Greenheck Fan 45, HRE-20, 90, 55 manual Hre Water Supply Connection Location, Top View

7.Verify that both airflow and system static pressure are in agreement with the specifications.. If these conditions are met, check for water carry over from the discharge side of the media.. If carry over is observed, check the distribution header for holes or tears and the water standoff tube for blockage..

8.After all final adjustments are made, remove the jumper wires, connect “call for cooling” signal, and replace all access panels.. The unit is now ready for operation..

Overflow	Bleed-Off	Pump	Supply	Float
	Valve	Filter	Connection	Valve

Threaded

Float

Adjustment

Water Flow Adjustment DevicePump and Float Components

HRE WATER SUPPLY CONNECTION LOCATION

Model		Water Supply Connection Locations
	A	B	C	D
HRE-20	37..375	4..625	4..625	39..25
HRE-45	38..75	4..625	4..625	43..00
HRE-55	43..50	4..625	4..625	46..125
HRE-90	43..50	4..625	4..625	52..625

Dimensions from outside of unit (in inches)

D

C

Ø 0.875

Run 1/4 inch line up through 7/8 inch hole here and bring around end

of sump to supply connection.

1/4 inch Water Supply Connection

Top View

OA INLET

1/4 inch Water Supply Connection

Ø 0.875

Run 1/4 inch line up through 7/8 inch hole here and bring around end of sump to supply connection.

EA INLET

B

A

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