Manual Bard 920-0074 qwserv

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  • Bard 920-0074 qwserv - page 1

    Manual 2100-533A Page 1 of 1 2 OPERA TION INSTRUCTIONS Model: 920-0074 QWSER V ENERGY RECOVER Y VENTILA T O R WITH EXHAUST For Use With Bard 2 Through 5 T on QW*S Series Bard Manufacturing Company, Inc. Bryan, Ohio 43506 Since 1914...Moving ahead, just as planned. Manual: 2100-533A Supersedes: 2100- 533 File: Volume II, Tab 14 Date: 12-08-10 ...

  • Bard 920-0074 qwserv - page 2

    Manual 2100-533A Page 2 of 1 2 CONTENTS Electrical S pecifications .............................. ............ 3 General Description of ERV ................................... 3 Control Requirements ............................................ 3 Recommended Control Sequences ....................... 4 Control Wiring ................................. ...

  • Bard 920-0074 qwserv - page 3

    Manual 2100-533A Page 3 of 1 2 GENERAL DESCRIPTION The Energy Recovery Ventilator was designed to provide energy efficient, cost effective ventilation to meet I. A. Q. (Indoor Air Quality) requirements while still maintaining good indoor comfort and humidity control for a variety of applications such as schools, classrooms, lounges, conference room ...

  • Bard 920-0074 qwserv - page 4

    Manual 2100-533A Page 4 of 1 2 The ERV units are wired from the factory on medium intake and low exhaust speeds. The ERV is equipped with independently controlled 3-speed motor to provide the capability of adjusting the ventilation rates to the requirements of the specific application and to be able to provide positive pressure in the structure. Th ...

  • Bard 920-0074 qwserv - page 5

    Manual 2100-533A Page 5 of 1 2 PERFORMANCE AND APPLICATION DATA TABLE 2 SUMMER COOLING PERFORMANCE (INDOOR DESIGN CONDITIONS 75° DB / 62° WB) LEGEND VLT = Ventilation Load – Total HRT = Heat Recovery – Total VLS = Ventilation Load – Sensible HRS = Heat Recovery – Sensible VLL = Ventilation Load – Latent HRL = Heat Recovery – Latent t ...

  • Bard 920-0074 qwserv - page 6

    Manual 2100-533A Page 6 of 1 2 ENERGY RECOVERY VENTILATOR MAINTENANCE GENERAL INFORMATION The ability to clean exposed surfaces within air moving systems is an important design consideration for the maintenance of system performance and air quality. The need for periodic cleaning will be a function of operating schedule, climate, and contaminants i ...

  • Bard 920-0074 qwserv - page 7

    Manual 2100-533A Page 7 of 1 2 CLEANABILITY AND PERFORMANCE In order to maintain energy recovery ventilation systems, energy transfer surfaces must be accessible for washing to remove oils, grease, tars and dirt that can impede performance or generate odors. Washing of the desiccant surfaces is required to remove contaminate buildups that can reduc ...

  • Bard 920-0074 qwserv - page 8

    Manual 2100-533A Page 8 of 1 2 FIGURE 2 BELT REPLACEMENT INSTRUCTIONS Belt Replacement Instructions MIS-2166 Route (1) replacement belt in bottom groove of pulley. Route (1) replacement belt in top groove of pulley. If belts "squeak" or "chirp" lubricate lightly with LPS-1 or equivalent "dry film" lubricant. ...

  • Bard 920-0074 qwserv - page 9

    Manual 2100-533A Page 9 of 1 2 FIGURE 3 HUB ASSEMBLY WITH BALL BEARINGS ...

  • Bard 920-0074 qwserv - page 10

    Manual 2100-533A Page 10 of 1 2 2 1 3456789 1 0 1 1 1 2 2 1 3 208 120 V 480 240 COM 24 2 4 3 1 Contro l Relay Damper Motor 27 3 Motor 12 26 1 Cassett e Motor 25 Motor Pl ug Intake 28 28 28 26 CO2 Disconnect 2 25 25 25 25 28 23 28 23 23 26 26 21 3 4 5 6 7 8 9 10 11 26 Inta ke Damper 4 Blk/Red Black/White White Black (High Speed) Red (Low Speed) Capa ...

  • Bard 920-0074 qwserv - page 11

    Manual 2100-533A Page 11 of 1 2 FIGURE 4 DISCONNECT & TAPE OFF WIRE DISCONNECT AND TAPE OFF FOR CO2 CONTROLLED VENTILATION MIS -2759 ...

  • Bard 920-0074 qwserv - page 12

    Manual 2100-533A Page 12 of 1 2 FIGURE 5 FIELD SET CO 2 SENSOR JUMPERS "AN" SET TO VOL TAGE "SW2 " SET TO ON "O U T" SE T T O 20- 100% AN OFF ON ON OFF 0-100% 20-100% VOLT AGE CURRENT OUT SW2 SW1 "SW1 " SET TO ON MIS-2756 QWSERV VENT PACKAG E CO 2 CONTR OLLER SETTIN G FOR 1000 PP M ...

Manufacturer Bard Category Ventilation Hood

Documents that we receive from a manufacturer of a Bard 920-0074 qwserv can be divided into several groups. They are, among others:
- Bard technical drawings
- 920-0074 qwserv manuals
- Bard product data sheets
- information booklets
- or energy labels Bard 920-0074 qwserv
All of them are important, but the most important information from the point of view of use of the device are in the user manual Bard 920-0074 qwserv.

A group of documents referred to as user manuals is also divided into more specific types, such as: Installation manuals Bard 920-0074 qwserv, service manual, brief instructions and user manuals Bard 920-0074 qwserv. Depending on your needs, you should look for the document you need. In our website you can view the most popular manual of the product Bard 920-0074 qwserv.

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A complete manual for the device Bard 920-0074 qwserv, how should it look like?
A manual, also referred to as a user manual, or simply "instructions" is a technical document designed to assist in the use Bard 920-0074 qwserv by users. Manuals are usually written by a technical writer, but in a language understandable to all users of Bard 920-0074 qwserv.

A complete Bard manual, should contain several basic components. Some of them are less important, such as: cover / title page or copyright page. However, the remaining part should provide us with information that is important from the point of view of the user.

1. Preface and tips on how to use the manual Bard 920-0074 qwserv - At the beginning of each manual we should find clues about how to use the guidelines. It should include information about the location of the Contents of the Bard 920-0074 qwserv, FAQ or common problems, i.e. places that are most often searched by users in each manual
2. Contents - index of all tips concerning the Bard 920-0074 qwserv, that we can find in the current document
3. Tips how to use the basic functions of the device Bard 920-0074 qwserv - which should help us in our first steps of using Bard 920-0074 qwserv
4. Troubleshooting - systematic sequence of activities that will help us diagnose and subsequently solve the most important problems with Bard 920-0074 qwserv
5. FAQ - Frequently Asked Questions
6. Contact detailsInformation about where to look for contact to the manufacturer/service of Bard 920-0074 qwserv in a specific country, if it was not possible to solve the problem on our own.

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