Bard T-H, W-H-D, S-H-D, T-H-D, S-H User Manual
...
INSTALLATION INSTRUCTIONS
SINGLE STAGE HEAT PUMPS
LOW VOLTAGE
CONTROL CIRCUIT WIRING
MODELS
W**H W**H*D
S**H S**H*D
T**H T**H*D
Bard Manufacturing Company, Inc.
Bryan, Ohio 43506
Since 1914...Moving ahead just as planned.
Manual : 2100-516H
Supersedes: 2100-516G
File: Volume III Tab 16
Date: 03-28-14
Manual 2100-516H
Page 1 of 19
Contents
Installation Instructions
Wiring – Low Voltage Wiring
Operating Voltage Range
Low Voltage Connection
Figures
Figure 1 Basic HP w/Opt. Elec. Heat .....................5
Figure 2 HP w/Opt. MFAD, CRV & ERV Vent. Pkg.
w/Programmable T-Stat ...........................6
Figure 3 HP w/Opt. MFAD, CRV & ERV Vent. Pkg.
w/Non-Programmable T-Stat ....................7
Figure 4
w/Non-Programmable Thermostat with ...
CO2 Controller .........................................8
Figure 5 Heat Pump w/Opt. Economizer
"E" Vent Option ........................................9
Figure 6 HP w/Dehumidication Sequence & No
Vent Pkg. Using T-Stat Comb. ...............10
Figure 7 HP w/Dehumidication Sequence w/
Non-Programmable T-Stat ......................... 11
Figure 8 HP w/Dehumidication Sequence & Opt.
MFAD, CRV, & ERV Vent Pkg.
Using Elec. T-Stat with Combination
Temp. & Humidity Control ......................12
Figure 9 HP w/Dehumidication Sequence & Opt.
MFAD, CRV & ERV Vent. Pkg.
Using Non-Prog. T-Stat.
(No Occupied Signal) .............................13
Figure 10
MFAD, CRV & ERV Vent. Pkg.
Using Non-Prog. T-Stat. with
CO2 Controller ........................................14
Figure 11 Heat Pump w/CS2000A* ........................15
Figure 12 W**H1 Dehum. with Economizer and
#8403-060 Thermostat (EIFM)
"E" Vent Option ......................................16
Figure 13 1-Stage HP w/Opt. Elec. Heat with or w/o
Dehum. with ECONWM* Style Economizer
"W" or "T" Vent Option ...........................17
Figure 14 HP w/Opt. CRVMP Vent Pkg. with
Programmable T-Stat .............................18
Figure 15
with Non-Programmable T-Stat ............ 19
HP w/Opt. MF AD, CRV & ERV V ent. Pkg.
HP w/Dehumidication Sequence & Opt.
HP w/Opt. MFAD, CRV & ERV Vent Pkg.
.....................................3
..........................................3
...........................................3
Wiring Diagram
Figure 11 Heat Pump w/CS2000A* ........................15
Tables
Table 1 Diagram to Use w/Unit & Vents ................3
Table 2 Operating Voltage Range .........................3
Table 3 Wall Thermostat .......................................3
Table 4 Humidity Controls .....................................4
Table 5 CO2 Controller ..........................................4
Table 6 Thermostat Wire Size ...............................4
Manual 2100-516H
Page 2 of 19
TABLE 1
DIAGRAM TO USE WITH UNIT AND VENTS
Vent None CRV, ERV, MFAD
System
Heat Pump
Heat Pump with
Dehumidication
Vent Code X R, M, V, P C E T, W, S
Thermostat Programmable Programmable Programmable Programmable Programmable All
Model Series No Yes No Yes No Yes No Yes No Yes
S**H
T**H
W**H
S**H*D
T**H*D
W**H*D
1 1 3 & 4 2 15 14 N/A 5 N/A 13 11
7 6 9 & 10 8 N/A 14 N/A 12 N/A 13 N/A
WIRING – LOW VOLTAGE WIRING
230/208V, 1 phase and 3 phase equipment dual primary
voltage transformers. All equipment leaves the factory
wired on 240V tap. For 208V operation, reconnect
from 240V to 208V tap. The acceptable operating
voltage range for the 240V and 208V taps are:
TABLE 2
OPERATING VOLTAGE RANGE
TAP RANGE
240V 253 – 216
208V 220 – 187
NOTE: Thevoltageshouldbemeasuredattheeldpower
connectionpointintheunitandwhiletheunit
isoperatingatfullload(maximumamperage
operatingcondition).
An 18 gauge copper, color-coded thermostat cable is
recommended. The connection points are shown in this
Manual. See Table above.
Low Voltage Connection
These units use a grounded 24-volt AC low voltage
circuit.
The “R” terminal is the hot terminal and the “C”
terminal is grounded.
“G” terminal is the faninput.
“Y” terminal is the compressorinput.
“B” terminal is the reversingvalveinput. The reversing
valve must be energized for heating mode.
“R” terminal is the 24 VAC hot.
“C” terminal is the 24 VAC grounded.
CRVMWH-3
CHCRV-5
EIFM
Economizer
ECONWM*
CS2000A*
“L” terminal is compressorlockoutoutput. This
terminal is activated on a high or low pressure trip by the
electronic heat pump control. This is a 24 VAC output.
“W2” terminal is second stage heat (if equipped).
“O1” terminal is the ventilationinput. This terminal
energizes any factory installed ventilation option.
“E” terminal is the
emergencyheatinput. This terminal
energizes the emergency heat relay.
“W3” terminal is the dehumidicationinput. This
terminal energizes compressor, blower and three-way
valve.
LOW VOLTAGE CONNECTIONS
FOR DDC CONTROL
Fan Only Energize G
Cooling Mode Energize Y, G
Heat Pump Heating Energize Y, G, B
2nd Stage Heating
Energize G, W2, Y, B
w/Heat Pump (if employed)
Ventilation Energize G, O1
Emergency Heat
Energize B, W2, E, G
Dehumidication EnergizeW3
TABLE 3
WALL THERMOSTAT
Part Number Predominate Features
8403-058
(TH5220D1151)
8403-060
(1120-445)
2 stage Cool, 2 stage Heat - Conventional
1 stage Cool, 2 stage Heat - Heat Pump
Electronic Non-Programmable
Auto or Manual changeover
3 stage Cool; 3 stage Heat
Programmable/Non-Programmable Electronic
HP or Conventional
Auto or Manual changeover
Dehumidication Output
Manual 2100-516H
Page 3 of 19
TABLE 4
HUMIDITY CONTROLS
Part Number Predominate Features
8403-038
(H600A1014)
8403-047
(H200-10-21-10)
SPDT switching, pilot duty 50VA @ 24V
Humidity range 20-80% RH
Electronic dehumidistat SPST closes-on-rise
Humidity range 10-90% with adjustable stops
TABLE 5
CO2 CONTROLLER
Part Number Predominate Features
Normally Open SPST relay closes-on-rise
8403-067
24V dual wave length sensor. Default setting
950ppm, adjustable to 0-2000ppm
Default off setting 1000ppm, adjustable to
0-200 ppm can be calibrated
Transformer
VA
55 2.3
TABLE 6
THERMOSTAT WIRE SIZE
FLA
Wire
Gauge
20 gauge
18 gauge
16 gauge
14 gauge
12 gauge
Maximum
Distance
In Feet
45
60
100
160
250
Manual 2100-516H
Page 4 of 19
FIGURE 1
C
Factory Jumper Installed1
Unit
1
24V Low Voltage
Terminal Block
W3 E L DH O1W2W1Y1 BYRG
MIS-2645 C
Aux
Low Voltage Wiring Diagram
C G R Rc Y O/B
1
L E
W1/E
C
Bard part #8403-058
#TH5220D1151
Thermostat
2 Stage Heat
1 Stage Cool
Programmable
Electronic
Bard part #8403-060
AY2L
Y O/D
Thermostat
W2G R Y1 O/B
"L" is constant 24V output
when
thermostat is in Em Heat mode
BASIC HEAT PUMP WITH OPTIONAL ELECTRIC HEAT
NO ECONOMIZER or VENTILATION PACKAGES
Manual 2100-516H
Page 5 of 19
FIGURE 2
1 652 4
3
3
4
if optional CO controller is used.
Unit
C G R
YEY1
W2 W1
O1
DH
L
B W3
Terminal Block
24V Low Voltage
Ventilation Packaging with Programmable Thermostat (Recommended)
Figure 2
Low Voltage Wiring Diagram
C O/BY1RG W2
Y O/D
W1/E
Heat Pump with Optional MFAD, CRV, and ERV
Bard part #8403-060
Thermostat
Programmable
L A
Y2
Red
Orange
Black
2
Brown/White
Ventilation Packages
Electronic
Red
Factory Jumper Installed
Do not connect "A" from tstat #8403-060
Black
MFAD
2
ERV
CRV
during scheduled occupied periods
set to programmed for the "A" output to function
Must be configured to programmable and fan
2
2
4
optional CO controller is used.
Connect orange wire to "G" only if
3
1
2
1
MIS-2633 C
Optional CO Controller
Bard part #8403-067
HEAT PUMP WITH OPTIONAL MFAD, CRV & ERV
VENTILATION PACKAGING WITH PROGRAMMABLE THERMOSTAT (RECOMMENDED)
Manual 2100-516H
Page 6 of 19
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