Installation Manual

42
WHL-001 REV. 12.17.14
ECO Mode
Putting the water heater into ECO Mode reduces maximum
firing rate to 80% of the rated maximum firing rate. This
increases water heater efficiency in times of low hot water
demand.
Press to put the water heater into ECO mode. Press
again to return to normal operation.
ECO On / Off (Off)
Test Mode
Test Mode allows the installer to test water heater operation
by running the fan at different speeds.
To enter Test Mode, press and together for 5
seconds.
Push to decrease or push to increase fan speed by
50 RPM increments.
Push to operate at maximum fan speed.
Push to operate at minimum fan speed.
Test Mode will exit automatically after 15 minutes. Press
to leave Test Mode manually.
Test Mode On / Off
(Off)
Lockout
Fault Codes
Lockout codes refer to a temporary condition that must be
cleared to resume operation. If code persists, the heater
should be serviced by a qualified service technician.
Press to clear
the code. Observe
operation to ensure
code does not
reoccur.
Blocking
Error Codes
Blocking codes temporarily stop water heater operation until
the error condition clears. Once the condition clears, the error
will disappear and the water heater will resume operation. The
error will also be written into the water heater’s history data.
Water heater
operation resumes
when conditions
return to normal.
Installer
Mode
The Installer Mode allows installers to view history hidden
from the user.
See Advanced Control Functions for information on how to
enter
Installer Mode On /
Off (Off)
NOTE: is a high temperature warning, and appears on the display if setpoint or actual water temperature is above 125
o
F.
Water temperature over 125
o
F can instantly cause severe burns or death from scalds. Children, disabled, and elderly are at
the highest risk of being scalded.
Table 10 – Water Heater Modes of Operation
B. BASIC CONTROL FUNCTIONS
There are a number of parameters accessible from the water heater main screen. These parameters are especially useful for the main
user of the water heater.
NOTE: These parameters ARE NOT ACCESSIBLE when the control is in a blocking or lockout state.
1. TURNING WATER HEATER ON / OFF
Press to turn the water heater on / off.
2. RESETTING THE WATER HEATER
Press to clear a fault code lockout and resume water heater operation.
3. PUTTING THE WATER HEATER IN ECO MODE
Press to put the water heater into ECO Mode. Press to resume normal operation.