Enertech Global
EAV - EME/EMD Rev. A Models
Installaon and Operaons Manual
The EME/EMD indoor module has been developed to easily
interface with zone control modules that can be used with zone
valves. Hydro-Connect is a good t when there is one fan coil/
air handler, along with some radiant oor heang zones. If
there are only fan coils (no radiant), Enertech recommends the
EWC UZ4 zone panel. Both zone controls support most 24 VAC
thermostats. Review the selecon chart on the next page for the
best match for your applicaon.
Zone valves are recommended to have a CV of at least 8.9 and
have 24VAC actuators. These valves can be powered through
the zone controller via the “R” and “C” terminals on the AV eld
terminal strip, as long as the demand at any me is less than
50VA (approximately 5 valves opening at once). If the load will
exceed this amount, an external transformer is required.
The following pages include diagrams and menus showing how
to interface with the Hydro-Connect zone panels (Enertech P/N
HCC-NN-WVC-ZM for heang/cooling and ATEZVCA for heang
only). High level wiring diagrams show the interface points with
the EME/EMD terminal strip. Note that these examples can
be extended to more zones with extension modules (Enertech
P/N HCE-NN-WVC-ZM). Exact installaon details may require
modicaon of these sengs to suit the applicaon.
1 2 3 4 5 6 7 8 9 10 11 12
: 7, 9, and 11 to be connected to common at the Hydro-Connect zone
panel (OC, Y2C, and Y1C). Pins 7 and 9 must be connected to the RC terminal
at the EWC zone board.
The EME/EMD eld wiring terminal board requires the following
dry contact input pairs:
Radiant heang demand input (outdoor reset controlled
temperature)
Air handler heang demand input (120°F outlet
temperature)
Air handler cooling demand input (low temperature
water)
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Enertech recommends that a
dual sensing thermostat be used for radiant zones when the
fan coil will be used for heang to avoid overheang the slab.
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