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Bard ECONOMIZERS WITH EXHAUST EIFM-5C User Manual

Page 11

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Manual 2100-447C
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11 of 13

FOR AIR CONDITIONING WITH ECONOMIZER
Thermostat Part 8403-058 (Honeywell TH5220D1151)
2 Stage Cool / 2 Stage Heat

WALL THERMOSTATS

FOR HEAT PUMPS WITH ECONOMIZER
8403-060 Programmable or Non-Programmable
Electronic Heat Pump Thermostat
3 Stage Cool / 3 Stage Heat

FIGURE 7

ECONOMIZER OPERATION

FOR SINGLE COMPRESSOR UNIT