Danfoss H1 P Installation guide

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Service Kit Instructions

H1 valve plate

Proper orientation

These valve plates are manufactured with large locator pin notches on opposite sides

from each other and smaller identication notches. The large notches are to t over

the locator pin in the pump end cap or center section. The large notch on one side is

to be used with Electric Displacement Control (EDC), Forward-Neutral-Reverse (FNR)

controls, or Manual Displacement Control (MDC) and the large notch on the opposite

side is to be used with Non-Feedback Proportional Electric (NFPE), Automotive Control

(AC), or Fan Drive Control (FDC). The various control types require dierent valve plate

timing. The large notch that has small notches at one side of it is to be used with EDC,

FNR, or MDC controls. The large notch that has small notches on both sides of it is to be

used with NFPE, AC, or FDC controls. The small notches are also used to identify valve

plate rotation. Three small notches indicate a CW (right hand) rotation valve plate, and

a valve plate with six small notches indicates CCW (left hand) rotation.

Proper valve plate

orientation

CCW

11071901

Valve plate kit, CW

11071912

Valve plate kit, CCW

Notch used for NFPE or AC controls

Notch used for EDC or FNR controls