Tjernlund HS3,4,5 Series with UC1 Universal Control (Version X.06) 8504111 Rev C 07/05 User Manual

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VENT HOOD LOCATION

This section only applies if using a Power Venter to Sidewall vent. If using Power Venter to exhaust the flue gases vertically, skip to

the section titled “POWER VENTER MOUNTING” below.

If possible, locate the Vent Hood on a wall that does not face the direction of prevailing winds. This will diminish the possibility of

appliance interruption during periods of extreme winds.

If possible, locate the Vent Hood no closer than 3 feet from an inside corner of an L-shaped structure.

CODE REQUIREMENTS

Terminate the vent system so that proper minimum clearances are maintained as cited in the latest edition of the National Fuel Gas

Code (NFPA # 54) and the latest edition of Chimneys, Fireplaces, Vents, and Solid Fuel Burning Appliances, (NFPA #211), or as follows:

• Not be less than 7 feet above grade when located adjacent to public walk ways.

• At least 3 feet above any forced air inlet located within 10 feet.

• At least 4 feet below, 4 feet horizontally from or 1 foot above any door, window or gravity air inlet into any building.

• At least 1 foot above grade.

• So that the flue gases are not directed so as to jeopardize people, overheat combustible structures or enter buildings, and

• Not less than 2 feet from an adjacent building.

POWER VENTER MOUNTING

The installer must supply plumber’s strap or 1/4” threaded rod with nuts and washers for mounting. The Venter may be mounted in

any position as long as the shaft of the motor remains horizontal. The Venter housing is single wall, 6 inches must be maintained from

all combustible materials. It is recommended that the Venter be mounted as close as possible to the point of termination.

HS3

HS4, HS5

P1 & P2 PRE-CYCLE FAN PROVER STATUS CHECK

The Pre-Cycle Prover Status Check is activated from the factory. When activated the UC1
Universal Control checks across P1 & P2 safety circuit (Venter Fan Prover) to verify that the Fan
Prover switch is “Open” upon a call for heat and not stuck “Closed”.

Pre-Cycle
Prover Status
Check Activated

PLUMBERS STRAP OR THREADED ROD

HORZONTAL INSTALLATION

VERTICAL INSTALLATION

HORZONTAL INSTALLATION

VERTICAL INSTALLATION