Functional Performance Test Checklist - Variable Volume Air Handling Unit
For Air Handling Unit:
[_____]
Ensure that a slight negative pressure exists on inboard side of the
outside air dampers throughout the operation of the dampers. Modulate OA,
RA, and EA dampers from fully open to fully closed positions.
1. Functional Performance Test: Contractor shall verify operation of air
handling unit as per specification including the following:
a. The following shall be verified when the [supply fan operating]
[supply and return fans operating] mode is initiated:
(1) All dampers in normal position [and fan inlet vanes modulate to
maintain the required static pressure]. ____________________________________
(2)
All valves in normal position.
______________________________
(3) System safeties allow start if safety conditions are met. _____
(4)
VAV fan controller shall "soft-start" fan.
__________________
(5) Modulate all VAV boxes to minimum air flow and verify that the
static pressure does not exceed the design static pressure Class shown.
_____________________________________________________________________________
b.
Occupied mode of operation - economizer de-energized.
(1)
Outside air damper at minimum position.
_____________________
(2)
Return air damper open.
_____________________________________
(3)
Relief air damper [at minimum position] [closed].
___________
(4) Chilled water control valve modulating to maintain leaving air
temperature set point. _____________________________________________________
(5) Fan VAV controller receiving signal from duct static pressure
sensor and modulating fan to maintain supply duct static pressure set point.
_____________________________________________________________________________
c.
Occupied mode of operation - economizer energized.
(1) Outside air damper modulated to maintain mixed air temperature
set point. _________________________________________________________________
(2) Relief air damper modulates with outside air damper according
to sequence of operation. __________________________________________________
(3) Chilled water control valve modulating to maintain leaving air
temperature set point. _____________________________________________________
(4) Hot water control valve modulating to maintain leaving air
temperature set point. _____________________________________________________
(5) Fan VAV controller receiving signal from duct static pressure
sensor and modulating fan to maintain supply duct static pressure set point.
SECTION 15995A
Page 42
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