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High Altitude
The Mantis can be installed to altitudes up to 10,000 feet in the
U.S., and up to 4,500 feet in Canada. The installation must meet
the requirements of the National Fuel Gas Code or local jurisdic-
tions. A high altitude kit is needed for installation above 2,000 feet.
See the instructions provided with the Mantis High Altitude Kit for
derate instructions.
Humidifier Operation
When the heater has been running, the humidifier L.E.D.
(Figure 56) may turn on to signal that the pump has been acti-
vated. Refer to Page 30 - Automatic Humidifier Operation.
Paint Curing - First Firing
The Mantis Power-Vent High-Efficiency Fireplace has been
painted with the high quality heat resistant silicon paint. To
ensure that the paint is properly cured, allow the heater to operate
with both burners on, for approximately 1 hour. During the initial
firing of the appliance, it is common for smoke to appear.
AUTOMATIC HUMIDIFIER OPERATION
The Mantis Power-Vent High-Efficiency Fireplace has an
automatic humidifier designed into the heater. As the heater
operates, condensate is created and is collected in a tank inside
the heater. The condensate pump will take the condensate that is
collected and pump it to a stainless steel tray where it evaporates
into the airstream. Humidity is then restored into the space.
Note: When the automatic humidifier is engaged and is
transferring the condensate, there may be a noticeable hissing
sound. This is normal, and the sound should persist for less than
30 seconds.
The amount of condensate created will vary based on several fac-
tors including but not limited to location of heater, air temperature,
length of venting, and whether the vent pipe is horizontal or verti-
cal. The humidifier will operate intermittently while the heater is
operating.
While the condensate pump is transferring the condensate from
the tank to the tray, the humidifier L.E.D. light will flash during pump
operation. See Figure 56. Once the condensate is transferred, the
light will turn off.
Economy Mode (Red Button Operation)
To utilize this feature, a programmable control or thermostat must
be connected to the heater. A red button is located next to the
burner switches on the front control panel. See Figure 58. This is
called the economy mode.
27297-5-0511
START UP AND ADJUSTMENTS
OPTIONAL CONTROLS
CAUTION
DO NOT touch the surface of the heater. The paint will soft-
en during the initial operation, and will harden over time.
Once the paint is cured, it will not soften again.
•
To prevent triggering of smoke alarms, supply proper
ventilation to the room where the unit is installed.
•
During initial firing of logs, an odor will occur as the logs are
curing. It is also common for the burner to burn with a yellow
flame.
•
DO NOT clean the heater with any caustic or abrasive
cleaning solutions. This will damage the surface.
•
Any damage to the painted surfaces should be repaired only
with authorized paint available from your Mantis Dealer.
Shut Down Instructions
To turn the heater off, simply switch the burner switch(es) to the
"OFF" position. See Figure 55. DO NOT cut the main electrical
power to the heater.
The circulating blower will continue to operate after the burners
are turned off. The blower will stop automatically once the heater
has cooled down.
Figure 57
FRONT
BURNER
SWITCH
REAR
BURNER
SWITCH
ECONOMY
DISPLAY
BUTTON
= OFF
= ON
Figure 58
Page 31
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