Daikin Destiny VFD Series Installation And Maintenance Manual page 20

Electric Heat Operation
Heaters are furnished for zero clearance between the duct and combustible
surfaces. However, it is not recommended that any combustible material be
allowed to touch any electric duct heater or immediate surrounding areas.
Heaters are not intended to be installed with less than 20" of straight duct
at the outlet of the heater.
Field wiring necessary temperatures are:
1) 194°F for dry weather.
2) 167°F for humid weather.
IM 782-12 • DESTINY AIR HANDLERS
CAUTION
CAUTION
NOTICE
The sampling probe is suitable for left-hand or right-hand
airflow and in positive pressure applications may require field
adjustment so the probe faces upstream. This is normally done
during installation by removing two screws, rotating the probe
180° and replacing the screws. Removing the heater from the
duct is not necessary.
The electric heater is designed to operate while installed and
connected to the unit at the supply air fan discharge, to heat air
passing through the heating elements.
Temperature rise is very important and can be obtained using
the following calculation:
Temperature Rise = (KW) × (3159) / CFM
NOTE: Maximum leaving air temperature = 120°F
20
Installation
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