Tjernlund HSJ Aluminized Steel Housing and Blower Wheel Side Wall Power Venter, 4 Inch, 115 VAC , 3000 RPM , 125000 BTU/hr

• UC1 universal control and a diaphragm fan proving switch safety interlock which will shut down the heating equipment if a venting malfunction occurs
• Built-in adjustable damper also allows regulation for maximum combustion efficiency
• Interlocks with any 24/120 VAC burner circuit
• UC1 universal control features adjustable pre/post-purge, LED status indicators, and fault code memory
• Thermal protection, sintered iron sleeve type bearing
• UC1 interlock control, fan proving switch, adjustable damper, vibration isolators included

Sid Harvey Item #:HS-J: Replaces Part #:'s : X89-438,
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Tjernlund HS-J

Tjernlund HS1 Steel Side Wall Power Venter with UC1 Control, 115 VAC at 60 Used for side wall venting residential/light commercial natural gas, LP or oil fired equipment including: Furnaces, boilers, water heaters and unit heaters. All models feature the new UC1 universal control and a diaphragm fan proving switch safety interlock which will shut down the heating equipment if a venting malfunction occurs. Built-in adjustable damper also allows regulation for maximum combustion efficiency. UC1 universal control features include, adjustable pre and post-purge settings, LED status/diagnostic indicators, fan prover switch monitoring. Interlocks with any 24 - 120 VAC burner control circuit and also includes dry contact actuation option. Easily interlock multiple appliances with our MAC-series multiple appliance controls.Sid Harvey Item #:HS1: Replaces Part #:'s : 21767,

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Tjernlund HS1

Tjernlund MAC1E is used in conjunction with the UC1 universal control to interlock one additional 24 VAC, 115 VAC or millivolt controlled appliance. Millivolt appliances require a WHKE kit. Powered by and communicates with the UC1 through a factory wired whip. It activates the inducer/blower through its connections to the UC1, and in turn relies on the UC1 fan prover safety circuit (P1 and P2) to allow its interlocked appliance to operate. Any pre/post-purge settings on the UC1 will be defaulted to the MAC1E.

• The MAC1E puts an end to difficult and costly job site wiring nightmares
• Circuit board housed in oversized 18 ga electrical box with multiple knock outs for easy wiring connections

Sid Harvey Item #:MAC1E: Replaces Part #:'s : 21778,
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Tjernlund MAC1E

Tjernlund PAI-4 In-Forcer Combustion Air Intake System

Tjernlund PAI-4

Tjernlund Duct Airstat senses positive pressure in a forced air heating and/or cooling system. The single pole, single throw, snap-acting switch is activated by a diaphragm with a factory installed sampling tube inserted directly into the duct or plenum.

Tjernlund PS-1503

Tjernlund WHKE Millivolt Interlocking Switch MAC1qE/MAC4E,
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Tjernlund WHKE

Tjernlund PS1505 Fan Prover has been designed to monitor the pressure within the fan housing only. A motor or wheel failure will decrease housing pressure and deactivate the pressure switch, thus preventing combustion.

• Simple installation
• Mounting hardware furnished
• Fixed setpoints
• Voltage - 125 VA pilot duty at 24 VAC, 300 VA pilot duty at 115 - 277 VAC, 15 amp non-inductive to 277 VAC
• Electric switch: SPST, normally open snap acting contacts
• Electric connectors #6-32 screw terminals with cup washer
• Control setpoint non-adjustable
• Operating pressure, on increasing vacuum pressure rise, 0.05 plus or minus 0.02 Inch WC with diaphragm in vertical position
• 1/2 psi maximum pressure
• -400 to 1900 deg F Operating temperature
• Diaphragm vertical mounting position
• 5-1/2 Inch across mounting bracket

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Tjernlund 106-5