The Dac Outputs; Wiring Digital Loads On The Dac - Emerson iPro.Genius Installation And Operational Manual

4.2. The DAC Outputs

Relay Outputs
Analog Outputs
Figure 4-9 - DAC Output Locations
The DAC has 15 relay outputs for connection to all
loads that are typically present for a rooftop unit. The
relay output type and function for each point must be
programmed in the DAC software by the installer.
The DAC supports the following relay outputs:
Relay Output
Alarm Active Alarm Active Output
Cool Stage 1-4 Cool Stage Output
Dehumidifier Digital Dehumidification Active
Econ Enable Economization Enabled
Fan Enable Fan Enable
Primary Heat Stage 1- Primary Heat Stage Output
2
Secondary Heat Stage Secondary Heat Stage Out-
1-2 put
Reversing Valve Heat Pump Reversing Valve
Output
Auxiliary (2) Satellite Outputs Controlled
by E2
Reheat Reheat Output
Table 4-5 - DAC Relay Outputs
10 • The DAC Outputs
Description
The DAC supports the following analog outputs:
Analog Output
Mod Fan (VS) Modulating Fan
Mod Cool (2) Modulating Cool Stages
(including Digital Scroll
compressors)
Mod Heat Modulating Heat
Mod Outdoor Air Modulating Outdoor Air
Damper Damper
Mod Return Air Modulating Return Air
Bypass Bypass
Mod Return Air Modulating Return Air
Damper Damper
Mod VAV Bypass Modulating Variable Air
Damper Volume Bypass Damper
Supply Air SP Reset Supply Air Setpoint Reset
Auxiliary (2) Satellite Outputs Controlled
by E2
Table 4-6 - DAC Analog Outputs
For both relay and analog outputs, the DAC will
drive physical points as well as send the current
output value over MODBUS to E2.
4.2.1. Wiring Digital Loads on the
DAC
The digital output relays are located across four
separate connectors along the top side of the DAC.
Figure 4-10 - Digital Load Connectors
Description
026-1727 Rev 3