Tjernlund HSJ, 1, 2 Series with UC1 Universal Control (Version X.06) 8504106 Rev C 07/05 - Manual (Page 12)

9
POWER VENTER MOUNTING
1. Slide the outlet of the Power Venter over the inner sleeve of the Vent Hood and connect them together using a tapered transition
fitting if necessary, (See Diagram G). If you are unable to make a direct connection to the Vent Hood, vent pipe may be installed
between the Power Venter and Vent Hood. However, all vent pipe connections after the Power Venter must be sealed with high
temperature silicone caulk or aluminum vent pipe tape to prevent flue gas leakage, (See Diagram E).
2. To facilitate installation and reduce vibration we have included 2 mounting brackets, 2 rubber isolaters and 2 rubber grommets. One
of the brackets may be used temporarily as a “third hand” while positioning it for permanent installation.
3. When installing the Power Venter for horizontal mount, install one of the brackets to the electrical box using the nut/screw
provided. Install the other to the damper rod as shown below. When installing the Power Venter for vertical mount, only one
bracket is needed. This bracket should be mounted to the motor as shown below. Temporarily support the Power Venter
using wire or a ladder and assemble the mounting brackets, (See Diagram H).
4. Verify required vent pipe diameter from “HS-Series Model Selection” on page 1. Verify that a full sized barometric control has been
installed on appliances not equipped with a draft hood or draft diverter.
5. Install properly sized vent pipe sections from Power Venter inlet to appliance outlet avoiding elbows wherever possible, using
only tapered transitions. In most cases a reduction in vent pipe diameter from that of the appliance flue outlet will be necessary.
6. Using four holes as guides, attach vent pipe to Power Venter inlet collar using sheet metal screws.
7. Support vent pipe in accordance with vent pipe manufacturer’s instructions.
8. All necessary vent pipe connections after the Power Venter will be under positive pressure during operation. These connections
must be sealed with high-temperature silicone sealant or aluminum vent pipe tape supplied by the installer, (See Diagram E).
FURNACE
POWER VENTER ON INDUCED DRAFT GAS APPLIANCES
When installing the Power Venter on induced draft gas appliances, a barometric draft control must be added. The draft control pro-
vides pressure relief to neutralize over-drafting and allows a means of draft adjustment for optimum burner efficiency. By adjusting
the draft control and Power Venter damper the installer can obtain the appliance manufacturer’s recommended draft setting.
Install the vent pipe and draft control as shown in the diagrams below. The draft control should connect to a tee off of the appliance
flue outlet. The Power Venter may only be used with appliances capable of being chimney vented. It is not suitable for use on high-
efficiency, condensing models.
DIAGRAM H DIAGRAM G
(DOWNFLOW APPLIANCE)