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EconoMi$er IV (Field-Installed Accessory)
IMPORTANT: For FCQ rooftop units EconoMi$er IV is
available as a factory-installed option for 04-06 units only.
ECONOMI$ER IV STANDARD SENSORS
Troubleshooting instructions are enclosed. A functional view of
the EconoMi$er
®
IV accessory is shown in Fig. 59. Typical set-
tings, sensor ranges, and jumper positions are also shown. An
EconoMi$er IV simulator program is available to help with
EconoMi$er IV training and troubleshooting. See Fig. 60 and
Table 11 for further details.
LEGEND
DCV — Demand Controlled Ventilation
IAQ
— Indoor Air Quality
LA
— Low Ambient Lockout Device
OAT — Outdoor-Air Temperature
POT — Potentiometer
RAT — Return-Air Temperature
Fig. 60 — Typical EconoMi$er IV (W7212 Controller) Wiring
Fig. 59 — EconoMi$er IV Functional View
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Table of Contents
Troubleshooting
