or Fig. 2 respectively.

a. Bolt threads with a dark-green finish require

no lubrication. Carefully lubricate all other bolt threads with oil. Do not oil fan shaft.

b. Tighten clamps evenly.

5. Exercise care in handling all equipment.

6. If unit is to be stored for more than t, ’o v,eeks prior to installation, observe the following precautions:

a. Choose storage site that is kvel and ; +urdy.

to prevent undue stress or permanei t dis tortion to fan. Do not subject bearings to direct sunlight or temperatures in excess of

180 F. '

6 6

9 14 15 19 19 19 22

23 23 23 23 23 24

b.c.Protect bearings and rotating components

against moisture, abrasives and corrosion. Cover entire unit with a tarp or plastic

coverall. Extend cover under unit if stored on ground. Moisture and condensation can cause loosening of internal insulation.

Periodically rotate fan shaft slowly by hand.

Fig. 1 — Rk , and Suspension DetailiS

Form 39B-1SI

Table 1 — 39B Type "A" Unit Arrangements (Horizontal With Reheat)

Base unit and accessories on 39BA, sizes 040 thru 060 are shipped completely assembled.

Table 1 — 39B Type "A" Unît Arrangements (Horizontal With Reheat) (cont)

Base unit and accessories on 39BA, sizes 040 thru 060 are shipped completely assembled.

LEGEND

BD — Bypass Duct CC — Cooling Coil and Reheat

Coil Section

F — Fan Section FB — Face & Bypass Damper Section

NOTE: Combination mixing box and filter assembly (MB), not shown, is shipped separately.

HF — High-Velocity Filter Section LF — Low-Velocity Filter Section P — Base Pan PD — Preheat Duct Extension PH — Preheat Coil Section

PS — Plenum Section

Separate Crates or Skids

Location for Shipping only on one Skid.

Table 2 ~ 39B Type "B" Unit Arrangements (Horizontal Without Reheat)

Base unit and accessories on 39BA, sizes 040 thru 060 are shipped completely assembled.

ARRANGEMENT

B-10

Used on 39B

B-11

Used on 39B

B-12

Used on 39B

B-13

Used on 39B

ASSEMBLED

UNIT

070-120

Hcc

SHIPPED

Shipped

Assembled

070-110 Used on 39B

Shipped

Assembled

070-110 Used on 39B

Shipped

Assembled

ARRANGEMENT

B-17

Used on 39B

B-18

Used on 39B

B-20

B-21

ASSEMBLED

UNIT

■ p

070-120

L F

070-120

PD BD

070-120 070-110

PD BD

P S

Shipped

Assembled

070-110

Shipped

Assembled

070-110

PD BD

SHIPPED

IlI

F B

120

F B

120

PD BD

120

PD BD

Used on 39B

B-15

Used on 39B

B-16

Used on 39B

070-120 070-110

070-120 070-120

Shipped

Assembled

120

Used on 39B 070-120

B-22

Used on 39B 070-120

B-23

Used on 39B

LEGEND

BD — Bypass Duct

— Cooling Coil Section Only P

— Fan Section PD

— Face & Bypass Damper Section PH

— High-Velocity Filter Section

NOTE: Combination mixing box and filter assembly (MB), not shown, is shipped separately.

070-110

PD BD

___

B P

® H

PD BD

070-120

PD BD

070-110

Shipped

Assembled

070-110

□ □ Separate Crates or Skids

Location for Shipping oniy on one Skid

120

PD t BD

“ P

120

p-y

Table 3 — 39B Type "D" Unit Arrangements (Vertical)

Base unit and accessories on 39BA, sizes 040 thru 060 are shipped completely assembled.

LEGEND

BH - Bypass Heat Section LF — Low-Velocity Filter Section CC — Cooiing Coil Section P — Base Pan F — Fan Section PH — Preheat Coil Section

FB — Face & Bypass Damper Section PS — Plenum Section

HF — High-Velocity Filter Section RH — Reheat Coil Section

NOTE: Combination mixing box and filter assembly (MB), not shown, is shipped separately.

□ □ Separate Crates or Skids

Location for Shipping only on one Skid

Table 4 — Setscrew Torques

076-140)

SETSCREW SIZE

1/4 52.7- 71 3 in.-lb 5/16 3/8 168.3-227.7 in.-lb 7/16 1/2 5/8 3/4

INSTALLATION

General

TORQUE

22 5- 30.5 in.-lb

103.7-140.3 in.-lb

22.1- 29 9 ft-lb 32 3- 43 7 ft-lb

78.2-105.8 ft-lb

107.9-146.1 ft-lb

DO NOT

1. Remove protective caps from coil piping con nections until ready to connect piping.

2. Bend or mutilate coil fins.

3. Remove protective cover or grease from fan shaft until ready to install sheave.

4. Lift by fan shaft extension or coil connections.

5. Remove fan drive from boxes until ready to install, to prevent loss of parts and installation information labeled on boxes.

6. Lift face and bypass damper assembly without

providing support under center of assembly.

1. Use spacer bars per Fig. 1 when rigging to avoid bending unit flanges.

2. Make piping and duct connections in accord ance with standard practices. Refer to Carrier System Design Manual for details.

3. Leave sufficient clearances for: a. Condensate trap. b. Removal of fan shaft and coils.

c. Service of filters, fan motor, bearings,

damper linkage, and damper motors (at least 30 inches).

d. Piping to permit removal of fan guard.

Base Unit Assembly (Fan and Coil Sections)

NOTES:

1. Base unit and accessories on 39BA sizes 040 thru 060 (arrangements A, B, and D) are shipped completely assembled, except for accessory mixing box which is shipped separately.

2. More holes may exist than indicated by these instructions. Use only those which line up.

3. Fastener package is shipped with each fan section. Sealing compound is shipped inside belt guard.

4. Remove any accessories attached to base unit

that are not in their final location per Tables 1, 2, and 3.

5. Unit suspension is simplified by completely assembling units prior to rigging.

6. Unit sizes 130 thru 140 must be assembled on a platform for suspended applications.

UNITS 39BA,BB SIZES 070 THRU 120 (Arrange ment A) - Refer to Fig. 3 and Table 1.

1. Remove shipping skid(s) and apply sealing compound to flanges on air intake side of fan

section.

2. Face air intake side of fan section toward air discharge side of cooling coil section.

3. Fasten flange 1 to 2 with five 3/8-16 x 3/4-in. hex head cap screws, lockwashers and flange 2 weld nuts.

4. Fasten flanges 3 to 4 with one 3/8-16 x 3/4-in. hex head cap screw, lockwasher, and hex nut per two flanges.

5. Fasten corners 5 to 6 with one 3/8-16 x 3/4-in. hex head cap screw, lockwasher, two plain washers and hex nut per two corners. Corner holes are 11/16-in. diameter.

6. Fasten external flange 7 to 8 with three 3/8-16 X 3/4-in. hex head cap screws, lockwashers, and flange 8 weld nuts.

7. Tighten all screws securely. UNITS 39BA,BB SIZES 130 THRU 140 AND

39BC SIZES 135 AND 140 (Arrangement A) — Refer to Fig. 3 and Table 1.

1. Follow preceding steps 1 and 2.

2. Remove fan section panels A and B. Provide a cardboard walkway on fan section bottom to protect insulation.

3. Fasten flange 1 to 2 with seven 3/8-16 x 3/4-in. hex head cap screws, lockwashers, and flange 2

weld nuts.

4. Fasten flanges 3 to 4 with five 3/8-16 x 3/4-in.

hex head cap screws, lockwashers, plain washers, and hex nuts per two flanges.

5. Fasten riser panel 9 to lip 10 with six 1/4-20 X 1/2-in. self-tapping screws and Hp 10

engagement holes.

6. Tighten all screws securely.

7. Remove cardboard walkway from fan section

and replace panels A and B.

Fig. 3 — Base Unit Assembly for 39BA,BB070-140 and 39BC135 and 140 (Arrangement A)

UNITS 39BA,BB SIZES 100 THRU 120 (Arrange ment D, except D-17 and D-18) — Refer to Fig. 4 and Table 3.

1. Remove shipping skids and apply sealing compound to flanges on air discharge side of cooling coil section.

2. Place air intake side of fan section on top of air discharge side of cooling coil section, reheat coil section or bypass heat section.

3. Fasten flange 1 to 2 with three 3/8-16 x 3/4-in. hex head cap screws, lockwashers per two flanges and flange 2 weld nuts.

4. Fasten flanges 3 to 4 with one 3/8-16 x 3/4-in. hex head cap screw, lockwasher, and hex nut per two flanges.

5. Fasten comers 5 to 6 with one 3/8-16 x 3/4-in.

hex head cap screw, lockwasher, two plain

washers, and hex nut per two corners. Corner

holes are 11/16-in. diameter.

6. Tighten all screws securely.

Arrangements D-17 and D-18

1. Follow preceding steps 1 thru 5.

2. Fasten spray humidifier or preheat coil section with bypass when supplied to cooling coil

section per accessory assembly.

3. Fasten flange 7 to fan section side A with three 1/4-20 X 1/2-in. self-tapping screws and side A

engagement holes.

4. Line up flanges 8 and 9 and drill two engage ment holes in each flange 9 with a no. 3 drill.

5. Fasten flanges 8 to 9 with two 1/4-20 x 1/2-in. self-tapping screws per two flanges.

6. Tighten all screws securely.

UNITS 39BA,BB SIZES 130 THRU 140 AND 39BC SIZES 135 AND 140 (Arrangement D, ex cept D-18) — Refer to Fig. 5 and Table 3.

NOTE: On arrangements D-31and35, sizes 135 and 140 — first fasten bypass heat section to cooling coil section per Accessory Assembly, then proceed with following steps;

1. Remove shipping skid(s) and apply sealing compound to flanges on air discharge side of cooling coil section.

Place air intake side of fan section on top of air

discharge side of cooling coil section, reheat coil section, or bypass heat section.

Cooling coil section —

3. a. Line up side A of fan section with filler

panel and drill eight engagement holes along bottom edge of side A with a no. 3 drill.

b. Fasten filler panel to side A with eight

1/4-20 X 1/2-in. self-tapping screws.

4. Bypass heat section or reheat coil section. a. Place filler panel, removed from cooling coil

section per Accessory Assembly, along flange 7 of accessory section and butt against fan section per Fig. 5.

b. Drill seven engagement holes along flange 7

with a no. 2 drill.

c. Fasten filler panel to flange 7 with seven

self-tapping screws.

d. Follow preceding steps 3a and 3b.

5. Fasten flange 1 to 2 with five 3/8-16 x 3/4-in. hex head cap screws, lockwashers, plain washers, and hex nuts per two flanges.

6. Tighten all screws securely.

Fig. 4 - Base Unit Assembly for 39BA,BB100-120 (Arrangement D)

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