AERCO Innovation (G-14-2265 and above) - Manual (Page 123)

Innovation Water Heaters Installation, Operation & Maintenance Manual
CHAPTER 8 – WATER HEATER MANAGEMENT
OMM-0078_0L
AERCO International, Inc. • 100 Oritani Dr. • Blauvelt, NY 10913
Page 123 of
206
GF-128
Phone: 800-526-0288
PRI: 11/25/2014
NOTE
The WHM Nxt On VP and WHM Nxt Off VP will determine how tight a range the
temperature is controlled over and how quickly the system responds to a change in load.
A narrow difference between Nxt On VP and WHM Nxt Off VP will make the system more
responsive to load changes.
8.8 WHM HARDWARE INSTALLATION & SET-UP INSTRUCTIONS
The following sections provide the basic installation and set-up instructions for implementing a
Water Heater Management System (WHM) to control up to eight (8) AERCO Innovation Water
Heaters. Some of the descriptions and procedures included in Chapter 2 may be repeated here
to avoid unnecessary referencing.
8.8.1 Hardware Installation
All Innovation Water Heaters which will be controlled by a WHM master must be equipped with
an actuator-controlled sequencing valve (part no. 92093). If this valve is not already installed on
the cold water inlet, proceed as follows:
WHM Hardware Installation
1. Remove the sequencing valve from its stowed location.
2. Refer to Figure 8-2 and attach the valve to the cold water inlet of the unit (shown in Figure
8-2, below) using the pipe union and nipple provided.
3. Ensure that the valve is positioned with the actuator enclosure position as shown in Figure
8-2.
4. AERCO recommends that another pipe nipple and union be attached to the valve inlet
prior to connecting the cold water supply piping.
5. Tighten all pipe connections after the sequencing valve is properly positioned.
6. Connect the 4-pin Molex connector on the sequencing valve to the mating connector on
the Innovation harness at the rear of the unit.
7. This completes the sequencing valve installation.