Installation manual

01/10/2008 3 HI321
EM-WD***** Electro-Mate Downflow Application
Electro-Mate
nameplate or companion installation manual EI707 is required for correct mechanical
installation. If you do not have manual #EI707 do not attempt to do the mechanical installation, contact
the factory for a replacement manual. The primary installation concerns focusing on the existing furnace
and ducting system’s airflow capacity and necessary plenum baffling required by the specific Electro-
Mate for correct installation. It is true that the WarmFlo II modulating control and the supply sensor
adjust the electric heat or element capacity based upon temperature. But if you do not have the required
CFM airflow (example 20 kW, 1400 CFM), you could have a situation where you cannot heat the house.
Another even more serious situation (because of improper airflow) is when all stages are on at colder
temperatures and the unit is cycling on mechanical safety hi-limit. When cycling on the hi-limit probe,
the WarmFlo II supply sensor basically gets confused because at one point it is way up in temperature and
then the elements simply disappear and it dips down, the net result probably is switching over to standby
at premature intervals. There is no substitute for adequate airflow capacity and plenum baffling.
Generally, a base adapter or raised plenum is required for installation of this DOWNFLOW Electro-Mate.
The instructions in manual EI707 for the field design and fabrication of this base adapter must be
followed in detail.