OMM-11-0211-page 8
A. Pre-Startup & Post-Startup Checks: (Check blocks as each step is completed. Retain this for your records.)
A1. Pre-Startup Checks Completed By: _______________________________
DATE: ___________________
A2. 8 Hour, Post-Startup Checks Completed By: ____________________
DATE: ___________________
A3. 3 Day, Post-Startup Checks Completed By: __________________
DATE: ___________________
MAKE SURE POWER TO THE MOTOR IS LOCKED OUT BEFORE STARTING PRE-START OR POST-START CHECKS.
1.
■
■ ■
■ ■
■
Check all blower hardware to make sure it is tight.
2.
■
■ ■
■ ■
■
Check all blower wheel, sheave and bearing set screws to make sure they are tight per
Table 2
on page 5.
3.
■
■ ■
■ ■
■
If the blower wheel or sheaves have a taper-lock bushing, make sure the bolts are tightened per
Table 3
on page 5.
4.
■
■ ■
■ ■
■
Make certain there is no foreign material in the blower housing (optional) that can become a projectile.
5.
■
■ ■
■ ■
■
Make sure any inspection doors in the blower housing or duct work are securely bolted or locked.
6.
■
■ ■
■ ■
■
Ensure all electrical power components are properly sized and matched for your electrical system.
7.
■
■ ■
■ ■
■
Check the blower wheel, by turning the blower shaft by hand, to ensure it rotates freely.
8.
■
■ ■
■ ■
■
Check sheaves for proper alignment and belts for proper tension.
See instructions on pages 5 and 6.
9.
■
■ ■
■ ■
■
Check that all required guards are properly secured.
10.
■
■ ■
■ ■
■
If your blower is mounted on an elevated support structure, make sure the structure is welded at all the joint con-
nections, welds have not cracked and the structure is properly braced to prevent “side sway”.
11.
■
■ ■
■ ■
■
Never
subject a “
cold
” blower to a “
hot
” gas stream. If the blower will be handling “hot gases” greater than 150°F
(65°C) it is imperative that the blower be subjected to a gradual rate of temperature increase, not to exceed
15°F/minute (8°C/minute). The same temperature limits are also important when the blower is experiencing a drop
in temperature until the temperature drops down to 150°F (65°C). Only, when the entire blower has reached an
equilibrium temperature of 150°F (65°C), or less, should the power be turned off.
12.
■
■ ■
■ ■
■
Make sure the power source connections to the blower motor are per the motor manufacturer’s instructions.
13.
■
■ ■
■ ■
■
Make sure the blower wheel is stationary prior to startup.
Starting a blower with a wheel that is rotating back-
wards can cause wheel damage.
14.
■
■ ■
■ ■
■
Apply power to the blower motor momentarily (i.e. “bump start”) to check for proper blower wheel rotation. If the
blower is rotating in the wrong direction, reconnect the motor leads per the motor manufacturer’s wiring schematic.
Blower rotation is determined by viewing the blower from the motor or drive side of the blower, NOT from
the inlet side
. After reconnecting the leads, repeat this step.
See Fig. 5 below.
8. Normal Motor Operating Temperatures:
Using your hand to test the normal running temperature of a motor can be a very painful experience;
The normal operating temperature of a fully loaded, open type, electric motor operating in a 70°F. (21°C.)
ambient temperature is 174°F. (79° C.)
C. Maximum Blower Speed and Motor Speed Controllers:
If you will be using any type of motor speed controller with this blower, DO NOT exceed the maximum safe
blower speed
. Installing and using a speed control device requires special training and certification as required by the
speed control manufacturer. See the manufacturers instructions for proper use, installation and wiring connections for
the maximum speed settings. It may be necessary to “block out” some speeds to eliminate a resonant vibration prob-
lem. The maximum safe blower speed is shown on the data sheet shipped with the blower. If you have lost the data
sheet, contact Cincinnati Fan or our sales office for your area. You must have the serial number from the
blower
name
plate for us to determine the maximum safe blower speed.
Cincinnati Fan will only extend the motor manufacturers warranty, when used with a speed controlling device, if the
motor has the words
“Inverter Duty”
marked on the motor name plate. If the motor does not have
“Inverter Duty”
marked on the motor name plate, and you have a motor failure, you will be required to contact the motor manufacturer
for any service or warranty claims.
NOTICE: Failure to complete and document all the following pre-startup and both post-startup
checks, listed in sections A (below) and B on page 9, could void all warranties.
Blower
Sheaves
IV. INITIAL UNIT STARTUP
Fig. 5
Clockwise (CW) Rotation
Counter-Clockwise (CCW) Rotation
