Combination Control System Field Wiring; Combination Control System Setup And Startup - Watts AERCO Benchmark OMM-0136 Operation And Service Manual

Benchmark Platinum-Edge [II]: Operation-Service Manual
SECTION 6 – MODES OF OPERATION

6.6.1 Combination Control System Field Wiring

Wiring for this system is between the ACS, the ACS Relay Box, and the terminals in the I/O
Box. Wire the units using a shielded twisted pair of 18 to 22 AWG wire. When wiring multiple
units, each unit's wiring must conform to the above.

6.6.2 Combination Control System Setup and Startup

To setup a boiler for Combination mode:
Combination Control System Setup Instructions
1. As a prerequisite, verify that the unit is not a BST Client or Manager. Go to: Main Menu
→ Advanced Setup → BST Cascade → Cascade Configuration, Unit Mode = Off.
2. On the Controller, go to: Main Menu → Advanced Setup → Unit →Application
Configuration.
3. Press SH Operating Mode and choose Combination.
4. Press the Remote Signal parameter and choose Network.
While it is possible to change other temperature-related functions for Combination mode, these
functions are preset at the factory. These default settings work well in most applications. It is
suggested that AERCO be contacted prior to changing settings other than the unit's setpoint.
OMM-0137_E • GF-211 •
12/13/2019
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