Functional Test
PC:
ITEM:
ID:
AREA SERVED:
237313
Air Handling Unit
AHU-1
Office and Support Areas
The above equipment and systems integral to them are complete and ready for functional testing per
Mechanical and Controls Contractors. The prefunctional checklist items are complete and have been
checked off only by parties having direct knowledge of the event. This construction checklist is
submitted for approval, subject to an attached list of outstanding items yet to be completed (See Notes
and Associated Project Issues Log). None of the outstanding items preclude safe and reliable
functional tests being performed.
This Checklist does not take the place of the manufacturer’s recommended checkout and startup
procedures or report. Construction checklist items are to be completed as part of startup and initial
checkout.
Approvals. This filled-out checklist has been reviewed. Its completion is approved with the exceptions
noted below.
Byce & Associates
09/10/13
Commissioning Authority
Date
Owner’s Representative
Legacy Collections Center
Western Michigan University
B/A #12100284 / WMU Project No. R8952
FUNCTIONAL TEST – AIR HANDLING UNIT
PC 237313 - 1
Date
AHU-1 Information
Make
Trane, Size 25
Serial Number
Volts/Phase
Model Number
K13D29181
460/3
Location
Capacity
1210
Mechanical
CSAA025UAD00
190 MBH Htg.,
403 MBH Clg.
Service Area
CFM
11,500 CFM
Office and Support Areas
Comments:
Design
190 MBH Htg. (14 GPM)
403 MBH Cooling (87 GPM)
6,300 CFM Min. Supply Air
720 CFM Min. Outside Air
Components Included
Supply Fan
Economizer
Cooling Coil
Return Fan
Air Blender
Heating Coil
Exhaust / Relief Fan
Filter(s)
Energy Recovery Wheel
VFD(s)
Humidifier
Other
Comments:
Total Enthalpy energy recovery wheel.
Requested documentation submitted
Rec’d
Manufacturer’s cut sheets
Performance data (fan curves, coil data, etc.)
Installation and startup manual and plan
O&M manuals
Factory test results
Sequences and control strategies
Warranty Certificate
Comments:
Legacy Collections Center
Western Michigan University
B/A #12100284 / WMU Project No. R8952
FUNCTIONAL TEST – AIR HANDLING UNIT
PC 237313 - 2
Comments
Operational Checks
Check if acceptable, provide comment if unacceptable
NA
Comments
Supply fan rotation correct
Return fan rotation correct
Return fan has no unusual noise or vibration
Supply fan has no unusual noise or vibration
All dampers stroke fully without binding and spans calibrated. List
each actuated damper here when spanned:
Exhaust Air Damper: X
Small leakage (light) in installed “Ruskin”
mixed air AHU damper to be replaced w/
“Tamco” at future date T.B.D.
Outside Air Damper: X
All dampers stroked 100% of span with
no binding.
Mixed Air Damper: X
ERW Bypass Dampers: X
Valves stroke fully and easily and spanning is calibrated. List each
actuated valve here when spanned:
Heating Water: X
Htg. valve stroked 100% of span.
Clg. valve stroked 100% of span.
Chilled Water: X
Valves verified to not be leaking through coils when closed at normal
operating pressure.
The HOA switch properly activates and deactivates the unit.
Supply Air duct static pressure sensor is located 2/3rds down longest
supply duct in duct and not subject to turbulence from elbows, vanes,
etc.
Record location of sensor:
Record sensor reading at BMS:
Verify sensor setpoint from TAB Report: 1.08” S.P. (varies)
Duct SP sensor located in Rm. 1020.
.94” w.c.
S.P. (Varies in relation to AHU-2 space
pressure.) from programmed offset.
Outdoor air sensor is reporting reliable values.
Record location of OA sensor:
Record sensor temperature reading at BMS:
WMU central server location. (Global)
84.2 deg. F.
Supply fan current sensor mapped correctly to BMS.
Verify alarm at BMS upon flow failure.
Alarm to BMS was generated.
Supply fan VFD speed reporting reliable values.
Record reading at BMS.
Record VFD Hz at minimum and maximum:
Verify trouble input at VFD generates alarm at BMS.
71% of range, 48.1 Hz.
0-100% speed range.
0-68 Hz. Frequency range.
Alarm generated to BMS.
Legacy Collections Center
Western Michigan University
B/A #12100284 / WMU Project No. R8952
FUNCTIONAL TEST – AIR HANDLING UNIT
PC 237313 - 3
Operational Checks
Check if acceptable, provide comment if unacceptable
Supply airflow monitoring station reporting reliable values.
Record reading at BMS.
Record supply airflow with all terminal units at maximum airflow
position:
Record supply airflow with all terminal units at minimum airflow
position:
NA
Comments
12,144 CFM, 63 deg. F.
12,100 CFM Max. TU box flow.
6,300 CFM Min. TU box flow.
Supply air temperature sensor reporting reliable values.
Record Discharge Air Temperature reading at BMS:
60.6 deg. F D.A.T.
65 deg. (adj.) D.A.T. S.P.
Cooling coil valve position reporting reliable value.
Record valve position reading at BMS:
Cooling valve at 0% open.
Heating coil valve position reporting reliable value.
Record valve position reading at BMS:
Heating valve at 0% open.
Return air damper position mapped correctly at BMS.
Verify failure to open generates alarm at BMS.
Alarm generated to BMS.
Outdoor air damper position mapped correctly at BMS.
Record minimum outdoor airflow:
Verify minimum damper position and associated airflow from TAB
Report:
1,800 CFM Min. O.A.
Verify failure to open generates alarm at BMS.
Alarm to BMS generated.
Verify demand control ventilation programming based on outdoor air
and return air CO2 level.
Record return air CO2 level setpoint:
Record return air CO2 level at BMS:
Record outdoor air CO2 level at BMS:
1,000 ppm RA setpoint.
556 ppm Avg. RA
Baseline OA CO2 level needs to be
added to BMS & graphics.
Exhaust air damper position mapped correctly at BMS.
Verify failure to open generates alarm at BMS.
Alarm generated to BMS.
Mixed air temperature sensor reporting reliable values.
Record high and low temperature alarm setpoints:
45 deg. F. M.A.T. setpoint (low temp)
Record Mixed Air Temperature reading at BMS:
Verify alarm at BMS if reading reaches setpoints:
77.4 deg. F. M.A.T.
Alarm generated to BMS.
Exhaust fan current sensor mapped correctly to BMS.
Verify alarm at BMS upon flow failure.
Alarm generated to BMS.
Exhaust fan VFD speed reporting reliable values.
Record reading at BMS:
Verify trouble input generates alarm at BMS.
Record VFD Hz at minimum and maximum:
97.6% of speed range, 65.3 Hz.
0-100% speed range.
0-68 Hz. range.
Alarm generated to BMS.
Legacy Collections Center
Western Michigan University
B/A #12100284 / WMU Project No. R8952
FUNCTIONAL TEST – AIR HANDLING UNIT
PC 237313 - 4
Operational Checks
Check if acceptable, provide comment if unacceptable
Return airflow monitoring station reporting reliable values.
Record reading at BMS.
Record return airflow with building pressure above setpoint:
NA
Comments
SA offset deadband of 50 CFM and tracks
AHU S.A.
9,499 CFM R.A. above S.P.
Record return airflow with building pressure below setpoint:
11,192 CFM R.A. below S.P.
Return air temperature sensor reporting reliable values.
76.1 deg. F. R.A.T.
Record reading at BMS:
Building Pressure reporting reliable values.
Record pressure sensors location:
Record Building Pressure reading at BMS:
Space pressure based off pressure
relationship and 1% offset to AHU-2 zone.
AHU flow graphic is correct in BMS
Graphic easily displays system On/Off,
O.A. CO2 & set point missing from BMS.
Refer to note 4.
Specified sequences of operation and operating schedules have
been implemented with all variations documented
Specified point-to-point checks have been completed and
documentation record submitted for this system. All alarm points
have been tested and confirmed.
Legacy Collections Center
Western Michigan University
B/A #12100284 / WMU Project No. R8952
FUNCTIONAL TEST – AIR HANDLING UNIT
PC 237313 - 5
Functional Testing
Mode ID
Test Procedure
Response
(including special conditions)
AHU Scheduling
Unoccupied
Verify scheduling of unit on BMS.
In Occupied Mode:
Verify supply and return fans are on,
outside air damper is open.
Put fan(s) in off manually; verify alarm at
BMS upon fan failure.
Record heating and cooling set points in
unoccupied mode:
Unocc HTG:
Unocc CLG:
Schedule unit in unoccupied mode.
Verify supply and return fans are off, the
heating and cooling coil valves are
closed, the outdoor air damper is closed,
the return air damper is open, and the
exhaust air damper is closed.
Note #
Y/N
Y
Fan alarm generated to the BMS.
Record mixed air temperature setpoint in
unoccupied mode:
Adjust mixed air temperature set point in
unoccupied mode.
Verify heating valve opens when mixed air
temperature is below unoccupied mixed
air temperature setpoint.
Record testing setpoint adjustment:
VFD Operation
Pass
Maintain unit is unoccupied mode.
Ensure mixed air temperature is above
unoccupied mixed air temperature set
point. Adjust a terminal unit downstream
of AHU unoccupied setpoint to be above
space temperature.
Verify AHU supply fan cycles on, heating
valve opens to maintain terminal unit
space temperature at or above night
setback temperature.
Record TU and testing setpoint
adjustment:
Adjust supply duct static pressure
setpoint. Allow unit to stabilize.
Verify supply fan speed modulates to
maintain static pressure setpoint.
Verify supply airflow monitoring station
modulates accordingly.
Record BMS static pressure setpoint:
Legacy Collections Center
Western Michigan University
B/A #12100284 / WMU Project No. R8952
FUNCTIONAL TEST – AIR HANDLING UNIT
PC 237313 - 6
Y
Y
Y
Y
Functional Testing
Mode ID
Test Procedure
Response
(including special conditions)
Record static pressure setpoint
adjustments made for testing:
Record airflow variation:
Outside Air
Return Air
Discharge Air
Temperature /
Economizer
Note #
Y/N
BMS space pressure and
setpoints are not in
the BMS graphics.
Adjust building pressure setpoint. Allow
unit to stabilize.
Verify return fan speed modulates to
maintain building static pressure setpoint.
Verify return airflow monitoring station
modulates accordingly.
Record building pressure setpoint:
Record building pressure setpoint
adjustments made for testing:
Record airflow variation:
Verify outdoor air damper modulates to
maintain TAB minimum outdoor airflow.
Record cfm from BMS:
Override outdoor air damper to 0%, start
unit from unoccupied.
Verify supply fan does NOT start unit
outdoor air damper is verified open.
Override return air damper to 0%, start
unit from unoccupied.
Verify supply fan does NOT start unit
return air damper is verified open
Adjust discharge air temperature as
required. Allow unit to stabilize between
variations.
Verify outdoor damper, relief air damper,
heating coil valve, and cooling coil valve
operate in sequence to maintain
discharge air setpoint.
Record discharge air temperature
setpoints (55°-65°F) and reset schedule:
Y
Y
Y
Y
Y
Verify when outdoor air temperature is
below 55 degrees, dampers modulate to
maintain supply air temperature of 55
degrees.
Verify when outdoor air temperature is
above 55 degrees and return air enthalpy
is greater than the outdoor air enthalpy,
the return air damper and outdoor air
damper modulate for free cooling while
maintaining discharge air temperature.
Record discharge air temperature here:
Pass
Y
Y
Y
65.4 Deg. F. DAT
Legacy Collections Center
Western Michigan University
B/A #12100284 / WMU Project No. R8952
FUNCTIONAL TEST – AIR HANDLING UNIT
PC 237313 - 7
Functional Testing
Mode ID
Test Procedure
Response
(including special conditions)
Demand Control
Ventilation
Damper Positions
Morning WarmUp
Safety – Freeze
Protection
Safety – High
Temperature
Protection
Safety – Smoke
Detection
Verify when supply fan is off, outdoor and
exhaust dampers are closed. Return
damper is open.
Verify Morning Warm-Up is scheduled
through BMS.
Record warm up schedule.
Allow unit to be in Morning Warm-Up,
verify supply fan is ON, return fan is ON,
heating valve is OPEN, cooling valve is
CLOSED, outdoor air damper is
CLOSED, return air damper OPEN, relief
air damper CLOSED until return air
temperature reaches 70°F.
Once return air temperature rises above
70°F, verify the unit cycles back to
occupied mode and all valves and
dampers respond to occupied mode.
Create freeze stat alarm at freeze stat.
Verify BMS alarm is generated.
Verify fans are OFF, outdoor air damper
is CLOSED when temperature upstream
of supply fan is below 37 degrees.
Record freeze stat temperature alarm if
different than 37 degrees.
Verify fans are OFF, outdoor air damper
is CLOSED when return air temperature
is above 120 degrees.
Verify BMS alarm is generated.
Create smoke detection alarm at smoke
detector wiring.
Verify BMS alarm is generated.
Verify fans are OFF, outdoor air damper
is CLOSED when smoke is detected.
Note #
Y/N
Verify when outdoor air temperature is
above 55 degrees and return air enthalpy
is lower than the outdoor air enthalpy, the
return air damper and outdoor air damper
are at minimum position, relief damper is
closed, and return damper is open.
Verify when outdoor air temperature is
above 65 degrees, the outdoor air damper
is at minimum, relief damper is closed,
and return damper is open.
Verify outdoor air damper modulates open
upon a maximum return air CO2 level of
600 ppm.
Record minimum outdoor air position with
return air CO2 level less than 600 ppm:
Pass
Y
Y
Y
RA C02 not in BMS graphics
Y
Y
N/A
Pursuant to T.C.C. Seq. of Op’s
15 min time delay scheduled
Y
35 deg. F. low limit S.P.
Y
Two (2) L.L. devices due
to coil size.
Y
N/A
Legacy Collections Center
Western Michigan University
B/A #12100284 / WMU Project No. R8952
FUNCTIONAL TEST – AIR HANDLING UNIT
PC 237313 - 8
Y
Note 1
Comments:
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
Safety/Smoke detection alarm shut down not commissioned, devices verified by Fire Marshall testing.
SA and RA “Photohelic” pressure gauges need to be labeled.
Interior unit segment casings are dirty and need vacuum cleaning.
OA CO2 detector device and value are missing from the AHU-1 graphic at BMS.
View Window inside frame for RA fan section is loose.
Ruskin dampers (ALL) to be replaced with Tamco.
.136” w.c. ER wheel delta P
42% E.A. Rel. humidity.
40% O.A. Rel. humidity.
58% R.A. Rel. humidity.
57% S.A. Rel. humidity.
Loose heating coil circulator support corrected at time of Functional Testing by MCM.
Legacy Collections Center
Western Michigan University
B/A #12100284 / WMU Project No. R8952
FUNCTIONAL TEST – AIR HANDLING UNIT
PC 237313 - 9