Converting To A Dedicated Cooling Unit - York YAWS018 - 075 Installation Manual

Converting to a Dedicated Cooling Unit

Procedure to Convert a Heating Only Unit to a
Cooling Only Unit
All non-reversible units are built at the factory as dedicated
heating units. Follow the procedures below to make the unit
a dedicated cooling unit.
1. Shut off all power to the unit.
2. Remove the top and front access panel.
3. Refer to the labels on the unit for the location of ports
and lines.
4. Connect the "Source Water-In" line to the port marked
"Load Water-In." Then, connect the "Source Water-Out"
line to the port marked "Load Water-Out."
5. Connect the "Load Water-In" line to the port marked
"Source Water-In." Then, connect the "Load Water-Out"
line to the port marked "Source Water-Out."
6. Flip flop locations for "FP1" and "FP2" thermistors. FP1
gets installed where FP2 is and FP2 installs where FP1
was.
7. Replace the top and front access panel.
8. Make sure all screws have been re-installed.
9. Turn on the power.
NOTE: A reversible unit can not be configured to heating only.
AFFINITY SINGLE STAGE HYDRONIC INSTALLATION MANUAL
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