Carrier 39B User Manual

39B

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Draw-Thru Central Station Weathermaker

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INDEX
	PAGE
PREINSTALLATION	1
INSTALLATION	6
Base Unit Assembly	6
Accessory Assembly	9
Unit Suspension and Mounting	14
Piping	15
Coil Removal and Reversing	19
Duct Connections	19
Motor and Drive	19
Belt Guard	22
START-UP	22
SERVICE	23
Coil Removal	23
Fan Section Access	23
Fan Shaft Bearing Replacement	23
Fan Shaft Removal	23
Fan Wheel Removal	24

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
1.	180 F.		'

b.Protect bearings and rotating components against moisture, abrasives and corrosion.

c.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

*

© Carrier Corporation1971

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.

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		LEGEND
	BD — Bypass Duct	HF — High-Velocity Filter Section	PS — Plenum Section
	CC — Cooling Coil and Reheat	LF — Low-Velocity Filter Section	Separate Crates or Skids
	Coil Section	P — Base Pan
	F — Fan Section	PD — Preheat Duct Extension	Location for Shipping only on one Skid.
	FB — Face & Bypass Damper Section	PH — Preheat Coil Section

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

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

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

ASSEMBLED

SHIPPED

ARRANGEMENTUNIT

B-10

C ^

Used on 39B

070-120

B-11

Used on 39B

LF

B-12

Shipped

Assembled

Used on 39B

070-120

070-110

PH

B-13

P

C F

Shipped

HC

Assembled

Used on 39B

070-110

Shipped

Pc

F

Hc

I

Assembled

Used on 39B

070-120

070-110

120

B-15

Pc

I

Hc

p

120

Used on 39B

070-120

070-110

B-16

Shipped

F

c

F

B

c

Assembled

Used on 39B

070-120

070-120

ASSEMBLED

ARRANGEMENTUNIT

SHIPPED

B-17

■

p

Shipped

P

F

Fc

F

s

Bc

Assembled

s

B

Used on 39B

070-120

070-110

120

BD

B-18

P

F

P

F

\

p

F

L

c

F

c

F

ILI

F

S

B

c

s

B

c

N

s

B

p

Used on 39B

070-120

070-110

120

P

F

\

Shipped

P

F

c

F

S

B

c

Assembled

B

Used on 39B

070-120

070-110

120

PD BD

PD BD

PD BD

B-20

P

F

«

P

F

SB

s

B

M

Used on 39B

070-120

070-110

120

PD BD

PD BD

B-21

P

F

\

P

F

P

F

L

P

c

F

§

S

B

s

B

s

B

F

H

c

070-110

Used on 39B

070-120

120

PD BD

PD

BD

B-22

p

1

___V

p

F

P

F

s

B P

c

F

s

B

p

c

F

s

B

® H

c

H

c

070-110

Used on 39B

070-120

120

PD BD

PD

t BD

B-23

Shipped

“

p-y

F

P

Assembled

P

F

F

B

H

B

H

Used on 39B

070-120

070-110

				LEGEND
	BD	— Bypass Duct	LF	□ □ Separate Crates or Skids
	CC	— Cooling Coil Section Only	P
	F	— Fan Section	PD
	FB	— Face & Bypass Damper Section	PH	Location for Shipping oniy on one Skid
	HF	— High-Velocity Filter Section	PS

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

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	□ □ Separate Crates or Skids
	CC	— Cooiing Coil Section	P	— Base Pan
	F	— Fan Section	PH	— Preheat Coil Section
	FB	— Face & Bypass Damper Section	PS	— Plenum Section	Location for Shipping only on one Skid
	HF	— High-Velocity Filter Section	RH — Reheat Coil Section

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

Table 4 — Setscrew Torques

SETSCREW SIZE	TORQUE
10	22 5- 30.5 in.-lb
1/4	52.7- 71 3 in.-lb
5/16	103.7-140.3 in.-lb
3/8	168.3-227.7 in.-lb
7/16	22.1- 29 9 ft-lb
1/2	32 3- 43 7 ft-lb
5/8	78.2-105.8 ft-lb
3/4	107.9-146.1 ft-lb

INSTALLATION

General

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.

DO

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
076-140)	platform for suspended applications.

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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.

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.Cooling coil section —

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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