Bard QW242 Manual de usuario

Manual 2100-419E

Page 1 of 48

QW SERIES

WATER SOURCE

PACKAGED HEAT PUMP

INSTALLATION

INSTRUCTIONS

Models:

QW242 QW302

QW361 QW421

QW481 QW601

Manual No.: 2100-419E

Supersedes: 2100-419D

File: Vol II Tab 14

Date: 02-10-06

Bard Manufacturing Company

Bryan, Ohio 43506

Since 1914...Moving ahead, just as planned.

Earth Loop Fluid

Temperatures 25 – 110

Ground Water Temperature 45 – 75

Manual 2100-419E

Page 2 of 48

CONTENTS

Getting Other Information and Publications

For more information, contact these publishers:...... 4

QW General Information

QW Model Nomenclature ........................................ 5

Shipping Damage .................................................... 7

Unit Removal From Skid.......................................... 7

Handling Unit After Removal From Skid .................. 7

Removal of Wall Bracket from Shipping Location ... 8

General.................................................................... 8

Minimum Installation Height..................................... 8

Duct Work...............................................................11

Filters......................................................................11

Condensate Drain...................................................11

Mist Eleminator Service ......................................... 13

Installation Instructions

Mounting the Unit .................................................. 16

Wiring – Main Power ............................................. 19

Wiring – Low Voltage Wiring ................................. 19

General.................................................................. 19

Low Voltage Connections ...................................... 20

Start Up

Description of Standard Equipment ....................... 24

Compressor Control Module.................................. 24

Adjustments ........................................................... 24

Optional CFM ........................................................ 25

Important Installer Note ......................................... 25

Phase Monitor ....................................................... 25

Service Hints ......................................................... 25

Sequence of Operation.......................................... 25

Pressure Service Ports.......................................... 26

Pressure Tables ................................................ 29-30

Optional Accessories ............................................. 31

Closed Loop (Earth Coupled

Ground Loop Applications)

Circulation System Design .................................... 32

Copper Water Coil Application............................... 32

Start Up Procedure for Closed Loop System......... 33

Open Loop (Well SystemApplications)

Water Connections ................................................ 35

Copper Water Coil Limitations ............................... 35

Well Pump Sizing .................................................. 36

Start Up Procedure for Open Loop System ........... 36

Water Corrosion .................................................... 37

Remedies of Water Problems................................ 37

Lake and Pond Installations .................................. 37

Cooling Tower / Boiler Application ......................... 43

Service

Service Hints ......................................................... 43

Unbrazing System Components ............................ 43

Troubleshooting ECM Blower Motors ............. 44-45

Quick Reference Troupbleshooting Chart for

Water to Air Heat Pump.......................................... 46

Ground Source Heat Pump

Performance Report.......................................... 47-48

Manual 2100-419E

Page 3 of 48

Figures

Figure 1 Unit Dimensions..................................... 6

Figure 2 Removal of Unit From Skid .................... 7

Figure 3 Proper Handling of Unit After Removal

from Skid................................................ 8

Figure 4 Installation of Unit w/Wall Sleeve .......... 9

Figure 5 Installation With Free Blow Plenum ..... 10

Figure 6 Ducted Application ............................... 10

Figure 7 Supply Duct Connections .....................11

Figure 8 Condensate Drain................................ 12

Figure 8A Side Drain (Side View)......................... 12

Figure 8B Optional Rear Drain ............................. 12

Figure 8C Rear Drain (Top View).......................... 13

Figure 9 Fresh Air Damper Removal.................. 14

Figure 10 Removal of QTEC ERV......................... 15

Figure 11 Remove Locking Screws from Wheels 16

Figure 12 Unit Mounting Without Wall Sleeve ..... 17

Figure 13 Component Location............................ 18

Figure 14 Low Voltage Wire Harness Plug .......... 20

Figure 15 Remote Thermostat Wiring "X" Option 21

Figure 16 Remote Thermostat Wiring "A" Option 22

Figure 17 Remote Thermostat Wiring "D" Option 23

Figure 18 Fluid Connections w/Ventilation

Wall Sleeve.......................................... 27

Figure 19 Fluid Connections w/o Ventilation

Wall Sleeve.......................................... 28

Figure 20 Circulation System ............................... 32

Figure 21 Water Temperature and Pressure

Test Procedure.................................. 33

Figure 22 Performance Model WGPM-1C ........... 34

Figure 23 Performance Model WGPM-2C ........... 34

Figure 24 Piping Diagram .................................... 35

Figure 25 Cleaning Water Coil............................. 38

Figure 26 Water Well System .............................. 39

Figure 27 Water Source H/P Cooling Cycle......... 41

Figure 28 Water Source H/P Heating Cycle ........ 42

Tables

Table 1 Electrical Specifications ........................... 5

Table 2 Operating Voltage Range....................... 19

Table 3 Wall Thermostats and Subbase

Combinations ......................................... 19

Table 4 Indoor Blower Performance ................... 26

Table 5 Cooling Pressure Table .......................... 29

Table 6 Heating Pressure ................................... 30

Table 7 Optional Accessories ............................. 31

Table 8 Constant Flow Valves............................. 35

Table 9 Water Flow and Pressure Drop.............. 40

CONTENTS

Manual 2100-419E

Page 4 of 48

GETTING OTHER INFORMATION AND PUBLICATIONS

These publications can help you install the air

conditioner or heat pump. You can usually find these at

your local library or purchase them directly from the

publisher. Be sure to consult current edition of each

standard.

National Electrical Code ......................ANSI/NFPA 70

Standard for the Installation .............. ANSI/NFPA90A

of Air Conditioning and

Ventilating Systems

Standard for Warm Air ...................... ANSI/NFPA 90B

Heating and Air

Conditioning Systems

Load Calculation for Residential....... ACCA Manual J

Winter and Summer

Air Conditioning

Duct Design for Residential ............. ACCA Manual D

Winter and Summer Air Conditioning

and Equipment Selection

Closed-Loop/Ground Source Heat Pump ........ IGSHPA

Systems Installation Guide

Grouting Procedures for Ground-Source ......... IGSHPA

Heat Pump Systems

Soil and Rock Classification for the Design.... IGSHPA

of Ground-Coupled Heat Pump Systems

Ground Source Installation Standards ............. IGSHPA

Closed-Loop Geothermal Systems – Slinky.... IGSHPA

Installation Guide

FOR MORE INFORMATION, CONTACT

THESE PUBLISHERS:

ACCA Air Conditioning Contractors of America

1712 New Hampshire Avenue

Washington, DC 20009

Telephone: (202) 483-9370

Fax: (202) 234-4721

ANSI American National Standards Institute

11 West Street, 13th Floor

New York, NY 10036

Telephone: (212) 642-4900

Fax: (212) 302-1286

ASHRAE American Society of Heating Refrigerating,

and Air Conditioning Engineers, Inc.

1791 Tullie Circle, N.E.

Atlanta, GA 30329-2305

Telephone: (404) 636-8400

Fax: (404) 321-5478

NFPA National Fire Protection Association

Batterymarch Park

P.O. Box 9101

Quincy, MA 02269-9901

Telephone: (800) 344-3555

Fax: (617) 984-7057

IGSHPA International Ground Source

Heat Pump Association

490 Cordell South

Stillwater, OK 74078-8018

Manual 2100-419E

Page 5 of 48

QW SERIES WATER SOURCE GENERAL INFORMATION

QW MODEL NOMENCLATURE

1Maximum size of the time delay fuse or HACR type circuit breaker for protection of field wiring conductors.

2Based on 75°C copper wire. All wiring must conform to the National Electrical Code and all local codes.

3These “Minimum Circuit Ampacity” values are to be used for sizing the field power conductors. Refer to the National Electric

Code (latest revision), article 310 for power conductor sizing.

CAUTION: When more than one field power conductor circuit is run through one conduit, the conductors must be derated.

Pay special attention to Note 8 of Table 310 regarding Ampacity Adjustment Factors when more than three

conductors are in a raceway.

MODEL NUMBER

QW - QT

Model

Water Source

Heat Pump

CAPACITY

24 - 2 Ton

30 - 2½ Ton

36 - 3 Ton

42 - 3½ Ton

48 - 4 Ton

60 - 5 Ton

REVISION

VOLTS & PHASE

A - 230/208-60-1

B - 230/208-60-3

C - 460-60-3

0Z - None

VENTILATION OPTIONS

B - Blank-off Plate

X - Barometric Fresh Air

Damper

V - Commercial Ventilator -

Motorized Spring Return

w/Exhaust

P - Commercial Ventilator -

Motorized power return

w/Exhaust

R - Energy Recovery

Ventilator w/Exhaust

FILTER OPTIONS

X - 1 Inch Fiberglass

(Standard)

F - 2 Inch Fiberglass

P - 2 Inch Pleated

INTERNAL CONTROLS

X - Standard

• High Pressure Switch

• Low Pressure Switch

• Compressor Time Delay

CLIMATE CONTROL OPTIONS

X - None

A - Electronic/Non Prog/Man/Auto

D - Electronic/Prog/Man/Auto

COLOR OPTIONS

V - Platinum w/Slate

Front (Vinyl)

4 - Gray (Painted)

QW 36 1 - A 0Z B X V X X X

COIL OPTIONS

X - Standard Cupronickel

Water Coil

4 - Copper Water Coil

TABLE 1

ELECTRICALSPECIFICATIONS

LEDOM

DETAR &STLOV ESAHP

TIUCRICELGNIS

DLEIF.ON REWOP STIUCRIC

MUMINIM TIUCRIC YTICAPMA

MUMIXAM LANRETXE ROESUF TIUCRIC REKAERB

DLEIF REWOP EZISERIW

DNUORG EZISERIW

Z0A-242WQ Z0B-242WQ Z0C-242WQ

1-802/032 3-802/032 3-064

91418

520251

012141

Z0A-203WQ Z0B-203WQ Z0C-203WQ

1-802/032 3-802/032 3-064

126101

030251

012141

Z0A-163WQ Z0B-163WQ Z0C-163WQ

1-802/032 3-802/032 3-064

429101

535251

010141

Z0A-124WQ Z0B-124WQ Z0C-124WQ

1-802/032 3-802/032 3-064

720211

040351

0141

010141

Z0A-184WQ Z0B-184WQ Z0C-184WQ

1-802/032 3-802/032 3-064

134221

545351

010141

Z0A-106WQ Z0B-106WQ Z0C-106WQ

1-802/032 3-802/032 3-064

544361

065402

010121

Manual 2100-419E

Page 6 of 48

FIGURE 1

UNITDIMENSIONS

Manual 2100-419E

Page 7 of 48

SHIPPING DAMAGE

Upon receipt of equipment, the carton should be

checked for external signs of shipping damage. The

skid must remain attached to the unit until the unit is

ready for installation. If damage is found, the receiving

party must contact the last carrier immediately,

preferably in writing, requesting inspection by the

carrier’s agent.

It is recommended that the unit not be removed from the

skid with a fork lift.

The shipping brackets on each side of the unit must be

removed and discarded. See Figure 2-A on Page 7. The

return air grille panel can be removed to provide a place

to hold the unit. The unit can be slid forward on the skid

until the front wheels hang over the edge of the skid.

See Figure 2-B. The unit can be tipped forward and slid

down the edge of the skid until the front wheels touch

the ground. See Figure 2-C. The wheels will not roll.

They are shipped from the factory locked so they will

not roll. The back of the skid will have to be held down

to keep it from tipping up. The skid can be slid out from

under the unit. The unit can then be set upright.

FIGURE 2

REMOVAL OF UNIT FROM SKID

HOLD SKID DOWN

ASHIPPING BRACKETS BFRONT WHEELS OVER EDGE CFRONT WHEELS ON FLOOR

MIS-1603

The unit will have to be turned sideways and removed

from the skid to fit through a 36" doorway. If the door

height allows, the unit can be slid sideways through the

door.

If the unit can not be slid through the door, then the unit

will have to be put on a cart and tipped down to roll

through the door. It is recommended that an appliance

cart by used with a strap to hold the unit on the cart.

The wheels of the unit must be locked. If the wheels

were allowed to roll, the unit could roll off the cart. The

unit should always be carted from the left side. This is

the side where the compressor is located. See Figure 3.

The blade of the appliance cart should be slid under the

wheels of the unit. The strap of the appliance cart

should be placed around the unit and strapped tightly.

Help will be required to tip the unit back onto the cart.

The unit can be leaned far enough back to be rolled

through the door. Be careful when setting the unit back

up to keep from damaging the unit.

UNIT REMOVAL FROM SKID

HANDLING UNIT AFTER REMOVAL FROM

SKID

WARNING

Exercise extreme caution when pushing the

unit on the rollers. Handle and push from the

lower 1/3 of the unit. Insure that debris is not

on the floor where the unit is to be moved on

the rollers. Failure to do so could result in

the unit tipping over and causing bodily injury

and/or damage to the unit.

WARNING

This unit is heavy and requires more than one

person to handle and remove from the skid.

Check unit wheels to ensure that wheels are

locked before removing from skid. Extreme

caution must be taken to prevent injury to

personnel and damage to the unit.

Manual 2100-419E

Page 8 of 48

REMOVAL OF WALL BRACKET FROM

SHIPPING LOCATION (UNITS WITH

BLANK OFF PLATE ONLY)

The wall brackets are attached to the back of the unit.

Remove and retain the wall brackets for use when

attaching the unit to the wall. In units equipped with a

ventilator a wall sleeve is required and these two wall

brackets are not included. A different style bracket is

supplied with the sleeve assembly.

GENERAL

The equipment covered in this manual is to be installed

by trained, experienced service and installation

technicians.

The unit is designed for use with or without duct work.

For use without duct work, Plenum Box QPB** is

recommended.

These instructions explain the recommended method to

install the water source self-contained unit and the

electrical wiring connections to the unit.

These instructions and any instructions packaged with

any separate equipment required to make up the entire

air conditioning system should be carefully read before

beginning the installation. Note particularly “Start

Procedure” and any tags and/or labels attached to the

equipment.

While these instructions are intended as a general

recommended guide, they do not supersede any national

and/or local codes in any way. Authorities having

jurisdiction should be consulted before the installation is

made. See Page 4 for information on codes and

standards.

Size of unit for a proposed installation should be based

on heat loss calculation made according to methods of

Air Conditioning Contractors of America (ACCA). The

air duct should be installed in accordance with the

Standards of the National Fire Protection Systems of

Other Than Residence Type, NFPA No. 90A, and

Residence Type Warm Air Heating and Air

Conditioning Systems, NFPA No. 90B. Where local

regulations are at a variance with instructions, installer

should adhere to local codes.

MINIMUM INSTALLATION HEIGHT

The minimum installation height of the unit with a Free

Blow Plenum is 8 ft. 6 in. This provides enough

clearance for the plenum to be removed. See Figure 5.

The minimum installation height for ducted applications

is 8 ft. 4½ in. This provides enough clearance to install

the duct work. See Figure 6.

FIGURE 3

PROPER HANDLING OF UNIT

AFTER REMOVAL FROM SKID

APPLIANCE

CART

COMPRESSOR

UNIT

(RIGHT SIDE)

STRAP

MIS-1555

Manual 2100-419E

Page 9 of 48

FIGURE 4

INSTALLATION OF UNIT THROUGH WALL WITH WALL SLEEVE

MIS-1564

Manual 2100-419E

Page 10 of 48

FIGURE 6

DUCTEDAPPLICATION

MIS-1558

FIGURE 5

INSTALLATION WITH FREE BLOW PLENUM

CEILING

FLOOR

DUCT FLANGE

DUCT

FIXED CEILINGSUSPENDED

CEILING

FLOOR

MIS-1559

20 IN.

MINIMUM

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