I/O Expansion Module - Daikin Enfinity VFC Installation And Maintenance Manual

I/O Expansion Module

This manual covers the installation of a Daikin Vertical
Floor Unit - Model VFC, VFW Water Source Heat Pump.
For installation and operation information on MicroTech
III unit controller and other ancillary components, see:
■ IM 927 - MicroTech III Unit Controller for Water
Source Heat Pumps (L
The I/O Expansion Module is a field-installed option. It
is an extension of the MicroTech III unit controller and
provides extra functionality.
The I/O Expansion Module has 4 main purposes:
■ The MicroTech III unit controller in combination
with the I/O Expansion Module will be the standard
control system for two-stage Water Source Heat
Pump equipment. (i.e. large vertical units).
■ The I/O Expansion Module has outputs to control
electric heat on a standard Water Source Heat
Pump .
■ The I/O Expansion Module has outputs for multi-
speed fans on a standard Water Source Heat Pump.
■
The I/O Expansion Module has an independent LED
annunciator to identify operational fault conditions
on second stage equipment.
IM 930-6 • Enfinity Vertical Water Source Heat Pumps
W ).
on orks
Figure 13: I/O Expansion Module Configuration Jumper
Terminals
Features
Standard Heat Pumps / Single Circuit
Units
■ Monitors entering water temperature for boilerless
electric heat control
■ Outputs for medium and high speed fan controls.
16
C
ontrols
Jumper Terminals
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