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Table 1. Terminal Designation Descriptions.
Terminal Designation
Description
RC (see Note 1)
Power for cooling--connect to secondary side of cooling system
transformer
R (see Note 1)
Power for heating--connect to secondary side of heating system
transformer
C (see Note 2)
Common wire from secondary side of cooling system transformer
Y
Compressor contactor
G
Fan relay
Y2
Second stage cooling
O/B/W (see Note 3)
Changeover valve for heat pump systems or heat relay
AUX/W2
Auxiliary heat relay for heat pump systems or second stage heat relay
E
Emergency heat relay for heat pump systems
L (see note 4)
Equipment monitor for heat pump systems
Содержание MST03
Страница 1: ...MRCOOL Universal WiFi Thermostat...
Страница 2: ......
Страница 4: ......
Страница 11: ...7 Fig 1 Thermostat Dimensions in inches mm...
Страница 12: ...8 Fig 2 Thermostat back case dimensions in inches mm...
Страница 13: ...9 Fig 3 Thermostat cover plate dimensions in inches mm...
Страница 14: ...10 Fig 4 Selecting thermostat location...
Страница 16: ...12 Fig 5 Mounting wall plate...
Страница 20: ...16 Fig 7 Inserting wires in terminal block IMPORTANT Use 18 gauge thermostat wire...
Страница 35: ...31 Fig 21 Mount thermostat to wall plate...
Страница 48: ...44 OPERATION Fig 23 Thermostat Keys Fan Choose fan mode...
Страница 49: ...45 Fig 24 Thermostat Display...
Страница 64: ...60 Fig 33 Fig 34 4 Press the key on thermostat screen until the flash Fig 35...