Field Conversion Of Air Discharge - Heat Controller HEV Series Installation, Operation & Maintenance Manual

Residential packaged geothermal heat pump 2 to 5 tons

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Engineering design manual (36 pages)

Table Of Contents

Table of Contents

Heat Controller, Inc.

Overview - Horizontal units can be ﬁ eld converted

between side (straight) and back (end) discharge using the

instructions below.

Note: It is not possible to ﬁ eld convert return air between left

or right return models due to the necessity of refrigeration

copper piping changes.

Preparation - It is best to ﬁ eld convert the unit on the ground

before hanging. If the unit is already hung it should be taken

down for the ﬁ eld conversion.

Side to Back Discharge Conversion

Place unit in well lit area. Remove the screws as shown

in Figure 8 to free top panel and discharge panel.

Lift out the access panel and set aside. Lift and rotate

the discharge panel to the other position as shown,

being careful with the blower wiring.

Check blower wire routing and connections for tension or

contact with sheet metal edges. Reroute if necessary.

Check refrigerant tubing for contact with

other components.

Reinstall top panel and screws noting that the location

for some screws will have changed.

Manually spin the fan wheel to ensure that the wheel is

not rubbing or obstructed.

Replace access panels.

Back to Side Discharge Conversion - If the discharge is

changed from back to side, use above instruction noting that

illustrations will be reversed.

Left vs. Right Return - It is not possible to ﬁ eld convert

return air between left or right return models due to the ne-

cessity of refrigeration copper piping changes. However, the

conversion process of side to back or back to side discharge

for either right or left return conﬁ guration is the same. In

some cases, it may be possible to rotate the entire unit 180

degrees if the return air connection needs to be on the op-

posite side. Note that rotating the unit will move the piping to

the other end of the unit.

HEV/H SERIES