12
Jøtul GZ
550
DV II
Variable Vent Restriction
Vent restriction is accomplished by sliding a restrictor
panel over the combustion air intake ports located at
the back of the firebox. See Fig 19. The panel is set in a
fully open position at the factory. Use the Vent
Window diagrams in Figs. 12-13 as a starting point to
determine the best restriction setting. Follow these
steps to adjust the restriction as necessary:
1. Remove the Controls Panel to access the adjust-
ment lever at the rear of the valve compatment.
Simply loosen the two wingnuts that secure the
panel to the cabinet floor and pull the panel
forward. You do not need to disconnect any wires.
2. Locate the vent restriction wingnut protruding
from the firebox floor at the rear of the valve
compartment. Loosen the wingnut and push the
lever to the left to increase restriction in one inch
increments, e.g: 1 inch travel = 1/3 closed position.
The ideal restrictor setting for a particular vent
system will vary depending on the specific installa-
tion characteristics. Once the fireplace is operating,
further restrictor adjustment may be necessary to
obtain the best performance. See the Operation
chapter of this manual for more information.
Figure 19. Vent restrictor adjustment.
Fireplace Installation
Optional Blower
Install the optional Blower (155630) before installing
the gas supply line.
Power Requirement
The blower must be electrically grounded in accor-
dance with local codes or, in the absence of local
codes, with the current NFPA 70- National Electrical
Code or CSA C22.1-Canadian Code.
A three-prong (grounding) power supply plug is
included for protection against shock hazard and
should be plugged directly into a properly grounded
three-prong receptacle.
Blower Function
In the Auto mode, the blower is controlled by a heat
activated switch (snapstat) that will turn the fan on
and off as the firebox heats and cools. Use the
Manual mode to over-ride the snapstat. If the blower
is not needed, place the blower control switch in the
OFF position and the snapstat will not function.
Installation
1. Loosen the two wingnuts that secure the Control
Panel to the fireplace floor. Pull the panel forward
and swing it to the right to access the rear of the
cabinet. Do not disconnect any wires.
2. Insert a rubber grommet at each corner of the Base
Plate as shown in fig. 20.
3. Engage the Blower unit base with the four studs at
the rear of the fireplace cabinet floor. See fig. 21.
4. Insert the Snapstat into the slot in the Snapstat Bracket
and, using the M6 nuts and 10 mm socket, attach the
Control Switch / Snapstat Bracket to the two studs
protruding from the firebox floor. See fig. 22.
5. Connect the Blower Wire harness to the switch
connector at the back of the Control Panel. Connect
the two other leads to either terminal on the
snapstat. Attach the green ground wire to the left
Control Panel mounting stud. Replace the Control
Panel and tighten the wingnuts.
6. Run the power cord to the duplex receptacle in the
side of the cabinet. Gather slack cord into the side
cavity, away from the plumbing and other wiring.
f i r e - p a r t s . c o m
