Tjernlund HSJ, 1, 2 Series with UC1 Universal Control (Version X.02) 8504106 Rev 08/02 User Manual
Page 4
Failure to install, maintain and/or operate the Power Venter in accordance with manufacturer's instructions may result in conditions
which can produce bodily injury and property damage.
Disconnect power supply from the UC1 and heating equipment when making wiring connections and servicing the Venter. Failure to
do so may result in personal injury and/or equipment damage. LED #5 (RED) should be off with power removed.
1. In order to comply with the ETL Listing of the Power Venters the Fan Prover must be wired with the appliance so as to prevent the
main burner(s) from firing if the Power Venter malfunctions or the flue is blocked. It is not safe to use the Power Venter as is on
millivolt appliances, such as water heaters which employ a combination gas valve/temperature controller, since the Fan Prover can
not be wired as described in this booklet. Millivolt appliances require additional interlock controls such as our WHKE kit. See
millivolt wiring diagram in this manual for more details.
2. Plan the vent system so that Code required distances are maintained from plumbing and wiring.
3. The Power Venter motor shaft must be mounted horizontally to ensure proper operation of the Fan Proving Switch and prevent
motor bearing wear.
4. Make certain the power supply is adequate for the fan motor and UC1 requirements. Do not add the Power Venter to a circuit
where the total load is unknown.
5. The installer must verify that the BTU/hr. input of the appliance does not exceed the recommended input of the Power Venter. See
selection table on page 1 of these instructions for sizing information.
6. Flue gas temperatures must not exceed 600
0
F. at the Power Venter inlet for U.S. installations and 285
0
C (550
0
F) for Canadian
installations. Ambient temperatures surrounding Power Venter must not exceed 40
0
C (104
0
F). See “Flue Gas Temperature
Verification”, on page 2.
7. “Safety Inspection Of a Previously Used Appliance”, below, must be performed before installation on previously used equipment.
GENERAL INFORMATION
These units have been factory tested and rated in accordance with AMCA standard 210, Test Code for Air Moving Devices.
Each Power Venter and UC1 is electrically factory line tested before shipment.
After opening carton, inspect thoroughly for hidden damage. Wheel should rotate freely. If any damage is found notify freight carrier
and your distributor immediately and file a concealed damage claim.
IMPORTANT
We do not recommend using the model HSJ for oil fired equipment since the small blower wheel is more susceptible to soot buildup.
We recommend using the SideShot Series for oil inputs under 1 GPH (142,000 BTU/hr.) firing rates.
*SAFETY INSPECTION OF A PREVIOUSLY USED APPLIANCE
(Perform prior to Power Venter installation)
The following procedure is intended as a guide to aid in determining that an appliance is properly installed and is in safe condition for
continuing use. This procedure is based on central furnace and boiler installations and it should be recognized that generalized pro-
cedures cannot anticipate all situations. Accordingly, in some cases deviation from this procedure may be necessary to determine
safe operation of the equipment.
a. This procedure should be performed prior to any attempt at modifications of the appliance or installation of the Venter.
b. If it is determined there is a condition which could result in an unsafe operation, the appliance should be shut off and the owner
advised of the unsafe condition.
The following steps should be followed in making the safety inspection:
1. Visually inspect the venting system and determine there is no blockage or restriction, leakage, corrosion or other deficiencies
which could cause an unsafe condition.
2a. Oil Installations:
Inspect burner and primary control for proper operation.
2b. Gas Installations:
Conduct a gas leakage test of the appliance piping and control system downstream of the shutoff valve
in the supply line to the appliance.
Inspect burners and cross overs for blockage and corrosion.
3. Applicable only to furnaces: Inspect heat exchanger for cracks, openings or excessive corrosion. Check both the limit control
and fan control for proper operation.
4. Applicable only to boilers: Inspect for evidence of water or combustion product leaks. Determine that the water pumps are in
operating condition. Test low water cutoffs, automatic feed controls, pressure and temperature limit controls and relief valves in
accordance with the manufacturer's recommendations to determine that they are in operating order.
* Excerpts from the National Fuel Gas Code (ANSI Z223.1/NFPA #54), Appendix H.
3