Orion-system MHGRV III Manual de usuario descargar pdf (Pagina 13)

Operator Interface

MHGRV III Controller Technical Guide

Field Testing

For ﬁ eld testing purposes, the modulating hot-gas valves can be forced

to full Cooling or full Reheat via DIP switch settings on the MHGRV

III controller. See Table 1 for mode of operation and valve positioning

during force modes.

MHGR Valve - Position & Operation

Setpoint Value Reset Limit

Value

Mode of

Operation

HGR Valve

Position

1 3 Full Cooling 100% Closed

3 1 Full Reheat 100% Open

Half Reheat/

Cool

50% Open/

Table 1: MHGR Valve Position & Operation

DIP Switch Settings

NOTE: For a value of 1, only turn on DIP switch labeled 1. For a

value of 3, turn on DIP switches 1 and 2. The DIP switches

are added together to complete a speciﬁ c value.

WARNING: When force mode testing is complete, reset the DIP

switch settings to a valid temperature setting.

Do not leave the MHGRV DIP switches set in force

mode when leaving the job site.

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Orion-system MHGRV III Manual de usuario Pagina 13