FORM 145.29-IOM2 (814)
12
JOHNSON CONTROLS
LOW AMBIENT DAMPER INSTALLATION
If unit operation is required at outdoor ambient below
50
F, the optional Low Ambient Damper kit should be
installed to maintain acceptable condensing pressure.
The damper is installed directly onto the intake duct
connection as illustrated. The damper position is
determined by refrigerant pressure. A direct-coupled
electric damper actuator motor drives the damper
open or closed, depending on the output signal from a
proportional pressure control module. A pressure
transducer senses the high-side refrigerant pressure,
through a service access port, located on the liquid
refrigerant line leaving the condenser. The pressure
controller, complete with terminal connection blocks
for wiring, is attached to a field-installed mounting
bracket. Appropriate mounting hardware for the
pressure control module and the damper actuator
motor are provided with the kit. A routing hole is
provided in the condenser corner panel, near the
actuator mounting location, to allow installation of the
plenum-rated cable between the motor and the control
module.
On dual compressor units, the pressure
transducer MUST be connected to the #1
circuit liquid line fitting. Connection to
the second stage refrigerant circuit will
result in system malfunction.
For detailed installation instructions, refer to the
supplementary ‘Low Ambient Damper Kit’
installation instructions.
MODEL
PART NO.
A
B
C
DSV060B
VADK-060B-1
47.375"
5.0"
11.875"
DSV096B/120B
VADK-120B-1
66.375"
5.0"
14.125"
DSV144B/180B
VADK-180B-1
77.5"
5.0"
14.125"
DSV240B
VADK-240B-1
85.5"
5.0"
12.875"
DSV300B
VADK-300B-1
103.5"
5.0"
12.875"
Summary of Contents for DSV60B-300B
Page 5: ...FORM 145 29 IOM2 814 JOHNSON CONTROLS 5 DSV TYPICAL INSTALLATION DIAGRAM ...
Page 37: ...FORM 145 29 IOM2 814 JOHNSON CONTROLS 37 APPENDIX C TYPICAL UNIT WIRING SCHEMATICS ...
Page 38: ...FORM 145 29 IOM2 814 38 JOHNSON CONTROLS ...
Page 39: ...FORM 145 29 IOM2 814 JOHNSON CONTROLS 39 ...
Page 40: ...FORM 145 29 IOM2 814 40 JOHNSON CONTROLS ...
Page 41: ...FORM 145 29 IOM2 814 JOHNSON CONTROLS 41 ...
Page 42: ...FORM 145 29 IOM2 814 42 JOHNSON CONTROLS ...
Page 43: ...FORM 145 29 IOM2 814 JOHNSON CONTROLS 43 TYPICAL VFD UNIT WIRING SCHEMATIC ...
Page 45: ...FORM 145 29 IOM2 814 JOHNSON CONTROLS 45 NOTES ...
