First Time" Lighting Instructions; Operating During Power Outages - Mendota DXV-45 DT4 Installation & Operating Instructions Manual

"FIRST TIME" LIGHTING INSTRUCTIONS

IMPORTANT: Be sure all items on "INSTALLATION CHECK OFF LIST" in the Installation Manual have been completed!
CAUTION: If the pilot goes out, be sure to wait a minimum of five minutes before attempting to relight the pilot.
1. Make certain that any manual gas supply shut-off valves located upstream of fireplace are open.
2. Make certain that 120VAC power is connected [and ON] to the electrical junction box on the left side of unit.
3. Insert Batteries in the Battery Holder if not already installed at the factory. Note the polarity of batteries and insert as
indicated on the battery compartment covers.
4. For the "First Time Lighting", Remove the Glass Door. This is required to purge the gas line of air and to inspect the
pilot lighting spark.
5. Locate the "Standing Pilot ON/OFF Switch". Toggle "Standing Pilot ON/OFF Switch" to "ON". You will hear a series of
clicks and after a few seconds, you will hear sparking at the pilot spark electrode. Visually inspect the spark at the pilot
hood and verify that the spark jumps from the spark electrode to the pilot hood.
6. Allow adequate time for the air in the gas-line to purge. The control system will stop sparking after 30 seconds if the
pilot light does not light. After a 30 second delay the control system will start sparking again for 30 seconds more. If
the pilot light does not light after the third 30 second spark event, the system will enter "Lock-out" mode. To unlock
from "Lock-out" mode, toggle "Standing Pilot ON/OFF Switch to "OFF" and toggle Main ON/OFF Switch to "ON", wait
30 seconds and toggle Main ON/OFF Switch to OFF. Toggle "Standing Pilot ON/OFF Switch to ON. Repeat this se-
quence until the pilot flame lights and the pilot is burning steadily.
LOCK OUT MODE: If the pilot light does not light after the third 30 second spark event, the system will enter "Lock-
out" mode. To unlock from "Lock-out" mode, toggle "Standing Pilot ON/OFF Switch to "OFF" and toggle Main ON/OFF
Switch to "ON" (the sparking will start again); wait 30 seconds and toggle Main ON/OFF Switch to OFF. This will reset
the system.
7. Once the pilot flame is lit and well-established, close glass door. WARNING: NEVER IGNITE MAIN BURNERS WITH
GLASS DOOR REMOVED OR OPEN. Doing so will lead to damage to pilot flame sensor wire and spark electrode
wire leads.
8. Toggle Main Burners ON/OFF Switch to "ON". All burners should ignite and run at "high-fire". If rear burner does not
turn ON, toggle Rear Burner ON/OFF Switch to ON. After 15 seconds, Toggle Main Burners ON/OFF Switch to OFF.
Burner Flames will extinguish.
9. Perform gas inlet and outlet pressure tests and leak tests on field installed gas fittings and factory installed fittings in
the gas valve compartment, at this time. Note: Burners must be ON to check outlet pressures and to leak test gas train
fittings upstream of main gas valve.
Backup Batteries: The life span of the backup batteries depends on the quality of the batteries used and how long the
batteries have been installed in the wall receiver. These batteries are only utilized during power outages. Replace these
batteries every heating season even if you have not experienced any power outages. Batteries drain slowly even when not
in use. This is a normal characteristic of all batteries. To prevent the batteries from bleeding while not in use, you may
choose to remove the backup batteries and install them only when they are needed.

OPERATING DURING POWER OUTAGES

This electronic ignition system utilizes the supplied 110VAC power when it is available for all functions of this system. If the
AC power is interrupted during a power outage, this system utilizes the batteries (installed in the Wall Receiver) as back-
up batteries. During the power outage, the appliance's burners will function. In addition, Flame Height adjustment and
Secondary Burner ON/OFF functions will be available. The Fan and Accent Light, which are wholly dependent on 110VAC
power, will not function.
This appliance is designed and tested to be operated during power outages. The overall efficiency of this ap-
pliance will be reduced by approximately 5% when the blower function is disabled during the power outage pe-
riod.
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