JOHNSON CONTROLS
50
FORM 102.20-OM2
ISSUE DATE: 6/01/2015
SECTION 2 - START-UP AND OPERATION
OPERATION
DO NOT penetrate wireways in any man-
ner. These sheet metal channels, which
run along the top panel, contain electrical
wires and connections. Electrical shock
and/or damage to the AHU may result.
Rotating parts and electrical shock haz-
ards exist. Follow the latest lockout/tag
out procedures to lockout/tagout the fan
motor(s) and heat power disconnects
before servicing. ailure to follow proper
safety precautions may result in serious
injury or death. Refer to general safety
guidelines and safety symbols located at
the front of this manual.
Always replace RED metal tab on access
doors that provide access to moving parts.
This mechanical protection from moving
parts is required by UL-1995.
Always replace RED metal tab on access
doors that provide access to pressurized
areas. This mechanical protection is to
prevent accidental release of access doors
under positive pressure.
Verify conformance with the total outdoor airflow and
space supply airflow requirements of
ASHRAE Stan-
dard 111, SMACNA’s HVAC Systems - Testing, Adjust-
ing and Balancing,
2nd edition, or equivalent.
Do not weld or use torches on the exterior
or interior of the AHU housing. The
housing contains polyurethane insula-
tion, which, when under combustion, will
produce harmful, toxic gases resulting in
personal injury or death.
Never use silicone caulk/sealant or caulk/
sealant containing silicone in or on solu-
tion air handling equipment.
Test And Balance
Air Balance
•
System air balance should be performed as soon
as possible after AHU start-up.
•
Failure to perform air balance may result in dam-
age to AHU, generate noise vibration and conden-
sation carryover.
• Qualified air balance technician should perform
air balance.
Dynamic Balance
•
Dynamic balance has been performed at the fac-
tory on the fan assemblies. If any changes were
made to the fan assembly (fan, motor, sheaves,
belts, isolators, support structure) a vibration
analysis must be performed and the fan assembly
trim balanced if needed.
•
Dynamic balance is affected by operation of the
VFD. If a VFD is provided, refer to the caution
warnings in the VFD start-up instructions in the
VFD operator's manual. Make sure the skip fre-
quencies (jump frequencies) are installed prior to
operation of the motors for more than 30 minutes.
•
Commercial performance line of product, only
has fan balance if option is selected.
Setting Limits
Temperature
•
Cabinet Panels - 200°F
•
Standard Motors with (Class B Insulation) - 104°F.
•
Motors with Class F. Insulation - 140°F
•
Power Wiring - 140°F
•
Controls and Control Wiring - 140°F.
• Prefilters - 150°F.
• High Efficiency Filters - 180°F
•
Variable Speed Drive - ABB Mfg. - 140°F
•
Damper and Valve Actuators - 140°F
•
Gasketing - 200°F
•
Gan Bearings - 120°F (FC) , 180°F (AF)
•
Foam - Flash Point - 415°F
•
Energy Recovery Wheels
•
Thermotech - 140°F
•
Innergy tech - 122°F
•
NovelAire
®
Technologies - 200°F
•
Airxchange
®
- 170°F
