Bard GSVS242-A, GSVS302-A, GSVS361-A, GSVS421-A, GSVS481-A Installation Instructions Manual

INSTALLATION
INSTRUCTIONS

WATER SOURCE
HEAT PUMPS

Models:

GSVS242-A, GSVS302-A
GSVS361-A, GSVS421-A
GSVS481-A, GSVS601-A

Ground Water Temperatures 45° - 75°

Earth Loop Fluid

Temperatures 25° - 110°

Bard Manufacturing Company, Inc.
Bryan, Ohio 43506

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

Manual: 2100-317J
Supersedes: 2100-317
File: Volume I, Tab 8

Date: 05-16-08

Manual 2100-317J
Page 1 of 39

I

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 .............................................................. 13

Control Circuit Wiring ............................................ 13

Wall Thermostats................................................... 13

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

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

Blower Control Setup ............................................. 14

Humidity Control .................................................... 14

CFM Light .............................................................. 14

Wiring Diagrams ............................................ 16 & 17

Closed Loop (Earth Coupled Ground Loop Applications)

Note .............................................................. 18

Circulation System Design .................................... 18

Start Up Procedure for Closed Loop System ......... 19

Open Loop (Well System Applications)

Note .............................................................. 21

Water Connection .................................................. 21

Well Pump Sizing .......................................... 21 & 22

Start Up Procedure for Open Loop System ........... 23

Water Corrosion ............................................ 23 & 24

Remedies of Water Problems................................ 24

Lake and/or Pond Installations ...................... 24 & 25

Sequence of Operation

Blower .............................................................. 26

Cooling .............................................................. 26

Heating Without Electric Heat ............................... 26

Heating With Electric Heat .................................... 26

Emergency Heat .................................................... 26

Lockout Circuits ..................................................... 26

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

System Start Up..................................................... 26

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

Quick Reference Troubleshooting Chart ............... 31

Service

Service Hints ......................................................... 32

Unbrazing System Components ............................ 32

Troubleshooting GE ECM™ Motors .............. 33 & 34

Accessories

Add-On DPM26A Pump Module Kit ....................... 35

General .............................................................. 35

Installation ............................................................. 35

Ground Source Heat Pump

Performance Report .......................................... 36-37

Figures

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

Figure 2 Field-Conversion to Left Hand Return .. 10
Figure 3A Filter Components GSVS24-42 Models .11
Figure 3B Filter Components GSVS48-60 Models .11

Figure 4 Piping Access ....................................... 12

Figure 5 Blower Control Board ............................ 15

Figure 6 Circulation System Design .................... 18

Figure 7 .............................................................. 20

Figure 8 Model GPM-1 Loop Pump Module ........ 20

Figure 9 Model GPM-2 Loop Pump Module ........ 20

Figure 10 Water Connection Components ............ 22

Figure 11 Cleaning Water Coil .............................. 24

Figure 12 Lake or Pond Installation ...................... 25

Figure 13 .............................................................. 27

Figure 14 Control Panel ........................................ 27

Figure 15 .............................................................. 28

Figure 16 Pressure Table Cooling ......................... 29

Figure 16A Pressure Table Heating ....................... 30

Figure 17 Control Disassembly ............................. 34

Figure 18 Winding Test .......................................... 34

Figure 19 Drip Loop ............................................... 34

Figure 20 Typical Pump Kit Connection (DPM26A) ..... 35

Manual 2100-317J
Page 2 of 39

Wiring Diagrams ................................................ 38-39

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 6 Control Circuit Wiring ............................ 13

Table 7 Wall Thermostat .................................... 13

Table 8 Blower Control Setup ............................ 14

Table 9 Constant Flow Valves ........................... 21

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 2100-317J
Page 3 of 39

WATER SOURCE PRODUCT LINE NOMENCLATURE

GS V S 36 1- A

Modification Code

Approximate Capacity Size On High Speed

S = Single Capacity Compressor

V = Vertical

Ground Source Heat Pump

Electrical Characteristics

A = 230/208-60-1

TABLE 1

1

INDOOR BLOWER PERFORMANCE (RATED CFM)

2

LEDOM

242SVSG01.006.00050080080001
203SVSG51.006.0055000100010001
163SVSG51.006.0526002100210521
124SVSG02.006.0576052105210521
184SVSG02.006.0008004100410091
106SVSG02.006.0009006100610091

detaR

PSE

XAM
PSE

suounitnoC

wolfriA

3

4

detaR

gnilooC

MFC

detaR

gnitaeH

MFC

cirtcelE

taeH

MFC

1 Motor will deliver consistent CFM through voltage supply range with no deterioration

(197-253V for all 230/208V models).

2 Continuous CFM is the total air being circulated during continuous (manual fan) mode.
3 Will occur automatically with a call for “Y” for cooling mode operation.
4 Will occur automatically with a call for “W1” for heating mode operation.

EXCEPTION: The rated CFM maybe adjusted +/- 15%, see Table 8. The CFM light on the Blower Control

Board can also be used to “count” the CFM of delivered air, see section on CFM light.

Manual 2100-317J
Page 4 of 39

SLEDOM

TABLE 2

FLOW RATES FOR VARIOUS FLUIDS

A-242SVSGA-203SVSGA-163SVSGA-124SVSGA-184SVSGA-106SVSG

56789 21

edirolhCmuidoS%51MPGderiuqeretarwolF

retawhserfMPGderiuqeretarwolF 345568

SDIULFSUOIRAV

4SG%52MPGderiuqeretarwolF 56789 21

TABLE 3

SPECIFICATIONS

)HPV/Z06(gnitaRlacirtcelE1-802/0321-802/0321-802/0321-802/0321-802/0321-802/032

egnaRegatloVgnitarepO791-352791-352791-352791-352791-352791-352

LEDOMA-242SVSGA-203SVSGA-163SVSGA-124SVSGA-184SVSGA-106SVSG

hcnIrePsniF/swoR/.tF.qSaerAecaF51/3/61.351/3/61.311/4/61.311/4/61.311/3/33.511/4/33.5

tnerruCnoitceleStiucriChcnarB0.010.115.310.615.810.52

MFC/spmA–rotoMrewolB008/6.10001/3.20021/9.20521/5.30041/5.20061/5.3

yticapmAtiucriCmuminiM0.510.710.020.420.620.53

802/032spmAtinUlatoT1.9/1.88.11/8.015.41/9.311.91/7.7112/0282/72

ROSSERPMOC

802/032spmAdaoLdetaR5.7/5.65.9/5.86.11/0.116.51/2.415.81/5.716.42/5.32

stloV802/032802/032802/032802/032802/032802/032

802/032spmArotoRkcoL54/5445/455.27/5.2788/88901/901961/961

.dpS/PH–rotoMrewolB elbairaV/2/1elbairaV/4/3

ROTOMREWOLBdnaROTAROPAVE

+ 75°C copper wire ++ HACR type circuit breaker

+eziSeriWdleiF41#41#21#01#01#8#

++rekaerBtiucriCroxaMesuFyaleD025203530455

Manual 2100-317J
Page 5 of 39

TABLE 4

WATER COIL PRESSURE DROP

,163SVSG

ledoM242SVSG203SVSG

MPGGISP.dH.tFGISP.dH.tFGISP.dH.tFGISP.dH.tFGISP.dH.tF

300.113.2------------------------

424.182.300.113.2------------------

538.122.434.103.308.151.4------------

642.271.568.192.482.375.778.226.6------

766.241.603.213.577.410.1133.400.01-----­8------37.203.662.664.4157.582.31-----­9------------57.709.7121.744.6158.398.8

01------------42.943.1244.805.9177.410.11
11------------------27.954.2296.541.31
21------------------59.0192.5216.662.51
31------------------------25.773.71
41------------------------34.874.91
51------------------------43.975.12

124SVSG184SVSG106SVSG

Manual 2100-317J
Page 6 of 39

R

S

MIS-1886

4/3-32224/1-128/1-94/1-44/3-561/1-2

8/5-324/3-12128/5-64/1-44/3-58/7-1

FIGURE 1 – UNIT DIMENSIONS

WATER PIPING

CONNECTIONS

3/4" OR 1" FPT

W

DRAIN

RETURN AIR

FILTER RACK

I

F

B

E

SUPPLY AIR

C

G

3/4" FPT

Q

T

U

V

U

DOMESTIC HOT WATER

HEAT EXCHANGER

WATER CONNECTIONS

J

LOW

VOLTAGE

OPTIONAL

HEATER

PACKAGE

ELECTRICAL

OPENING

H

INLET

UNIT

ELECTRICAL

OPENING

ylppuSnruteR

tcuDegnalFhtdiWthgieH

D

A

N

L

O

P

htdiWhtpeDthgieH

8/5-7262848/7-318/7-312/1-224/1-228/7-64/1-42/1-1234/1-118/5-14/1-14/3-12

8/5-23728/5-558/7-718/7-714/1-524/1-0374/1-42/1-14/1-934/1-118/5-14/1-14/3-12

M

K

ABCDEFGHIJKLMNOPQRSTUVW

24-42SVSG

06-84SVSG

stinU

Manual 2100-317J
Page 7 of 39

HEATER PACKAGE NOMENCLATURE

EH 3 GSV A- A 14 C

Modification Code

GSV = Ground Source Vertical

3 = 3 Ton
5 = 5 Ton

Electric Heater

ELECTRICAL SPECIFICATIONS

htiwesUroF

sledoMSVSG

,A-42SVSG

A-63,A-03

A-24dna

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

esahP/stloV

ZH06

SPMAWKUTBSPMAWKUTB

TABLE 5

Nominal KW

A = 240/208-1-60

dnaWK,spmAretaeH

stloV042@yticapaC

C = Circuit Breaker

)ylnO24-63-03-42SVSG(segakcaPretaeHdellatsnI-dleiFlanoitpO-snoitacificepSlacirtcelE

dnaWK,spmAretaeH

stloV802@yticapaC

muminiM
tiucriC

yticapmA

mumixaM

RCAH

tiucriC

rekaerB

dleiF
eriW

+eziS

htiwesUroF

sledoMSVSG

A-84SVSG

A-06dna

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

retaeH

egakcaP

.oNledoM

C50A-AVSG5HE1-802/0428.815.4543,513.6183.3525,115.325201
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

Manual 2100-317J
Page 8 of 39

)ylnO06-84SVSG(segakcaPretaeHdellatsnI-dleiFlanoitpO-snoitacificepSlacirtcelE

retaeH

egakcaP

esahP/stloV

ZH06

SPMAWKUTBSPMAWKUTB

dnaWK,spmAretaeH

stloV042@yticapaC

dnaWK,spmAretaeH

stloV802@yticapaC

muminiM
tiucriC

yticapmA

mumixaM

RCAH

tiucriC

rekaerB

dleiF
eriW

+eziS

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. Any heat pump is more critical of proper
refrigerant charge and an adequate duct system than a
cooling only air conditioning unit.

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, formerly National Warm Air Heating and Air
Conditioning Association. 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.

compressor compartment and re-securing the control
panel on the opposite side of the water coil. (See Figure

2.) The two (2) access doors from the right hand return
can be transferred to the left-hand return side and the
one (1) left hand panel can be transferred to the right
hand side.

Unit casing suitable for 0 inch clearance with 1-inch
duct clearance for at least the first 4 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 four (4) screws that secure the control panel
cover, removing two (2) screws that hold the control
panel in place, sliding the control panel through the

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 2100-317J
Page 9 of 39

FIELD-CONVERSION TO LEFT HAND RETURN

REMOVE SINGLE AND
DOUBLE DOORS

1 REMOVE 4 SCREWS SECURING

COVER

2 REMOVE 2 SCREWS HOLDING

CONTROL BOX TO CORNER PANEL
REMOVE 2 SCREWS SECURING

PANEL TO BASE.

3 PASS CONTROL PANEL THROUGH

COMPRESSOR SECTION

4 RE-SECURE CONTROL PANEL ON

OPPOSITE SIDE IN SAME MANNER
AS ORIGINALLY ATTACHED

FIGURE 2

REPOSITION DOORS SO DOUBLE DOORS
ARE ON CONTROL PANEL SIDE, AND
SINGLE DOOR ON OPPOSITE SIDE

Manual 2100-317J
Page 10 of 39

TOP VIEW

FILTER

This unit must not be operated without a filter. It comes
equipped with 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 control.
Refer to Table 2 for correct airflow and static pressure
requirements. (See Figures 3A & 3B.)

filled with water prior to start up. The use of plugged
tees in place of elbows to facilitate cleaning is highly
recommended.

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.
The drain line enters the unit through the 3/4" FPT
coupling on the coil side of the unit.

CONDENSATE DRAIN

Determine where the drain line will run. This drain line
contains cold water and must be insulated to avoid
droplets of water from condensing on the pipe and
dripping on finished floors or the ceiling under the unit.
A trap MUST BE installed in the drain line and the trap

FIGURE 3A

GSVS24 - 42 MODELS

PIPING ACCESS TO UNIT

Water piping to and from the unit enters the unit casing
from the coil side of the unit under the return air filter
rack. Piping connections are made directly to the unit
and are 3/4" FPT for models 24 - 42, and 1" FPT for
models 48-60. (See Figure 4.)

FIGURE 3B

GSVS48 - 60 MODELS

MIS-1888

Manual 2100-317J
Page 11 of 39

FIGURE 4

PIPING ACCESS TO UNIT

WATER “IN” CONNECTION
3/4" FPT GSVS24-42 MODELS
1" FPT GSVS48-60 MODELS

WATER “OUT” CONNECTION
3/4" FPT GSVS24-42 MODELS
1" FPT GSVS48-60 MODELS

CONDENSATE DRAIN
3/4" FPT

PUMP MODULE CONNECTIONS
1/2" COPPER STUB

Manual 2100-317J
Page 12 of 39