15
CAN CAUSE THE CONTROLLER TO MALFUNCTION. A HIGH
QUALITY POWER CONDITIONER MUST BE INSTALLED IF THE
ABOVE CONDITIONS EXIST. MALFUNCTIONS CAUSED BY A
POOR ELECTRICAL SUPPLY ARE NOT COVERED UNDER YOUR
WARRANTY.
The controller is wired to the heater as shown in Figure 15. The model
and rating plate provides the electrical information needed to size the
complete heater branch supply.
All electrical work must be installed in accordance with the National
Electrical Code, NFPA 70.
When installed, the appliance must be electrically grounded in
accordance with local codes or, in the absence of local codes, with the
National Electrical Code, ANSI/NFPA 70.
DO NOT ENERGIZE THE BRANCH CIRCUIT BEFORE THE HEATER
TANK IS FILLED WITH WATER.
NOTE: This controller is Polarity Sensitive. If the Hot and Neutral Supply
Voltage is reversed, the controller will not sense flame. Verify polarity
before connecting the unit.
3. This unit may never be connected to any existing heating system or
component(s) previously used with non-potable water heating
appliance.
4. When the system requires water for space heating at temperatures
higher than required for domestic water purposes, a tempering
valve must be installed. Please refer to the installation diagrams
on pages 23 through 28 in the back of manual for suggested piping
arrangements.
HEATER WIRING
I
F ANY OF THE ORIGINAL WIRE AS SUPPLIED WITH THE APPLIANCE
MUST BE REPLACED, IT MUST BE REPLACED WITH 105°C OR ITS
EQUIVALENT, EXCEPT IN THE BURNER HOUSING. IN THIS CASE
USE 200°C WIRE.
THE COMPUTER CONTROL REQUIRES A SOURCE OF STABLE
CLEAN ELECTRICITY FOR PROPER OPERATION. INSTALLING THE
HEATER ON A BRANCH CIRCUIT THAT HAS ELECTRONIC NOISE,
IS SUBJECT TO FLUCTUATIONS IN VOLTAGE LEVEL OR HAS AN
APPLIANCE WHICH GENERATES EMF OF RFI INTERFERENCE
FIGURE 15.
