MAINTENANCE and Troubleshooting procedure
MAINTENANCE
4. Vacuum dust from the return air grille and | 5. The unit may be wiped with a damp cloth |
coil surface when cleaning the filter. | when needed. |
Note: Do not run the unit without the filter or the grille.
Troubleshooting
EMI Air handlers with
Unit Mount Infrared Controls
! Warning !
All service should be performed by a qualified service technician. Before removing access panels or control covers to expose moving parts of
When
EMI America Series evaporators are designed to operate with EMI America Series condensers. The evaporator (indoor unit) and condenser (outdoor unit) are to be
independently connected to the electrical service panel and protected by separate time delay fuse or HACR breakers. (See the unit name plate for the correct breaker type and size). The indoor and outdoor units are also connected to each other via a 24V inter- connect wiring. a transformer provides the low volt power source for the controls. The number of low volt interconnect conductors will be two to six depending on heating op- tions and or thermostat selection. Intercon- nect wire should be at least 18 awg. Refer to the unit wiring diagram for the interconnect diagram that matches your system.
Figure 1A
Not used 
WLCA/WLHA High Wall Evaporator | 29 | www.enviromaster.com |