Bard QW3S1, QW4S1, QW2S1, QW5S1, STAGED CAPACITY PACKAGED HEAT PUMP QW5S1 User Manual

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QW SERIES

GEOTHERMAL R-410A

INSTALLATION

STAGED CAPACITY

INSTRUCTIONS

PACKAGED HEAT PUMP

Models:

QW2S1 QW3S1

QW4S1 QW5S1

Earth Loop Fluid

Temperatures 25 – 110

Ground Water Temperature 45 – 75

MIS-2736

Bard Manufacturing Company, Inc.

Manual No.:

2100-532B

Bryan, Ohio 43506

Supersedes:

2100-532A

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

File:

Vol II Tab 14

Date:

07-19-10

 

 

 

 

 

 

 

 

 

Manual 2100-532B

 

 

 

 

 

 

Page

1 of 46

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 – 13

Mist Eliminator Service ..................................

13 & 14

Installation Instructions

 

 

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

 

15

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

 

18

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

 

18

General ..................................................................

 

18

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

 

19

Start Up

 

 

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

 

23

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

 

23

Adjustments ...........................................................

 

23

Optional CFM ........................................................

 

24

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

 

24

Phase Monitor .......................................................

 

24

Service Hints .........................................................

 

24

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

24 & 25

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

 

25

Pressure Tables .....................................................

 

28

Optional Accessories .............................................

 

29

Manual 2100-532B

Page 2 of 46

Closed Loop (Earth Coupled Ground LoopApplications)

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

30

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

30

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

31

Open Loop (Well System Applications)

 

Water Connections ................................................

33

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

34

Start Up Procedure for Open Loop System ...

34 & 35

Water Corrosion ....................................................

35

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

35

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

36

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

38

Service

 

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

41

Troubleshooting GE ECM™ Blower Motors ...

42-43

Quick Reference Troubleshooting Chart for

 

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

44

Ground Source Heat Pump

 

Performance Report ..........................................

45-46

CONTENTS

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 8A

Condensate Drain ................................

12

Figure 8B

Optional Rear Drain .............................

12

Figure 8C

Rear Drain (Top View)..........................

13

Figure 9

Removal of Q-TEC ERV ........................

14

Figure 10

Remove Locking Screws from Wheels 15

Figure 11

Unit Mounting Without Wall Sleeve .....

16

Figure 12

Component Location............................

17

Figure 13

Low Voltage Wire Harness Plug ..........

19

Figure 14

Remote Thermostat Wiring "X" Option

20

Figure 15

Remote Thermostat Wiring "D" Option

21

Figure 16

Remote Thermostat Wiring "H" Option

22

Figure 17

Fluid Connections w/Ventilation

 

 

Wall Sleeve ..........................................

26

Figure 18

Fluid Connections w/o Ventilation

 

 

Wall Sleeve ..........................................

27

Figure 19

Circulation System ...............................

30

Figure 20

Water Temperature and Pressure

 

 

Test Procedure..................................

31

Figure 21

Performance Model WGPM-1C ...........

32

Figure 22

Performance Model WGPM-2C ...........

32

Figure 23

Piping Diagram ....................................

33

Figure 24

Cleaning Water Coil .............................

36

Figure 25

Water Well System ..............................

37

Figure 26

Water Source H/P Cooling Cycle .........

39

Figure 27

Water Source H/P Heating Cycle ........

40

Figure 28

Control Disassembly ............................

43

Figure 29

Winding Test ........................................

43

Figure 30

Drip Loop .............................................

43

Tables

 

 

Table 1

Electrical Specifications ...........................

5

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

18

Table 3

Wall Thermostats ...................................

18

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

25

Table 5

Pressures ...............................................

28

Table 6

Optional Accessories .............................

29

Table 7 Constant Flow Valves.............................

33

Table 8 Water Flow and Pressure Drop ..............

38

Manual

2100-532B

Page

3 of 46

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/NFPA 90A

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

2100-532B

Page

4 of 46

QW SERIES GEOTHERMAL R-410A STAGED CAPACITY GENERAL INFORMATION

QW MODEL NOMENCLATURE

QW 3 S

MODEL NUMBER |

Q-Tec™ Model

CAPACITY |

2 - 2 Ton

3 - 3 Ton STEP CAPACITY |

4 - 4 Ton

5 - 5 Ton

REVISION |

1 A 0Z B

KW

SPECIALTY 0Z - OKW

PRODUCTS

VOLTS &

PHASE

A - 230/208/60/1

B - 230/208/60/3

C - 460/60/3

VENTILATION OPTIONS

B - Blank-off Plate

V - Commercial Room Ventilator w/Multi-Position Control. Can also be modulating with CO2 control.

R- Energy Recovery Ventilator w/Independent Intake/Exhaust Control.

 

 

X

4

X

 

 

C

X

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

COIL OPTIONS

 

 

FILTER OPTIONS

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

X - 2-Inch Pleated

 

 

 

 

C - Copper (water)

 

 

 

 

 

 

 

 

 

 

 

 

(MERV6)

 

 

 

 

N - Cupronickel

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

INTERNAL CONTROLS

 

COLOR

 

 

 

 

 

 

 

 

 

 

 

X • High Pressure Switch

 

4 - Buckeye Gray paint

 

 

 

 

• Low Pressure Switch

 

X - Beige paint

 

 

 

 

 

 

• Compressor Control Module

 

V - Platinum w/Slate

 

 

 

 

w/Time Delay

 

 

 

 

Front (Vinyl)

 

 

 

 

 

 

• Phase Monitor (3-PH)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CLIMATE CONTROL

Standard -

X - None

D - Electronic/Prog/Man/Auto

H - Electronic/Prog with CO2 control

TABLE 1

ELECTRICALSPECIFICATIONS

SINGLE CIRCUIT

 

 

2

1

1

 

 

 

 

MAXIMUM

 

 

 

 

EXTERNAL

 

RATED

NO. FIELD

MINIMUM

FUSE OR

 

VOLTS, Hz

POWER

CIRCUIT

CIRCUIT

MODEL

& PHASE

CIRCUITS

AMPACITY

BREAKER

 

 

 

 

QW2S1-A0Z 230/208-60-1

1

19

30

QW2S1-B0Z 230/208-60-3

1

14

20

QW2S1-C0Z 460-60-3

1

7

15

 

 

 

 

QW3S1-A0Z 230/208-60-1

1

26

40

QW3S1-B0Z 230/208-60-3

1

20

30

QW3S1-C0Z 460-60-3

1

9

15

 

 

 

 

QW4S1-A0Z 230/208-60-1

1

31

50

QW4S1-B0Z 230/208-60-3

1

27

40

QW4S1-C0Z 460-60-3

1

11

20

 

 

 

 

QW5S1-A0Z 230/208-60-1

1

39

60

QW5S1-B0Z 230/208-60-3

1

29

45

QW5S1-C0Z

460-60-3

1

17

25

 

 

 

 

 

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

2These “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.

Manual

2100-532B

Page

5 of 46

Page

Manual

46 of 6

532B-2100

FIGURE 1

UNIT DIMENSIONS

SUPPLY AIR OPENING

2 1/16"

 

UNIT

DIM. "A"

DIM. "B"

DIM. "C"

DIM. "D"

2 7/16"

2 15/16"

QW2S, QW3S

8 5/8"

42"

30"

43"

1 3/4"

 

 

 

(OPTIONAL) HIGH VOLTAGE

QW4S, QW5S

8 3/4"

48"

40"

49"

 

 

9 15/16"

 

ELECTRICAL ENTRANCE

 

 

 

 

 

 

 

 

 

 

 

 

20 3/8"

(DUCT SIZE)

 

 

LOW VOLTAGE

 

 

 

 

6 3/4"

ELECTRICAL ENTRANCE

 

 

 

 

 

 

 

 

 

 

(OPTIONAL) LOW VOLTAGE

 

 

 

24 15/16"

7/8"

ELECTRICAL ENTRANCE

 

 

TOP VIEW

(DUCT SIZE)

 

 

 

 

 

 

(SHOWN WITHOUT

 

3 3/16"

 

(OPTIONAL) LOW VOLTAGE

FREEBLOW PLENUM)

"A"

 

 

 

 

ELECTRICAL ENTRANCE

 

 

 

 

 

 

 

 

FREEBLOW

(OPTIONAL) HIGH VOLTAGE

 

 

"B"

1 1/8"

PLENUM BOX

ELECTRICAL ENTRANCE

 

 

 

(OPTIONAL)

 

 

 

"C"

 

1 15/16"

 

 

 

 

 

SUPPLY AIR

 

 

1 11/16"

 

14"

 

11 3/4"

 

 

GRILLE

 

 

 

 

 

 

 

 

3 3/4"

3 3/8"

3 3/8"

16 5/8"

(OPTIONAL)

CIRCUIT BREAKER

 

THERMOSTAT

 

ACCESS AND LOCKING

 

 

 

 

COVER

 

 

(OPTIONAL)

 

 

CO2 SENSOR

RETURN AIR

37 1/8"

FILTER

GRILLE

104"

 

 

 

ACCESS

 

 

 

DOOR

15 5/8"

 

 

 

 

 

 

68 3/4"

 

 

 

"C"

36 1/16"

 

36 7/8"

 

 

 

CONDENSER

 

 

 

DOOR

 

 

 

 

"D"

 

 

 

FRONT VIEW

3 1/16"

(OPTIONAL) HIGH VOLTAGE ELECTRICAL ENTRANCE

ACCESS FOR FLUID

CONNECTION FOR DORFC PUMP APPLICATION

6 7/8"

3"

FLUID CONNECTION POINTS FOR FACTORY

RIGHT SIDE VIEW INSTALLED PUMP OPTIONS 3, 4, OR 5 (INLET ON LEFT,

OUTLET ON RIGHT AS VIEWED FROM BACK OF UNIT)

8"

19"

BACK VIEW

VENT EXHAUST

VENT

INTAKE

5 15/16"

5 1/4"

33 9/16"

20"

MIS-2737 B

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.

UNIT REMOVAL FROM SKID

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.

It is recommended that the unit not be removed from the skid with a forklift.

The shipping brackets on each side of the unit must be removed and discarded. See Figure 2-A. 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.

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.

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 be 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.

FIGURE 2

REMOVAL OF UNIT FROM SKID

HOLD SKID DOWN

A SHIPPING BRACKETS

B FRONT WHEELS OVER EDGE

C FRONT WHEELS ON FLOOR

Manual

2100-532B

Page

7 of 46

FIGURE 3

PROPER HANDLING OF UNIT

AFTER REMOVAL FROM SKID

Q-Tec UNIT

(RIGHT SIDE)

STRAP

APPLIANCE CART

COMPRESSOR

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. 9 in. This provides enough clearance for the plenum to be removed. See Figure 5.

The minimum installation height for ducted applications is 8 ft. 9 in. This provides enough clearance to install the duct work. See Figure 6.

Manual

2100-532B

Page

8 of 46

FIGURE 4

INSTALLATION OF UNIT THROUGH WALL WITH WALL SLEEVE

14" to 5"

QW2S, QW3S - 42.000"

QW4S, QW5S - 48.000"

SUPPLY AIR

 

 

OPTIONAL FREE

(X)

18 9/16"

 

BLOW PLENUM BOX

HIGH VOLTAGE ELECTRICAL ENTRANCE (TOP-REAR-SIDE)

RETURN AIR

84 1/4"

103 7/8"

BOTTOM

TRIM PIECE

5"

PERMANENT ROLLERS

WALL SLEEVE

VENTILATION

AIR DIVIDER

33 7/8"

28 7/8"

17 9/16"

35"

6 1/8"

29 1/2"

MIST ELIMINATOR

33"

LOW VOLTAGE ELECTRICAL ACCESS (TOP-SIDE)

CIRCUIT BREAKER, ROTARY,

OR TOGGLE DISCONNECT

AND LOCKING COVER

MIS-2739 A

Manual

2100-532B

Page

9 of 46

FIGURE 5

INSTALLATION WITH FREE BLOW PLENUM

8 FT. - 9 IN.

8 FT. - 8 IN. MINIMUM REQUIRED INSTALLATION HEIGHT

FLOOR

MIS-2740

FIGURE 6

DUCTEDAPPLICATION

SUSPENDED CEILING

 

FIXED CEILING

DUCT

25 IN.

 

 

 

MINIMUM

 

DUCT FLANGE

 

12 IN.

 

 

MINIMUM

 

 

2 IN. MINIMUM

 

 

FROM DUCT FLANGE

 

 

TO DUCT BOTTOM

 

7 FT. - 6 IN.

 

 

9 FT.

8 FT. - 9 IN.

MINIMUM REQUIRED

MINIMUM REQUIRED

UNIT HEIGHT

INSTALLATION HEIGHT

INSTALLATION HEIGHT

 

 

 

 

 

 

 

 

 

 

 

 

 

FLOOR

MIS-2741

Manual

2100-532B

Page

10 of 46

DUCT WORK

Any heat pump is more critical of proper operating charge and an adequate duct system than a straight air conditioning unit. All duct work must be properly sized for the design airflow requirement of the equipment. Air Conditioning Contractors of America (ACCA) is an excellent guide to proper sizing. All duct work or portions thereof not in the conditioned space should be properly insulated in order to both conserve energy and prevent condensation or moisture damage. When duct runs through unheated spaces, it should be insulated with a minimum of one inch of insulation. Use insulation with a vapor barrier on the outside of the insulation. Flexible joints should be used to connect the duct work to the equipment in order to keep the noise transmission to a minimum.

The Q-Tec Series heat pump has provision to attach a supply air duct to the top of the unit. Duct connection size is 12 inches x 20 inches. The duct work is field supplied and must be attached in a manner to allow for ease of removal when it becomes necessary to slide the unit out from the wall for service. See Figure 7 for suggested attachment method.

NOTE: Unit cabinet, supply air duct and free blow plenum are approved for “0” clearance to combustible material.

The Q-Tec Series heat pumps are designed for use with free return (non-ducted) and either free blow with the use of QPB Plenum Box or a duct supply air system.

The QPB Plenum Box mounts on top of the unit and has both vertically and horizontally adjustable louvers on the front discharge grille.

FIGURE 7

SUPPLY DUCT CONNECTIONS

SUPPLY DUCT TO

BE FIELD SUPPLIED

ATTACHMENT

SCREWS TO

BE FIELD

SUPPLIED

DUCT FLANGE

PROVIDED WITH UNIT

ROOM SIDE

OF QW UNIT

MIS-2742

When used with a ducted supply, a QCX Cabinet Extension can be used to conceal the duct work above the unit to the ceiling. This extends 20" above the unit for a total height above the floor of 10'-7/8". The unit is equipped with a variable speed indoor blower motor which increases in speed with an increase in duct static pressure. The unit will therefore deliver proper rated airflow up to the Maximum ESP shown in Table 4. However, for quiet operation of the air system, the duct static should be kept as low as practical, within the guidelines of good duct design.

FILTERS

Two 2-inch pleated filters are supplied with each unit. The filters fit into a fixed rack.

The filters are serviced from the inside of the building . To gain access to the filters release the latch on the circuit breaker door and one 1/4 turn fastener near the bottom of the door. This door is hinged on the left so it will swing open.

The internal filter brackets are adjustable to accommodate 1-inch filters. The tabs for the 1-inch filters must be bent up to allow the 1-inch filters to slide in place.

CONDENSATE DRAIN

The condensate drain hose is routed down from the evaporator drain pan on the right side of the unit into the compressor compartment. There are three locations that the drain can exit the cabinet.

If the drain is to be hard plumbed, there is a 3/4 inch FPT pipe connection located on the cabinet rear panel. In these installations, the drain tube is to be slipped over the pipe connection inside of the cabinet; this is how it is shipped from the factory. (See Figure 8C.)

For a stand pipe type of drain, the drain hose can exit the rear of the cabinet. There is adequate hose length to reach the floor on the right hand side of the unit. (See Figure 8A.)

NOTE: Whichever type of drain connection is used a “P” trap must be formed. See Figure 8A.

Manual

2100-532B

Page

11 of 46

FIGURE 8A

CONDENSATEDRAIN

LOOP TO FORM

A "P" TRAP

DRAIN HOSE

EXTERNAL

DRAIN TUBE

ALTERNATE

FLOOR DRAINING OPTION

FRONT VIEW WITH CONDENSER DOOR REMOVED

MIS-2743

Thedraincanberoutedthroughthefloororthroughthewall. Ifthedrainistoberoutedthroughanunconditioned space, it must be protected from freezing. The drain line must be able to be removed from the unit if it is necessary to remove the unit from the wall.

FIGURE 8B

OPTIONAL REAR DRAIN

Manual

2100-532B

Page

12 of 46

The rear drain can be used with wall thickness of up to 10 inches where a water trap can be installed between the unit and the interior wall. See Figure 8B. The trap cannot extend beyond the edge of the unit or it will interfere with the wall mounting bracket. The drain can be routed through the floor or through the wall. If the drain is routed through the wall, the drain line must be positioned such that it will not interfere with the sleeve flange or the grille. See Figure 8C. If the drain is to be routed through an unconditioned space, it must be protected from freezing.

 

FIGURE 8C

 

REAR DRAIN (TOP VIEW)

 

DRAIN LINE

 

WALL(MAXIMUM

 

10” FOR REAR

 

DRAIN)

SLEEVE

COUPLINGS NOT

 

SHOWN BUT

 

RECOMMENDED

 

FOR EASE OF

 

REMOVABILITY

 

FOR SERVICE

 

WALL BRACKET

WATER

 

TRAP

 

 

UNIT

MIST ELIMINATOR SERVICE (Optional – only used with one of the vent options)

A mist eliminator is supplied with the wall sleeve. The mist eliminator is constructed of aluminum frame and mesh. The mist eliminator is located in the top section of the wall sleeve and can be removed from the inside of the building without removing the unit from the wall. This requires that the ventilation package must be removed.

The steps necessary to remove each of the vent options are listed following.

It is recommended that the mist eliminator be inspected annually and serviced as required. The mist eliminator can be inspected from the outside of the building by looking through the outdoor grille. The mist eliminator can be serviced from the outside. The outdoor grille must be removed to do so.

The mist eliminator can be cleaned by washing with soap and water. The excess water should be shaken off the mist eliminator before it is reinstalled.

COMMERCIAL ROOM VENTILATOR OPTION

Before starting the removal make sure the power has been turned off. The hinged return air grille panel must be opened. The commercial room ventilator (CRV) can be seen after the panel has been removed. The CRV must be removed to gain access to the mist eliminator.

1.The two mounting screws in the front of the CRV must be removed.

2.The power connectors for the CRV (located on the right side of the unit) must be disconnected. Squeeze the tabs on the sides of the connector and pull straight out. Unplug both of the connectors.

3.Slide the CRV straight out of the unit.

The mist eliminator can be seen through the opening in the back of the unit. The mist eliminator must be raised up and the bottom can be pulled toward the front of the unit and removed.

Manual

2100-532B

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Q-TEC ENERGY RECOVERY VENTILATOR

OPTION

Before starting the removal make sure that the power has been turned off. The hinged return air grille panel must be opened. The energy recovery ventilator (QERV) can be seen after the panel is opened. To gain access to the mist eliminator, the QERV must be removed. Refer to Figure 9.

1.The front fill plate of the QERV must be removed. There is one screw on either side of the plate. Remove these screws and remove the plate.

2.On either side of the QERV there are mounting screws that hold the QERV in place. Remove both of these screws.

3.Underneath the heat recovery cassette there is a power connector for the lower blower assembly. To disconnect this plug, the tabs on both sides of the plug must be squeezed to release the plug. While squeezing the tabs, pull the plug out of the socket.

4.The QERV is plugged into the unit on the right side of the unit. Both of these plugs must be disconnected to remove the QERV. Squeeze the tabs on the sides of the connector and pull straight out.

5.Slide the QERV assembly straight out of the unit being careful not to let the cassette slide out of the QERV.

The mist eliminator can be seen through the opening in the back of the unit. The mist eliminator must be raised up and the bottom can be pulled toward the front of the unit and removed.

FIGURE 9

REMOVAL OF THE Q-TEC ENERGY RECOVERY VENTILATOR

POWER

CONNECTORS

MOUNTING

SCREWS

LOWER

BLOWER

ASSEMBLY POWER CONNECTOR

FRONT FILL

Manual

2100-532B

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