8
INSTALLATION CONSIDERATIONS
INSTALLATION CONSIDERATIONS
There are two types of displays to consider when installing the ICC
gateway modules to the water heaters, the older type with membrane
switches and the newer style with a touch screen. The new touch
screen style display does not need the provided RJ-485 splitter and
it can be discarded.
TOUCH SCREEN STYLE DISPLAY INSTALLATION
HIGH EFFICIENCY WATER HEATER INSTALLATION – (BTH OR
BTX MODELS)
Follow the directions under general guidelines for connecting the
module to the Energy Management System and power. This section
will guide the installer on how to mount and connect the module to
the water heater. The control box and mounting location on the water
heater is on the top of the unit behind the display module. See
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Connection of the RJ-45 end of the communication cable to the
heater is required to plug into J13 of the control board inside the
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screws holding the lid on. After plugging in the communications
cable, route the cable to the bottom side with the other cables and
put the lid back on with the two screws.
Control
Location
Top
Figure 14. Controller Location (BTH or BTX models)
Removal of the top is not required, but it may be helpful to remove
the control box lid. Use a ladder to access the top of taller water
heaters.
Next locate the upper temperature probe and exhaust switch.
Position the module between the two about 1 inch from the central
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the upper temperature probe.
Figure 15. Location of Exhaust Switch and Upper Temperature Probe
Connect the three wires from the end of the communication cable
to the module in Accordance with page 4. Once the unit is installed
and connected, the building management system can be connected
to the appropriate connection point on the module.
Figure 16. Clearance of ICC Unit from Central Burner Opening
COMMERCIAL ELECTRIC WATER HEATER (TOUCH SCREEN
INSTALLATION)
Normally the commercial electric heaters have a display with
membrane switches, but may have had a replacement touch screen
or future models may one day include touch screens. If this heater
has membrane switches on the bottom and right of the display, then
see the section below COMMERCIAL ELECTRIC WATER HEATER
INSTALLATION.
Follow directions under general guidance for connecting module to
the Energy Management System and power. This section will guide
the installer on how to mount and connect the module to the water
heater.
The module should be located where it will not interfere with the door
or in a location that is acceptable to the customer. Care should be
exercised to avoid drilling the self-tapping screws into electrical or
sensitive components. Electrical power should be disconnected
before proceeding with ICC installation.
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locate the control board.
Figure 17. Opening the Control Board Compartment Door
Locate the module on the top of the door cabinet approximately 1
inch from the water heater jacket and on the centerline of the unit
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Figure 18. ICC Location Relative to Water Heater Jacket
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