Emerson 1HDEZ-1521 Thermostat User Manual


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10
INSTALLATION
Installation
Fig. 6 - System Dehumidication with variable speed blower. For systems
where low speed requires connect to normally open 24V powered DHM
terminal for low speed connection on air handler/furnace (24V removed
on dehumidication call).
Wiring Guide for Equipment Accessories
DHM
DHM2
Low Speed
Fan
Transformer
R
C
DHM DRY
RH
DHM2
Fig. 7 - System Dehumidication with variable speed blower. For systems
where low speed requires system 24V on dehumidification connect 24V
to DHM2 with DHM DRY switch in DHM2 position and connect DHM
to low speed connection on air handler/ furnace.
DHM
DHM2
Low Speed
Fan
DHM DRY
RH
DHM2
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