FIGURE 4
HEAT PUMP WITH OPTIONAL MFAD, CRV and ERV VENTILATION
PACKAGING WITH
Low Voltage Wiring Diagram
Thermostat
#TH5220D1151 C G R Rc Y E AUX O/B Bard part
1
"L" is constant 24V output when thermostat is in Em Heat mode
L | 1 Stage Cool | |
2 Stage Heat | ||
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1 | 2 | 3 | 4 | 5 | 6 | Optional CO2 Controller |
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| Bard part |
24V Low Voltage | C | G | R Y1 Y | ||
Terminal Block | |||||
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| 2 |
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| Red | |
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| Orange | ||
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| Black | |||
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Black
1Factory Jumper Installed Connect orange wire to "G"
2only if optional CO2 controller is used.
E W2 | B W1 W3 DH | O1 L | Unit |
| 1 |
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CRV | Brown/White |
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ERV |
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Ventilation Packages |
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MFAD | Red |
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Manual | |
Page | 8 of 19 |
