Bard GV27S1-A, GV38S1-A, GV61S1-A, GV71S1-A, GV51S1-A Installation Instructions Manual

INSTALLATION
INSTRUCTIONS

WATER SOURCE
HEAT PUMPS

Models:

GV27S1-A, GV38S1-A
GV51S1-A, GV61S1-A

GV71S1-A

Ground Water Temperatures 45° - 75°

MIS-2615

Earth Loop Fluid

Temperatures 25° - 110°

Bard Manufacturing Company, Inc.
Bryan, Ohio 43506

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

Manual: 2100-510E
Supersedes: 2100-510D
File: Volume I, Tab 8
Date: 08-04-09

Manual 2100-510E
Page 1 of 38

CONTENTS

Getting Other Informations and Publications ........ 3

General Information

Water Source Nomenclature ................................... 4

Heater Package Nomenclature ............................... 8

Application and Location

General ................................................................ 9

Shipping Damage .................................................... 9

Application ............................................................... 9

Location ................................................................ 9

Ductwork ................................................................ 9

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

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

Piping Access to Unit..............................................11

Wiring Instructions

General .............................................................. 14

Control Circuit Wiring ............................................ 14

Wall Thermostats................................................... 14

Thermostat Indicators ............................................ 14

Emergency Heat Mode .......................................... 14

Ground Loop (Earth Coupled Water Loop Applications)

Note .............................................................. 16

Circulation System Design .................................... 16

Start Up Procedure for Ground Loop System ........ 17

Ground Water (Well System Applications)

Note .............................................................. 19

Water Connections ................................................ 19

Well Pump Sizing .......................................... 19 & 20

Start Up Procedure for Ground Water System ...... 21

Water Corrosion ............................................ 21 & 22

Remedies of Water Problems................................ 22

Lake and/or Pond Installations ...................... 22 & 23

Sequence of Operation

Blower .............................................................. 24

Part Load Cooling .................................................. 24

Full Load Cooling ................................................... 24

Part Load Heating .................................................. 24

Full Load Heating .................................................. 24

Supplementary Electric Heat ................................. 24

Emergency Heat Mode .......................................... 24

Compressor Control Module .................................. 25

Pressure Service Ports .......................................... 25

System Start Up..................................................... 25

Pressure Tables ............................................. 28 & 29

Quick Reference Troubleshooting Chart ............... 30

Service

Service Hints ......................................................... 31

Unbrazing System Components ............................ 31

Compressor Solenoid ............................................ 31

Troubleshooting GE X13-Series Motors ........ 32 & 33

Accessories

Add-On GVDM-26 Pump Module Kit ..................... 34

General .............................................................. 34

Installation ............................................................. 34

Ground Source Heat Pump

Performance Report .......................................... 35-36

Wiring Diagrams ................................................ 37-38

Figures

Figure 1 Unit Dimensions ...................................... 7

Figure 2 Field-Conversion to Left Hand Return .. 10

Figure 3 Filter Rack Configuration ...................... 12

Figure 4 Piping Access ....................................... 13

Figure 5 Thermostat Wiring ................................ 15

Figure 6 Circulation System Design .................... 16

Figure 7 Temperature & Pressure Measurement ... 18

Figure 8 Model DORFC-1 Flow Center ............... 18

Figure 9 Model DORFC-2 Flow Center ............... 18

Figure 10 Water Connection Components ............ 20

Figure 11 Cleaning Water Coil .............................. 22

Figure 12 Lake or Pond Installation ...................... 23

Figure 13 Component Location ............................. 26

Figure 14 Control Panel ........................................ 26

Figure 15 Refrigerant Flow Diagrams ................... 27

Figure 16A Pressure Tables ....................................... 28

Figure 16B Pressure Tables ....................................... 29

Figure 17 Motor Connections ................................ 32

Figure 18 Motor Connections ................................ 33

Figure 19 Typical Pump Kit Connection ................ 34

Manual 2100-510E
Page 2 of 38

Tables

Table 1 Indoor Blower Performance .................... 4

Table 2 Flow Rates for Various Fluids ................. 5

Table 3 Specifications .......................................... 5

Table 4 Water Coil Pressure Drop ....................... 6

Table 5 Electrical Specifications Optional Field

Installed Heater Package ........................ 8

Table Air Filter Table ........................................11

Table 6 Control Circuit Wiring ............................ 14

Table 7 Wall Thermostat .................................... 14

Table 8 Constant Flow Valves ........................... 19

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 ...................... IGSHPA

the Design of Ground-Coupled Heat Pump Systems

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

Closed-Loop Geothermal Systems .................. IGSHPA

– Slinky Installation Guide

FOR MORE INFORMATION, CONTACT
THESE PUBLISHERS:

ACCA Air Conditioning Contractors of America

1712 New Hampshire Avenue
Washington, DC 20009
Telephone: [phone]
Fax: [phone]

ANSI American National Standards Institute

11 West Street, 13th Floor
New York, NY 10036
Telephone: [phone]
Fax: [phone]

ASHRAE American Society of Heating Refrigerating,

and Air Conditioning Engineers, Inc.

1791 Tullie Circle, N.E.
Atlanta, GA 30329-2305
Telephone: [phone]
Fax: [phone]

NFPA National Fire Protection Association

Batterymarch Park
P.O. Box 9101
Quincy, MA 02269-9901
Telephone: [phone]
Fax: [phone]

IGSHPA International Ground Source

Heat Pump Association

490 Cordell South
Stillwater, OK 74078-8018

Manual 2100-510E
Page 3 of 38

WATER SOURCE PRODUCT LINE NOMENCLATURE

G V 38 S 1 A C

Revision

Level

Ground

Source

Electrical 230/208V 1-Phase

C = Copper Water Coil
N = Cupronickel

Vertical

Step

Capacity

38 = Nominal heating capacity in thousands @ 50° water - Full Load

Nominal cooling capacity in thousands @ 77° brine - Full Load

TABLE 1

INDOOR BLOWER PERFORMANCE (RATED CFM)

1#deepS2#deepS3#deepS4#deepS5#deepS

2

LEDOM

1S72VG3/151.005.00050560080090001
1S83VG2/151.005.005652700957110031
1S15VG2/102.005.0057529051105310051
1S16VG4/302.005.00080501003105410061
1S17VG4/352.005.05780511054157510571

rotoM

PH

3

detaR

PSE

XAM
PSE

4

suounitnoC

wolfriA

5

rehtaeWdliM

ts

1ninoitarepO

gnilooCegatS

).niM-5(edoM

6

daoLtraP
noitarepO

wolfriA

1

7

daoLlluF%01-

wolfriA

)lanoitpO(

8

daoLlluF

dnawolfriA

taeHcirtcelE

edoM

1 Motor will automatically step through the various airflows with thermostatic control
2 ESP = External Static Pressure (inches of water)
3 Maximum allowable duct static
4 Continuous airflow is the CFM being circulated with manual fan operation without any additional function occurring.
5 Will occur automatically for first 5 minutes of Part Load Cooling Operation.
6 Will occur automatically after five minutes of Part Load Cooling Operation.
7 This is a field option for noisy installations to de-rate Full Load airflow (requires change in control panel).
8 Will occur automatically with control signal input (will not be defeated for electric heat operation).

Manual 2100-510E
Page 4 of 38

TABLE 2

FLOW RATES FOR VARIOUS FLUIDS

SDIULFSUOIRAV

retawhserfMPGderiuqeretarwolF 1 5679 01

edirolhCmuidoS%51MPGderiuqeretarwolF7

4SG%52MPGderiuqeretarwolF79215161

1 Rated Flow

TABLE 3

SPECIFICATIONS

LEDOM*A-1S72VG*A-1S83VG*A-1S15VG*A-1S16VG*A-1S17VG

)HP1/ZH06(gnitaRlacirtcelE1-802/0321-802/0321-802/0321-802/0321-802/032

egnaRegatloVgnitarepO791-352791-352791-352791-352791-352

yticapmAtiucriCmuminiM 1 7162238314

eziSeriWdleiF+ 1 21#01#8#6#6#

.rkB.tkCro.xaMesuFyaleD++ 1 0203040505

ROSSERPMOC

stloV802/032802/032802/032802/032802/032

802/032spmAdaoLdetaR1.01/4.85.41/4.216.02/4.714.72/4.225.82/7.42

tnerruCnoitceleS.tkChcnarB2.017.612.124.725.82

802/032spmArotoRkcoL26/2628/2869/69811/811051/051

ROTAROPAVEDNAROTOMREWOLB

epyT/deepS/PH-rotoMrewolBMCE/5/3/1MCE/5/2/1MCE/5/2/1MCE/5/4/3MCE/5/4/3

spmA-rotoMrewolB6.1/5.159.2/5.20.3/8.21.4/8.32.4/1.4

hcnIrePsniF/woR/.tF.qSaerAecaF11/4/61.311/4/61.311/3/33.511/4/33.501/5/33.5

+75°C copper wire ++ HACR type circuit breaker
* C - for copper / N for Cupro-Nickel water coil
1 Heat pump only. Optional field-installed heaters are separate circuit.

SLEDOM

S72VGS83VGS15VGS16VGS17VG

9215161

Manual 2100-510E
Page 5 of 38

TABLE 4

WATER COIL PRESSURE DROP

ledoM

MPG

31.032.0

4 5.0 51.1 9.0 80.2

52.177.24.132.3
6 7.1 29.3 3.2 13.5

73.213.52.383.7216.4
8 1.3 51.7 1.4 64.9 5.2 77.5 2 16.4

91.464.91.577.112.383.74.245.5
01 1.6 70.41 9.3 00.9 8.2 64.6

111.783.617.448.014.348.7
21 2.8 29.81 5.5 96.21 9.3 00.9

314.996.124.667.415.483.01
41 6.01 54.42 3.7 48.61 2.5 00.21

511.896.819.516.31
61 9 67.02 7.6 64.51

719.948.224.770.71
81 4.8 83.91

1S72VG 1S15VG/1S83VG 1S16VG 1S17VG

DISP .dH.tF DISP .dH.tF DISP .dH.tF DISP .dH.tF

Manual 2100-510E
Page 6 of 38

BACK VIEW

Y

MIS-2616

X

W

U

V

FIGURE 1 – UNIT DIMENSIONS

61/7-22/1-18/7-254/1-238/5-12/1-22/1-34/3-9261/31-6261/1-861/5-9161/5-5161/1-28/7-98/5-5261/7-0361/5-1

FILTER RACK

RETURN AIR

I

B

E

RIGHT SIDE VIEW

SUPPLY AIR

J

OPTIONAL

H

HEATER

PACKAGE

ELECTRICAL

LOW

VOLTAGE

G

NOTE A

SEE

VOLTAGE

LOW

ENTRANCE

Y

ENTRANCE

WATER CONNECTIONS

DOMESTIC HOT WATER

HEAT EXCHANGER

C

ENTRANCE

FLOW CENTER

ELECTRICAL

ENTRANCE

DRAIN LOCATION

CONDENSATE

S

NOTE A

SEE

UNIT

ELECTRICAL

ENTRANCE

R

T

R

WATER

CONNECTIONS

CONDENSATE

DRAIN LOCATION

F

TOP VIEW

ylppuSnruteR

tcuDegnalFhtdiWthgieH

8/5-7262848/7-318/7-31814/3-228/7-661/7-22/1-14/1-548/5-138/5-14/1-24/1-361/1-9261/31-5261/3-82/1-912/1-5161/1-28/3-78/1-3261/7-524/1-1

htdiWhtpeDthgieH

8/5-23728/5-558/7-718/7-712/1-328/7-927

ABCDE FGHIJKLMNOP Q RS T UVWXY

1S83-72VG

1S17-15VG

stinU

D

A

FRONT VIEW

LEFT SIDE VIEW

N

M

G

SEE

NOTE A

C

O

Q

P

L

K

R

T

S

NOTE A: PANELS ARE REVERSIBLE ALONG WITH

CONTROL PANELS FOR HEAT PUMP AND

ELECTRIC HEATER PACKAGE FOR BEST

INSTALLATION POSITION.

WATER

CONNECTIONS

CONDENSATE

DRAIN LOCATION

Manual 2100-510E
Page 7 of 38

HEATER PACKAGE NOMENCLATURE

EH 3 GSV A A 14 C

3 = 3 Ton
5 = 5 Ton

Electric

Heater

Ground Source Vertical

Circuit Breaker

Nominal KW

240/208-1-60

Modification

Code

TABLE 5

ELECTRICAL SPECIFICATIONS

segakcaPretaeHdellatsnI-dleiFlanoitpO-snoitacificepSlacirtcelE

esUroF

sledoMhtiw

A-1S72VG

&

A-1S83VG

esUroF

sledoMhtiw

A-1S15VG
A-1S16VG

&

A-1S17VG

+ Based on 75F copper wire. All wiring must conform to National Electrical Code (latest edition) and all local codes.

retaeH

egakcaP

.oNledoM

C50A-AVSG3HE1-802/0428.815.4543,513.6183.3525,115.325201
C90A-AVSG3HE1-802/0425.730.9096,035.2357.6810,329.64058
C41A-AVSG3HE1-802/0423.655.31530,647.8431.01345,434.07084

retaeH

egakcaP

.oNledoM

C90A-AVSG5HE1-802/0425.730.9096,035.2357.6810,329.64058
C41A-AVSG5HE1-802/0423.655.31530,647.8431.01345,434.07084
C81A-AVSG5HE1-802/0420.570.81083,169.465.31530,643.890013

retaeH

egakcaP

esahP/stloV

ZH06

retaeH

egakcaP

ZH06

SPMAWKUTBSPMAWKUTB

esahP/stloV

SPMAWKUTBSPMAWKUTB

dnaWK,spmAretaeH

stloV042@yticapaC

segakcaPretaeHdellatsnI-dleiFlanoitpO-snoitacificepSlacirtcelE

dnaWK,spmAretaeH

stloV042@yticapaC

dnaWK,spmAretaeH

stloV802@yticapaC

dnaWK,spmAretaeH

stloV802@yticapaC

muminiM
tiucriC

yticapmA

muminiM
tiucriC

yticapmA

mumixaM

RCAH

tiucriC

rekaerB

mumixaM

RCAH

tiucriC

rekaerB

dleiF

eriW

+eziS

dleiF
eriW

+eziS

Manual 2100-510E
Page 8 of 38

APPLICATION AND LOCATION

GENERAL

Units are shipped completely assembled and internally
wired, requiring only duct connections, thermostat wiring,
230/208 volt AC power wiring, and water piping. The
equipment covered in this manual is to be installed by
trained, experienced service and installation technicians.

These instructions and any instructions packaged with any
separate equipment required to make up the entire heat
pump system should be carefully read before beginning the
installation. Note particularly any tags and/or labels
attached to the equipment.

While these instructions are intended as a general
recommended guide, they do not in any way supersede any
national and/or local codes. Authorities having jurisdiction
should be consulted before the installation is made.

SHIPPING DAMAGE

Upon receipt of the equipment, the carton should be
checked for external signs of shipping damage. If damage
is found, the receiving party must contact the last carrier
immediately, preferably in writing, requesting inspection
by the carrier’s agent.

APPLICATION

Capacity of the unit for a proposed installation should be
based on heat loss calculations made in accordance with
methods of the Air Conditioning Contractors of America.
The air duct system should be sized and installed in
accordance with Standards of the National Fire Protection
Association for the Installation of Air Conditioning and
Venting systems of Other than Residence Type NFPA No.
90A, and residence Type Warm Air Heating and Air
Conditioning Systems, NFPA No. 90B.

Unit casing suitable for 0 inch clearance with 1-inch duct
clearance for at least the first 3 feet of duct. These units
are not approved for outdoor installation and therefore
must be installed inside the structure being conditioned.

Do not locate in areas subject to freezing in the winter or
subject to sweating in the summer.

Before setting the unit, consider ease of piping, drain and
electrical connections for the unit. Also, for units which
will be used with a field installed heat recovery unit,
consider the proximity of the unit to the water heater or
storage tank. Place the unit on a solid base, preferably
concrete, to minimize undesirable noise and vibration. DO
NOT elevate the base pan on rubber or cork vibration
eliminator pads as this will permit the unit base to act like a
drum, transmitting objectionable noise.

DUCTWORK

If the unit is to be installed in a closet or utility room which
does not have a floor drain, a secondary drain pan under
the entire unit is highly recommended.

DO NOT install the unit in such a way that a direct path
exists between any return grille and the unit. Rather, insure
that the air entering the return grille will make at least one
turn before entering the unit or coil. This will reduce
possible objectionable compressor and air noise from
entering the occupied space.

Design the ductwork according to methods given by the Air
Conditioning Contractors of America. When duct runs
through unconditioned spaces, it should be insulated with
vapor barrier. It is recommended that flexible connections
be used to connect the ductwork to the unit in order to keep
the noise transmission to a minimum.

LOCATION

The unit may be installed in a basement, closet, or utility
room provided adequate service access is insured. The unit
is shipped from the factory as a right hand return and
requires access clearance of two feet minimum to the
access panels on this side of the unit. If unit is to be field
converted to left hand return the opposite side will require
access clearance of two feet minimum.

Unit may be field converted to left hand return by
removing two (2) screws that secure the control panel
cover, removing four (4) screws that hold the control panel
in place, laying the control panel down, sliding it under the
blower and re-securing the control panel on the opposite
side of the unit. (See Figure 2.) The two (2) access doors
from the right hand return can be transferred to the left­hand return side and the one (1) left-hand panel can be
transferred to the right hand side.

WARNING

Failure to provide the 1-inch clearance
between the supply duct and a combustible
surface for the first 3 feet of duct can result in
a fire.

Manual 2100-510E
Page 9 of 38

FIGURE 2

FIELD-CONVERSION TO LEFT HAND RETURN

3

Panel removed for clarity.
Does not need removed
to change control panel location.

1. Remove control panel fill plate.

2. Remove two screws securing control panel to unit.

3. Pass control panel through blower section rotating 180°.

4. Re-secure control panel on opposite si de in same manner
as original ly attached.

5. Move double doors t o control panel side of unit.

2

MIS-2617

1

Manual 2100-510E
Page 10 of 38

FILTER

This unit must not be operated without a filter. It comes
equipped with 2" disposable filters, which should be
checked often and replaced if dirty. Insufficient airflow
due to undersized duct systems or dirty filters can result in
nuisance tripping of the high or low pressure controls.
Refer to Table 2 for correct airflow and static pressure
requirements.

NOTE: The filter rack is installed on the unit as shipped
for right-hand return. If you require left-hand return, you
will need to remove the filter access door and remove the
screws holding the filter rack to the unit (slide downward
from underneath unit top). Invert the filter rack 180° to
move filter access door to the other side of the unit, and
reverse the previous steps (see Figure 3).

CONDENSATE DRAIN

Drain lines must be installed according to local plumbing
codes. It is not recommended that any condensate drain
line be connected to a sewer main.

Determine where the drain line will run and then select one
of four (4) locations for the condensate to exit the unit
casing (see Figure 4). There are knockouts in the unit
casing that can be selected for the condensate exit. Internal
of the unit, there is a clear flexible hose with a termination
fitting installed. When installed properly, this hose will
create a trap internal of the unit and will remain serviceable
if the drain system requires cleaning or service. Supplied in
the parts bag of the unit is a 3/4" PVC male adaptor that
will secure the internal drain components to the sheet metal
casing at the location you selected.

NOTE: You will need to bend the duct attachment flanges
up using duct bills or similar device, as the unit is shipped
with them collapsed.

AIR FILTERS

ledoMeziSretliFytitnauQ

S72VG
S83VG

S15VG
S16VG
S17VG

"2x"52x"021

"2x"52x"612

NOTE: This drain line will contain cold water and must be
insulated to avoid droplets of water from condensing on the
pipe and dripping on finished floors or the ceiling below
the unit.

PIPING ACCESS TO UNIT

Water piping to and from the unit enters the unit cabinet on
either side of the unit. The connection directly at the unit is
a special double o-ring fitting with a retainer nut that secures
it in place. (It is the same style fitting used for the flow
center connection on ground loop applications.) You may
come in and out either side of the unit in any combination as
the installation dictates. One side has both connections
closed off with a double o-ring plug seal with retaining caps.
One or both of these are transferred to opposite side ­depending upon installation requirements.

Note: All double o-ring fittings require “hand tightening
only”. Do not use wrench or pliers as retainer nut can be
damaged with excessive force.

Various fittings are available so you may then connect to
the unit with various materials and methods. These
methods include 1" barbed fittings (straight and 90°), 1"
MPT (straight and 90°), and 1-1/4" hot fusion fitting
(straight only) (see Figures 3 & 4).

Manual 2100-510E
Page 11 of 38

frame 180°

to unit. Rotate filter rack

holding fi lter rack frame

Remove all screws

rack install ed.

Left-hand access filter

FIGURE 3

FILTER RACK – GV MODELS

install ed location.

does not need to be rotat ed. Leave in factory

Filter rack channel on GV51S1,61S1,71S1

MIS-2618

first r em ove filter rack door and filters.

To convert filter rack to left -hand access

Front of Unit

Manual 2100-510E
Page 12 of 38

Filter rack shipped for

right-hand access f rom factory.

Drawing show s dual air filter

models GV51S1,61S1,71S1.

GV27S1,38S 1 have only one air filt er.