Only qualified personnel should install and service the equipment. The installation, starting up, and servicing of heating, ventilating,
and air-conditioning equipment can be hazardous and requires specific knowledge and training. Improperly installed, adjusted or
altered equipment by an unqualified person could result in death or serious injury. When working on the equipment, observe all
precautions in the literature and on the tags, stickers, and labels that are attached to the equipment.
This IOM is meant to demonstrate general dimensions and information of this product. The drawings are not meant to detail every aspect of the product. Drawings are not to scale.
Titus reserves the right to make changes without written notice.
All rights reserved. No part of this work may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopying and recording, or by any information storage retrieval system without permission in writing from Tomkins Industries, Inc.
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This IOM is meant to demonstrate general dimensions and information of this product. The drawings are not meant to detail every aspect of the product. Drawings are not to scale. Titus reserves the right to make changes without written notice.
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DLSC-IOM-2.0 Warnings, Cautions and Notices. Note that warnings, WARNING cautions and notices appear at appropriate intervals throughout this manual. Warnings are provide to alert Proper Field Wiring and Grounding Required! installing contractors to potential hazards that could result in death or personal injury. Cautions are designed to alert...
General Information The DLSC units are intended for single or multi zone applications with an airflow range of 400 to 1850 CFM. The DLSC units incorporate as standard a Primary Air damper which receives air from a Dedicated Outside Air system (DOAS), high efficiency ECM motor(s) and are available as two-pipe systems with or without electric heat (one hydronic circuit), four-pipe system (two hydronic circuits) or four-pipe with standby electric heating.
For of the damage by the carrier and consignee. variable frequency drives or other energy storing components provided by Titus or others, refer to the Notify your Titus representative of the damage and appropriate manufacturer’s literature for allowable waiting arrange for repair.
Control Enclosure Access Return Air Coil Connections Access Bottom Access Area for Service & Maintenance Notes: 1. Right Hand unit shown. Control enclosure dictates the handing of the unit. 2. All DLSC units are installed with removable bottom access panels.
There may be other labels attached to the unit, as options or codes may require. If you have any questions, please contact the local TITUS Representative for clarification. Have the key points from the Air Flow label available for reference before calling.
Titus recommends using galvanized sheet • Insulate all piping to coil connections as necessary metal ductwork with the DLSC units. All duct connections after connections and pressure test are complete. should be sealed and fasten with sheet metal screws.
DLSC-IOM-8.0 Installation – General Installing the Unit Hanger Brackets Follow the procedures below to install the unit properly. Refer to submittal for specific unit dimensions and mounting hole locations. Top View NOTICE Electrical Wiring! Do not allow electrical wire to fall between the unit and installation surface.
DLSC-IOM-9.0 Installation Checklist 8. Complete all necessary duct connections. WARNING Hazardous Voltage w/Capacitors! 9. Install the filed supplied controls. Disconnect all electric power, including remote 10. Complete all interconnection wiring. disconnects and discharge all motor start/run capacitors before servicing. Follow proper lockout/ 11.
Filters should be installed where required. 3. The LSC unit is equipped with either a manual control or This section addresses the Titus ECM motor which is a remote control PWM fan speed controller, mounted on standard on all LSC units. The ECM motor provides the side of the line voltage control enclosure.
1 and 99. Long flashes Titus. Refer to the fan specifications, data and charts to represent the tens digit, and short flashes represent the convert the flow index to torque or mass airflow.
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DLSC-IOM-13.0 ECM Overview and Setup Remote PWM Signal Interface Board Details Input / Outputs Input Jumpers Power Supply: 18-30 VAC, 60Hz M – Enables SET SPEED potentiometer SIGNAL & COMMON: 0-10VDC = 0-100% PWM request manual override (bypassed when ECM supplied feedback: 5VDC (motor at rest or not connected) automation SIGNAL exceeds 0.2VDC).
DLSC-IOM-14.0 Pre Start-Up Pre-Startup Checklist Unit Piping 1. Properly vent the hydronic coil to allow water flow Complete this checklist after installing the unit to verify all through the unit. recommended installation procedures are complete before unit startup. This does not replace the detailed instructions 2.
DLSC-IOM-15.0 Maintenance Maintenance Procedures Coil Maintenance Perform the following maintenance procedures to ensure proper unit operation. Keep coils clean to maintain maximum performance. For operation at its highest efficiency, clean the coil often WARNING during periods of high demand or when dirty conditions prevail.
DLSC-IOM-16.0 Maintenance (Cont) Hydronic Coil Cleaning Procedure Work Instruction Steps In general, replacement of a motor needs to be carried out 1. Disconnect all electrical power to the unit. 2. Don the appropriate personal protective equipment as follows: (PPE). 3. Access both sides of the coil.
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