Operator's Manual: Models CB-1750, CB-2500 & CB-3250
3-10
7.
Align the motor pulley with the blower pulley.
a. Place the blower bushing ½ inch from the end of the shaft and tighten the capscrews securely
(9 Ft. - Lbs. if using a torque wrench).
b. Place a level or straight edge flat onto the two most outer edges of the blower pulley.
c. Place the motor pulley and bushing about ¼ inch away from the straight edge.
d. Start tightening the screws on the motor bushing. As the screws are tightened, the motor
pulley will approach the straight edge. TIGHTEN THE CAPSCREWS SECURELY (9 Ft. -
Lbs. if using a torque wrench).
e. Four points of the two pulleys should be touching the straight edge. If they don’t make full
contact, loosen the screws on the motor bushing and realign it so both pulleys are on the
same plane.
8.
Place the belt on the pulleys, starting with the motor pulley and feeding it onto the blower pulley.
9.
Tighten the belt (Refer to Figure 3G).
a. Raise the motor bracket and at the same time tighten the nut on the tension bracket.
b. DO NOT over tighten the belt. Leave about 1inch of slack (when pushing on the top of the belt, it
should deflect about 1 inch).
Installing the CB-3250 Motor Pulley, Blower Pulley, and V-Belt (continued)
WARNING:
To prevent serious personal injury, DO NOT operate the furnace without the belt
and blower guards in place.
Before proceeding with the assembly of your furnace, it is important to determine the configuration of
the air discharge for your furnace. There are three configurations to consider:
(1)
Unit Heater
Furnace with blower assembly for free air applications.
Follow the instructions (provided in this section) to install the blower
assembly
and
air
discharge
components.
Be sure to adhere to the proper
specified clearances for Unit Heater Configurations as stated in
Section
4
of
this
manual.
(2)
Central Furnace (A)
Furnace with blower assembly for ducting applications with .25 or less
static
pressure.*
Follow the instructions to install the blower assembly and air discharge
components, and refer to the following chart for the proper air discharge
and ducting specifications.
Be sure to adhere to the proper specified
clearances for Central Furnace Configurations as stated in Section 4 of
this
manual.
(3)
Central Furnace (B)
Furnace with blower assembly for ducting applications from .25 to .40
static
pressure.*
Follow the instructions to install the blower assembly, and refer to the
following chart for the proper air discharge and ducting specifications.
Be sure to adhere to the proper specified clearances for Central Furnace
Configurations as stated in Section 4 of this manual.
Determining the Air Discharge Configuration
Installing the CB-3250 Belt Guard and Blower Guard
1.
Refer to Figure 3F and 3G.
2.
Install the belt guard and blower guard as shown.
Содержание CB 140
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Страница 8: ...TABLE OF CONTENTS APPENDIX C Furnace Service Record C 1 ...
Страница 40: ...Operator s Manual Models CB 1750 CB 2500 CB 3250 3 20 ...
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Страница 80: ...Operator s Manual Models CB 1750 CB 2500 CB 3250 7 4 ...
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Страница 104: ...Operator s Manual Models CB 1750 CB 2500 CB 3250 10 8 ...
Страница 116: ...Operator s Manual Models CB 1750 CB 2500 CB 3250 A 12 BLOWER ASSEMBLY CB 1750 2 4 5 6 7 2 8 9 10 1 11 12 1 3 I88954 ...
Страница 128: ...Operator s Manual Models CB 1750 CB 2500 CB 3250 A 24 ...
Страница 142: ...Operator s Manual Models CB 1750 CB 2500 CB 3250 C 2 ...