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JOHNSON CONTROLS
FORM 100.50-NOM6 (1207)
Belt Tensioning:
Belt tension information is included on the fan skid data
plate as shown in Figure. 4-2. Sample data plate shows
4.3 lbs pressure at .30 inches defl ection.
A Browning Belt tension gauge is used in Figure. 4-3
to prop er ly tension belts.
00494vip
FIG. 4-2 – FAN DATA PLATE - BELT TENSION
FIG. 4-3 – BELT TENSIONING GAUGE
LD06354
An incorrectly aligned and tensioned belt can
sub stan tial ly shorten belt life or overload blow er and
motor bear ings, shortening their life ex pect an cy. A belt
tensioned too tightly can over load the motor electrical,
causing nui sance trip ping of the motor overloads and/or
motor fail ure and/or shaft fail ure.
Belt Replacement
Always replace belts as a set. Follow the steps below
to replace belts:
1. Release the tension on the belts by loos en ing the
ad just ing nuts on the fan motor.
2. Remove old belts and recheck the sheave align ment
with a straight edge.
3. Install the new belts on the sheaves.
Never place the belts on the sheaves by using a
screw driv er to pry the belt over the rim of the sheave.
This will permanently damage the belts.
Summary of Contents for ECO2 YPAL 050
Page 62: ...62 JOHNSON CONTROLS FORM 100 50 NOM6 1207 THIS PAGE INTENTIONALLY LEFT BLANK...
Page 113: ...113 JOHNSON CONTROLS FORM 100 50 NOM6 1207 6 ECONOMIZER EXHAUST LD13018...
Page 114: ...114 JOHNSON CONTROLS FORM 100 50 NOM6 1207 User Interface Control Center FANS LD13019...
Page 115: ...115 JOHNSON CONTROLS FORM 100 50 NOM6 1207 6 COOLING SETUP LD13020...
Page 117: ...117 JOHNSON CONTROLS FORM 100 50 NOM6 1207 6 HEATING SETUP LD13022...
Page 119: ...119 JOHNSON CONTROLS FORM 100 50 NOM6 1207 6 SYSTEM OPTIONS LD13024...
Page 121: ...121 JOHNSON CONTROLS FORM 100 50 NOM6 1207 6 INPUTS COMFORT DEMAND VENTILATION LD13014 LD13026...
Page 125: ...125 JOHNSON CONTROLS FORM 100 50 NOM6 1207 6 ALARMS LD13031...