Johnson Controls DSH Series Installation Instructions Manual
Low-ambient kit air conditioning units
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Summary of Contents for Johnson Controls DSH Series
- Page 1 INDOOR pACKAGED EqUIpMENT INSTALLATION INSTRUCTIONS Supercedes 145.10-IOM2 (910) Form 145.10-IOM2 (414) LOW-AMBIENT KIT MODELS DSH/DSV R-410A AIR CONDITIONING UNITS B STyLE Issue Date: April 2014...
- Page 2 All wiring must be in accordance with published specifications and must be performed ONLY by All wiring must be in accordance with published specifications and must be performed ONLY by qualified service personnel. Johnson Controls will not be responsible for damages/problems qualified service personnel. Johnson Controls will not be responsible for damages/problems qualified service personnel.
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Page 3: Table Of Contents
CHANGEABILITY OF THIS CHANGEABILITY OF THIS DOCUMENT In complying with Johnson Controls policy for son Controls policy for It is the responsibility of operating/service personnel It is the responsibility of operating/service person continuous product improvement, the information ous product improvement, the information... -
Page 4: Damper Installation
PRIOR TO SECURING DAMPER TO THE UNIT ENSURE DAMPER BLADES PRIOR TO SECURING DAMPER TO THE UNIT ENSURE DAMPER BLADES PRIOR TO SECURING DAMPER TO THE UNIT ENSURE DAMPER BLADES WHEN FULLY OPEN DO NOT INTERFERE WITH DO NOT INTERFERE WITH UNIT! When installing the transducer, observe all regulations governing the installing the transducer, observe all regulations governing the installing the transducer, observe all regulations governing the... - Page 5 Ensure damper blades when fully open do not contact unit VERTICAL UNITS (DSV**B SERIES) 1) The kit includes two vertical and two horizontal factory supplied duct flanges. 2) Locate pilot holes at condenser exhaust and line up duct flanges accordingly. 3) Secure flanges using self-drilling sheet metal screws.
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Page 6: Pressure Control Panel Installation
PRESSURE CONTROL PANEL INSTALLATION & HORIZONTAL WIRING WIRING 1) The Pressure Control Panel is intended for mounting, to the interior base pan in horizontal units and on the base rails in vertical units, in the compressor/condenser section, immediately behind the compressor side access panel (see photo). -
Page 7: Pressure Transducer Installation
VERTICAL WIRING PRESSURE TRANSDUCER INSTALLATION 1) The compact ‘P499’ transducer mounts directly to the liquid refrigerant pressure port. This port is incorporated into the refrigerant shut-off valve (as illustrated in DSH single stage units on page 6). 2) Hand thread the transducer onto the pressure port. (Wear a glove for protection, and seat the transducer as quickly as possible to minimize release of liquid refrigerant. - Page 8 DAMPER ACTUATOR INSTALLATION & & WIRING 1) Press and hold the gear release lever, and Press and hold the gear release lever, and rotate the drive coupler to the fully clockwise rotate the drive coupler to the fully clockwise position. Release the gear lever. 7) Hold the actuator in place, and evenly hand Hold the actuator in place, and evenly hand tighten each clamp nut onto the U...
- Page 9 ACTUATOR ROTATION – VERIFYING JUMPER W1 SETPOINT JUMPER W1 MODEL # SETTING DSH024B-DSH060B RA (CCW) DSH096B-DSH120B DA (CW) DSV060B-DSV300B RA (CCW) 16) Reattach the actuator cover, and tighten the cover screw. 17) Using the cable routing hardware provided, secure the cable to avoid accidental damage, or contact with moving components.
- Page 10 SINGLE STAGE WIRING INTERCONNECTION DRAWING Single compressor application is shown. This applies to DSH024B-DSH060B, and DSV060B models.
- Page 11 DUAL STAGE WIRING INTERCONNECTION DRAWING Dual compressor application is shown. This applies to DSH096B, DSH120B and DSV096B-DSV300B models.
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Page 12: Sequence Of Operation
SEQUENCE OF OPERATION – FUNCTIONAL CHECK If outdoor air temperature and system load result in a This condensing pressure control package is designed condensing pressure above 360 psig the output signal to maintain a minimum refrigerant liquid pressure of will be 0 volts. At a signal voltage of 0, the damper 260 psig, which is sufficient to ensure proper expansion actuator motor will drive fully counter-clockwise, valve operation under all normal conditions. -
Page 13: Damper Schematics
DAMPER SCHEMATIC (HORIZONTAL UNIT SHOWN) MODEL DSH024B/036B 25.875" 5.0" 23.625" DSH048B/060B 27.875" 5.0" 26.625" DSH096B 48.0" 5.0" 29.25" DSH120B 60.75" 5.0" 29.125"... - Page 14 DAMPER SCHEMATIC (VERICAL UNIT SHOWN) MODEL DSV060B 47.375" 5.0" 11.875" DSV096B/120B 66.375" 5.0" 14.125" DSV144B/180B 77.5" 5.0" 14.125" DSV240B 85.5" 5.0" 12.875" DSV300B 103.5" 5.0" 12.875"...
- Page 15 NOTES...
- Page 16 P.O. Box 1592, York, Pennsylvania USA 17405-1592 800-861-1001 Subject to change without notice. Printed in USA Copyright © by Johnson Controls 2014 www.johnsoncontrols.com ALL RIGHTS RESERVED Form 145.10-IOM2 (414) Issue Date: April 2014 Supercedes Form 145.10-IOM1 (910)
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