Related Manuals for Unitary products group DSH
Summary of Contents for Unitary products group DSH
- Page 1 MODELS DSH/KSH/DSV/KSV R-410A LOW-AMBIENT KIT Form 145.10-IOM1 (910) Supersedes Form145.10-IOM1 (810) LOW-AMBIENT KIT MODELS DSH/KSH/DSV/KSV R-410A AIR CONDITIONING UNITS INSTALLATION INSTRUCTIONS...
- Page 2 IMPORTANT! READ BEFORE PROCEEDING! GENERAL SAFETY GUIDLINES This equipment is a relatively complicated apparatus. which it is situated, as well as sever personal injury or During installation, operation, maintenance or service, death to themselves and people at the site. individuals may be exposed to certain components or conditions including, but not limited to: refrigerants, oils, This document is intended for use by owner-authorized materials under pressure, rotating components, and...
-
Page 3: Table Of Contents
CHANGEABILITY OF THIS DOCUMENT In complying with Johnson Controls policy for It is the responsibility of operating/service personnel continuous product improvement, the information as to the applicability of these documents to the contained in this document is subject to change equipment in question. -
Page 4: Damper Installation
(refrigerants or lubricants). DAMPER INSTALLATION HORIZONTAL UNITS (DSH / KSH SERIES) 1) Remove the factory installed duct attachment flanges from the condenser intake opening. Retain the two short (vertical) flanges – these will be used in installation of the damper. - Page 5 VERTICAL UNITS (DSV / KSV 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. The horizontal flanges should be flush with the condenser exhaust opening.
-
Page 6: Pressure Control Panel Installation
PRESSURE CONTROL PANEL INSTALLATION & 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
1) The compact ‘P499’ transducer mounts directly to the liquid refrigerant pressure port. This port is either incorporated into the refrigerant shut-off valve (as illustrated in DSH Series units), or an access port fitting brazed to the copper refrigerant line (KSH Series condensing units). -
Page 8: Damper Actuator Installation & Wiring
DAMPER ACTUATOR INSTALLATION & WIRING 1) Press and hold the gear release lever, and rotate the drive coupler to the fully clockwise position. Release the gear lever. 2) Fully close the damper, by turning the drive shaft clockwise. 3) Insert the tab on the anti-rotation bracket into the slot at the bottom of the actuator, and slide the actuator onto the damper drive shaft. - Page 9 14) Secure the cable with a large nylon wire-tie (provided), to prevent the cable from being accidentally pulled from the actuator housing (see photo). 15) Verify M9108 is configured correctly for either CW or CCW rotation. See following page, ‘ACTUATOR ROTATION’ for jumper location and configuration table.
- Page 10 ACTUATOR ROTATION – VERIFYING JUMPER W1 SETPOINT JUMPER W1 MODEL # SETTING DSH024-DSH060 RA (CCW) KSH024-KSH060 DSH096-DSH120 DA (CW) KSH096-KSH120 DSV036-DSV240 RA (CCW) KSV036-KSV240...
- Page 11 LO-AMBIENT CONTROL HORIZONTAL WIRING INTERCONNECTION DRAWING Single compressor application is shown. Two bypass timers required on dual compressor units. Connect second stage timer to Y2, HPC2/LPC2, and C.
- Page 12 LO-AMBIENT CONTROL VERTICAL WIRING INTERCONNECTION DRAWING Single compressor application is shown. Two bypass timers required on dual compressor units. Connect second stage timer to Y2, HPC2/LPC2, C.
-
Page 13: 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 14: Schematics
SCHEMATIC (HORIZONTALUNIT SHOWN) - Page 15 SCHEMATIC (VERICAL UNIT SHOWN)
- Page 16 Subject to change without notice. Printed in U.S.A. Form 145.10-IOM1 (910) © Copyright 2010 by Unitary Products Group. All rights reserved. Supersedes 145.10-IOM1 (810) Engineered Systems P.O. Box 1592 York Products York, PA Group 17405 17405...
Need help?
Do you have a question about the DSH and is the answer not in the manual?
Questions and answers