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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. Manual : 2100-516H
Bryan, Ohio 43506 Supersedes: 2100-516G
File: Volume III Tab 16
Since 1914...Moving ahead just as planned.
Date: 03-28-14
Manual 2100-516H
Page 1 of 19
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Contents Installation Instructions Wiring Diagram Figure 11 Heat Pump w/CS2000A* ........................ 15 Wiring – Low Voltage Wiring .....................................3 Operating Voltage Range ..........................................3 Low Voltage Connection ...........................................3 Figures Tables Figure 1 Basic HP w/Opt. Elec. Heat ..................... 5 Table 1 Diagram to Use w/Unit & Vents ................ 3 Table 2 Operating Voltage Range ......................
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TABLE 1 DIAGRAM TO USE WITH UNIT AND VENTS CRVMWH-3 EIFM Vent None CRV, ERV, MFAD ECONWM* CHCRV-5 Economizer CS2000A* Vent Code X R, M, V, P C E T, W, S System Thermostat Programmable Programmable Programmable Programmable Programmable All Model Series No Yes No Yes No Yes No Yes No Yes S**H Heat Pump T**H 1 1 3 & 4 2 15 14 N/A 5 N/A 13 11 W**H S**H*D Heat Pump with T**H*D 7 6 9 & 10 8 N/A 14 N/A 12 N/A 13 N/A Dehumidification W**H*D “L” terminal is compr essor lockout output. This WIRIN
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TABLE 4 HUMIDITY CONTROLS Part Number Predominate Features 8403-038 SPDT switching, pilot duty 50VA @ 24V (H600A1014) Humidity range 20-80% RH 8403-047 Electronic dehumidistat SPST closes-on-rise (H200-10-21-10) Humidity range 10-90% with adjustable stops TABLE 5 CO2 CONTROLLER Part Number Predominate Features Normally Open SPST relay closes-on-rise 24V dual wave length sensor. Default setting 8403-067 950ppm, adjustable to 0-2000ppm Default off setting 1000ppm, adjustable to 0-200 ppm ca
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FIGURE 1 BASIC HEAT PUMP WITH OPTIONAL ELECTRIC HEAT NO ECONOMIZER or VENTILATION PACKAGES Low Voltage Wiring Diagram Thermostat C G R Rc Y O/B Aux L E 1 Stage Cool #TH5220D1151 Bard part #8403-058 2 Stage Heat 1 "L" is constant 24V output when thermostat is in Em Heat mode Electronic Thermostat Y O/D W1/E C G R Y1 O/B W2 L Y2 A Bard part #8403-060 Programmable 24V Low Voltage C G R Y1 Y B W1 W2 W3 E L DH O1 Unit Terminal Block 1 1 Factory Jumper Installed MIS-2645 C Manual 2100-516H Page 5 of
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FIGURE 2 HEAT PUMP WITH OPTIONAL MFAD, CRV & ERV VENTILATION PACKAGING WITH PROGRAMMABLE THERMOSTAT (RECOMMENDED) Figure 2 Heat Pump with Optional MFAD, CRV, and ERV Ventilation Packaging with Programmable Thermostat (Recommended) Low Voltage Wiring Diagram 4 Thermostat Electronic W1/E Y O/D L A C G R Y1 Y2 W2 O/B Bard part #8403-060 Programmable Optional CO Controller 2 1 2 3 4 5 6 Bard part #8403-067 2 24V Low Voltage C G R Y Y1 E W2 B W1 W3 DH L O1 Terminal Block Unit 1 Red 3 Orange CRV Bro
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FIGURE 3 HEAT PUMP WITH OPTIONAL MFAD, CRV and ERV VENTILATION PACKAGING WITH NON-PROGRAMMABLE THERMOSTAT (NO OCCUPIED SIGNAL) Low Voltage Wiring Diagram Thermostat 1 Stage Cool AUX C G R Rc Y E O/B L #TH5220D1151 2 Stage Heat Bard part #8403-058 1 "L" is constant 24V output when thermostat is in Em Heat mode 24V Low Voltage C G R Y Y1 E W2 B W1 W3 L DH O1 Unit Terminal Block 1 2 Red Orange CRV Brown/White 3 ERV Black Ventilation Packages Black MFAD Red Factory Jumper Installed 1 Add jumper, ve
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FIGURE 4 HEAT PUMP WITH OPTIONAL MFAD, CRV and ERV VENTILATION PACKAGING WITH NON-PROGRAMMABLE THERMOSTAT WITH CO2 CONTROLLER "L" is constant 24V output when thermostat is in Em Heat mode Low Voltage Wiring Diagram Thermostat 1 Stage Cool AUX L C G R Rc Y E O/B #TH5220D1151 2 Stage Heat Bard part #8403-058 1 Optional CO 2 Controller 1 2 3 4 5 6 Bard part #8403-067 24V Low Voltage C G R Y1 Y E W2 B W1 W3 DH O1 L Terminal Block Unit 1 Red 2 Orange CRV Brown/White ERV Black Ventilation Packages Bl
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FIGURE 5 HEAT PUMP WITH OPTIONAL EIFM ECONOMIZER “E” VENT OPTION Figure 5 Heat Pump with Optional Economizer Low Voltage Wiring Diagram 2 Thermostat 2 Stage Cool W1/E L G Y1 YO/D C R O/B W2 A Bard part #8403-060 2 Stage Heat 24V Low Voltage CRB W1 E W2 L G Y Y1 DH O1 W3 Terminal Block Unit Y2 Y1 1 1 E F 3 Economizer Wiring Harness MIS-2648 C 1 Factory Jumper Installed. Must be configured for economizer with YO/D output to 2 be active as first stage cooling. These wires are used in special contr
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FIGURE 6 HEAT PUMP WITH DEHUMIDIFICATION SEQUENCE AND NO VENTILATION PACKAGE USING THERMOSTAT #8403-060 COMBINATION TEMPERATURE & HUMIDITY CONTROLLER Figure 6 Heat Pump with Dehumidification Sequence and No Ventilation Package using Thermostat part #8403-060 Combination Temperature and Humidity Controller. Low Voltage Wiring Diagram Thermostat Electronic 2 C G R Y1 W1/E Y2 W2 YO/D O/B L A Bard part #8403-060 Programmable MIS-2636 A 24V Low Voltage C G RE Y1 Y W1 W2 W3 B DHL O1 Terminal Block Un
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FIGURE 7 HEAT PUMP WITH DEHUMIDIFICATION SEQUENCE WITH NON-PROGRAMMABLE THERMOSTAT Low Voltage Wiring Diagram Thermostat 1 Stage Cool AUX C G R Rc Y E O/B L #TH5220D1151 2 Stage Heat Bard part #8403-058 1 "L" is constant 24V output when thermostat is in Em Heat mode 24V Low Voltage C G R Y Y1 E W2 B W1 W3 L DH O1 Terminal Block Unit 1 2 Electronic Humidistat 4 6 5 3 Bard part #8403-047 1 Factory Jumper Installed. 2 Jumper needs to be added. Mechanical Humidistat Red Yellow Bard part #8403-038 M
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FIGURE 8 HEAT PUMP WITH DEHUMIDIFICATION SEQUENCE & OPTIONAL MFAD, CRV & ERV VENTILATION PACKAGING USING ELECTRONIC THERMOSTAT WITH COMBINATION TEMPERATURE & HUMIDITY CONTROL WITH OPTIONAL CO2 CONTROLLER Figure 8 Heat Pump with Dehumidification Sequence and Optional MFAD, CRV, and ERV Ventilation Packaging using Electronic Thermostat with Combination Temperature and Humidity Control with Optional CO Controller 2 Low Voltage Wiring Diagram 2 2 Stage Thermostat Cool Y1 Y2 O/B W2 YO/D W1/E C G R
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FIGURE 9 HEAT PUMP WITH DEHUMIDIFICATION SEQUENCE & OPTIONAL MFAD, CRV & ERV VENTILATION PACKAGING USING A NON-PROGRAMMABLE THERMOSTAT (NO OCCUPIED SIGNAL) Low Voltage Wiring Diagram Thermostat 1 Stage Cool AUX C G R Rc Y E O/B L Bard part #8403-058 2 Stage Heat 1 "L" is constant 24V output when thermostat is in Em Heat mode 24V Low Voltage C G R Y1 Y E W2 B W1 W3 DH O1 L Terminal Block Unit 1 Red 2 Orange CRV Brown/White ERV Black Ventilation 4 Packages MFAD Black RED 1 Factory Jumper Installe
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FIGURE 10 HEAT PUMP WITH DEHUMIDIFICATION SEQUENCE & OPTIONAL MFAD, CRV & ERV VENTILATION PACKAGING USING A NON-PROGRAMMABLE THERMOSTAT WITH CO2 CONTROLLER "L" is constant 24V output when thermostat is in Em Heat mode Low Voltage Wiring Diagram 1 Stage Cool AUX C G R Rc Y O/B E L 2 Stage Heat Thermostat #TH5220D1151 1 Bard part #8403-058 1 2 3 4 5 6 Optional CO 2 Controller Bard part #8403-067 24V Low Voltage Terminal Block O1 E L C G R Y1 Y W2 B W1 W3 DH Unit 1 Red 3 Orange CRV Brown/White ERV
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FIGURE 11 HEAT PUMP WITH CS2000A2 Figure 11 HP WITH CS2000 WH/SH HEAT PUMP CONNECTION DIAGRAM DO NOT CONNECT "L" UNTIL AFTER 8403-060 CONTROLLER IS CONFIGURED TO CS2000 = YES YELLOW TEMPERATURE/HUMIDITY 8403-038 W1/E L YO/D R C G Y1 O/B W2 H600A1014 CONTROLLER BARD P/N 8403-060 HUMIDITY CONTROLLER 1 BLUE RED 8403-047 THERMOSTAT TH5220D1151 C G Y O/B Aux E L R RC 6 5 4 3 H200-10-21-10 BARD P/N 8403-058 DEHUMIDSTAT 1 IF OPTIONAL VENT PACKAGE IS INSTALLED, THE "G" WIRE MUST BE CONNE
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FIGURE 12 W**H1 DEHUM. WITH ECONOMIZER & #8403-060 THERMOSTAT (EIFM) W**H1 Dehum. with Econ. “E” VENT OPTION and #8403-060 Thermostat Thermostat Part #8403-060* W1E YOD C G R W2 L O/B Y2 Y1 WH Unit Low Voltage C GR E W2 L W1 O/B Y Y1 W3 Term. Strip Yellow Y2 Y1 Blue Pink Purple Economizer Vent Option 24 24 56 56 EF 1 3 1 3 *Thermostat Model Configuration Notes: DANGER ! RELAYS AND 1.) Configured for "Heat Pump" ASSOCIATED WIRING 2.) Configured for "Multi-Stage" *ELECTRICAL SHOCK HAZARD ARE FIEL
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FIGURE 13 1-STAGE HEAT PUMP WITH OPTIONAL ELECTRIC HEAT WITH OR WITHOUT DEHUMIDIFICATION WITH ECONWM STYLE ECONOMIZER “W” OR “T” VENT OPTION Low Voltage Wiring Diagram 2 Thermostat YO/D C R O/B W1/E L G A Y2 Y1 W2 part #8403-060 24V Low Voltage CRB W1 E W2 L G Y Y1 DH O1 W3 Terminal Block 1 3 Yellow/White Economizer Wiring Harness Must be energized to enable minimum position. NOTE: Economizer Control Default Setting 1 is 10V (100%). Depending upon application may require setting to lower value
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FIGURE 14 HEAT PUMP WITH OPTIONAL CRVMWH-3 OR CHCRV-5 VENTILATION PACKAGING WITH PROGRAMMABLE THERMOSTAT (RECOMMENDED) Low Voltage Wiring Diagram 4 Thermostat Electronic W1/E Y O/D C G R Y1 Y2 W2 O/B L A Bard part #8403-060 Programmable 3 Optional CO Contr 2 oller 1 2 3 4 5 6 Bard part #8403-067 2 24V Low Voltage C G R E W2 B W1 W3 DH L O1 Y Y1 Terminal Block Unit 1 Yellow Red Orange CHCRV-5 Black OR Ventilation CRVMWH-3 Package MIS-2997 C 1 Factory Jumper Installed Do not connect "A" from tst
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FIGURE 15 HEAT PUMP WITH OPTIONAL CRVMWH-3 OR CHCRV-5 VENTILATION PACKAGING WITH NON-PROGRAMMABLE THERMOSTAT (NO OCCUPIED SIGNAL) Low Voltage Wiring Diagram Thermostat 1 Stage Cool AUX C G R Rc Y E O/B L #TH5220D1151 2 Stage Heat Bard part #8403-058 1 24V Low Voltage C G R Y Y1 E W2 B W1 W3 L DH O1 Terminal Block Unit 1 Yellow 2 Red Orange CHCRV-5 Black OR CRVMWH-3 Ventilation Package Factory Jumper Installed 1 MIS-2998 A Add jumper, ventilation will be active 2 whenever blower operates. Manual
