JOHNSON CONTROLS
27
SECTION 2 - START-UP AND OPERATION
FORM 102.20-OM2
ISSUE DATE: 6/01/2015
2
End Devices Requirements*
It is necessary for an independent contractor to provide
controls capable of sending 0-10 VDC or a 2-10VDC
signal to the actuator and receiving a 0-10VDC signal
back from the transducer. A 24VAC power source must
be provided.
* This paragraph only applies if the actuator and trans-
ducer are YORK supplied. Any controls provided by
"others" are the contractor's responsibility.
AHU
Airflow Station Specifications
Furnish and install, at locations indicated on plans and/
or schedules, an air monitoring station integral with
outside air control damper, stationary airflow sensing-
device, and air straightening section. The integral air
monitoring station shall incorporate pressure sensing
ports built into the sensing device and shall control
the minimum amount of outside air as recommended
by ASHRAE 62-2001. The airflow monitoring station
must be tested in accordance with AMCA Standard
611-95 in an AMCA registered laboratory. The air-
flow monitoring station must bear the AMCA Certified
Ratings Seal for Airflow Measurement Performance.
If airflow station is internally mounted inside air han-
dling unit and incorporates a control damper, the con-
trol damper must comply with leakage rates of damper
specification.
If ASHRAE 90.1 is referenced, also include
If airflow station is internally mounted inside air han-
dling unit and incorporates a control damper, the control
damper must comply with leakage rates per ASHRAE
90.1-1999. All damper leakage rates must be provided
in submittal data on a CFM/FT
2
at 1" w.g. basis.
AMS-60 (Indoor AHU)
Use the following equation to determine the correct
jumper setting for your application:
CFM=(FREE AREA*Ka)*Pams (1/m), where Ka = 3213
Pams = Range of transmitter, and (l/m) = 0.54.
TABLE 3 -
INDOOR UNIT EXAMPLE
UNIT NAME
FAN DESIGN
FLOW (CFM)
AMS
SENSING (%)
AMS O.A.
SETPOINT
(CFM)
AMS-60 SENSING DAMPER
DIMENSIONS 100% SENSING
AMS
SENSING
AREA
(SQ. FT.)
"A" DIM. (IN.)
"B" DIM. (IN.)
AHU-01
21370
25
7000
22.5
32.75
5.1
RANGE: 0.0 TO +0.25
MIN
MAX
0
0.25
Recommended operating range is 345-2,000 FPM. Op-
eration outside these parameters is not recommended.
VOLTS
PAMS
CFM
FPM
0
0.00
0.0
0.00
1
0.03
2243.0
438.33
2
0.05
3261.3
637.32
3
0.08
4059.5
793.31
4
0.10
4741.8
926.64
5
0.13
5349.0
1045.30
6
0.15
5902.4
1153.45
7
0.18
6414.8
1253.58
8
0.20
6894.4
1347.31
9
0.23
7347.2
1435.78
10
0.25
7777.3
1519.84