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TJERNLUND PRODUCTS, INC.
1601 Ninth Street • White Bear Lake, MN 55110-6794
PHONE (800) 255-4208 • (651) 426-2993 • FAX (651) 426-9547
Visit our web site • www.tjernlund.com
MODEL HS115-3, HS115-4 & HS115-5 WIRING DIAGRAM ADDENDUM
WARNING:
The BLACK & WHITE Power Venter motor wires shown the diagram below are applicable only for the HS115-3. For models
HS115-4 & HS115-5 use BLACK and WHITE wires from electrical box wip and connect to proper terminals on motor. See motor
nameplate for proper wiring. Upon first startup, as viewed from opposite end of shaft, verify HS115-4 & HS115-5 motors
rotate clockwise. Mount electrical box with Fan Prover in a vertical position. See instructions for proper installation of Fan
Prover Sensing tube. HS115-3,4,5 Motor and Fan Prover specifications are the same as the equivalent HS-3,4,5 model.
HS115-3, 4, 5 SERIES CONNECTED TO ANY 115V BURNER MOTOR OR GAS VALVE
(BURNER MOTOR OR GAS VALVE LESS THAN 3 AMPS @ 120 VAC)
MAC-4 CONTROL WIRED WITH UP TO FOUR 24V GAS APPLIANCES AND ONE TJERNLUND
HS115-3,4,5 POWER VENTER (MOTOR LOAD UP TO 1 H.P.)
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MAC-4 CONTROL WIRED WITH UP TO FOUR 24V GAS APPLIANCES AND MULTIPLE POWER VENTERS &
(IF INDIVIDUAL OR COMBINED MOTOR LOAD EXCEEDS 1 H.P., ISOLATION RELAY(S) WILL HAVE TO BE ADDED)
MAC-4 CONTROL WIRED WITH UP TO FOUR 115V GAS APPLIANCES AND ONE
TJERNLUND HS115-3,4,5 POWER VENTER (MOTOR LOAD UP TO 1 H.P.)
© 2000 Tjernlund Products, Inc. P/N 8505010
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TJERNLUND PRODUCTS, INC.
1601 Ninth Street • White Bear Lake, MN 55110-6794
PHONE (800) 255-4208 • (651) 426-2993 • FAX (651) 426-9547
Visit our web site • www.tjernlund.com
FOR NATURAL GAS OR LP
REV. A 9/99
MODELS
HS-3
HS-4
HS-5
OWNER INSTRUCTIONS, DO NOT DESTROY
!
Recognize this symbol as an indication of important Safety Information!
NOTE: FLUE GAS TEMPERATURES MUST NOT EXCEED
600oF AT VENT SYSTEM INLET.
THESE INSTRUCTIONS ARE INTENDED AS AN AID TO QUALIFIED, LICENSED
SERVICE PERSONNEL FOR PROPER INSTALLATION, ADJUSTMENT AND
OPERATION OF THIS UNIT. READ THESE INSTRUCTIONS THOROUGHLY
BEFORE ATTEMPTING INSTALLATION OR OPERATION. FAILURE TO FOLLOW
THESE INSTRUCTIONS MAY RESULT IN IMPROPER INSTALLATION, ADJUSTMENT, SERVICE OR MAINTENANCE POSSIBLY RESULTING IN FIRE, ELECTRI CAL SHOCK, CARBON MONOXIDE POISONING, EXPLOSION, PERSONAL
INJURY OR PROPERTY DAMAGE.
DO NOT DESTROY. PLEASE READ CAREFULLY AND KEEP
IN A SAFE PLACE ON JOB SITE FOR FUTURE REFERENCE.
Copyright © 1997, Tjernlund Products, Inc. All rights reserved. P/N 8504031
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TABLE OF CONTENTS
PAGE(S)
HS-3,4,5 DESCRIPTION ............................................................................................................................................ 1
SPECIFICATIONS ......................................................................................................................................................... 1
HS-3,4,5 SIZING & SELECTION ................................................................................................................................ 1-2
RESTRICTIONS.......................................................................................................................................................... 2-3
INSTALLER CAUTIONS ............................................................................................................................................... 3
VENT HOOD LOCATION ............................................................................................................................................. 3
POWER VENTER MOUNTING .................................................................................................................................... 4
VENT PIPE INSTALLATION ..........................................................................................................................................4
FAN PROVING SWITCH INSTALLATION .................................................................................................................... 5
WIRING .......................................................................................................................................................................5-9
SPECIFICATIONS ........................................................................................................................................... 5
WIRING WITH SINGLE APPLIANCE........................................................................................................... 6-7
WIRING WITH MULTIPLE APPLIANCES & MAC-3 CONTROLLER .......................................................... 8-9
OPERATION SEQUENCE ............................................................................................................................ 10
DRAFT ADJUSTMENT ............................................................................................................................................... 10
SAFETY INTERLOCK ..................................................................................................................................................10
MAINTENANCE .......................................................................................................................................................... 10
HOW TO OBTAIN SERVICE & LIMITED WARRANTY ..........................................................................................10-11
REPLACEMENT PARTS ............................................................................................................................................. 11
Tjernlund Products welcomes your comments and questions. Call us at 800-255-4208, Fax 651-426-9547 or write to:
Customer Service, Tjernlund Products, Inc., 1601 Ninth Street, White Bear Lake, MN 55110-6794.
DESCRIPTION
The Tjernlund Power Venter models HS-3, HS-4 and HS-5 are designed to Side Wall or Vertically vent Natural and LP Gas
appliances. All models are supplied with a Fan Proving Switch which will disable the gas valve if a venting malfunction should occur.
SPECIFICATIONS
SIZING
The installer must verify that the Power Venter is sized properly using the selection table on page 2. The installer may reduce the
vent pipe diameter to the size shown in the selection table immediately after the draft hood, draft diverter or barometric draft control.
The vent pipe length shown includes all vent pipe before and after the Power Venter. To calculate the equivalent vent pipe length,
add the straight vent pipe plus 10 feet for every 90 degree elbow and 5 feet for every 45 degree elbow.
If venting multiple appliances with one Power Venter, the total combined BTU/hr. input of all appliances must be added together to
size the Power Venter.
IMPORTANT: Elbows placed directly after discharge on Power Venter may cause erratic operation of Fan Prover. If elbows are
necessary on discharge, allow for a straight section of pipe 3 times the vent diameter being used before installing an elbow.
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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.
The Power Venter must be installed by a qualified installer in accordance with these instructions and all local codes or in their
absence in accordance with the latest edition of The National Fuel Gas Code (NFPA #54), The latest edition of the National Electrical
Code (NFPA#70) and the Occupational Safety and Health Act (OSHA) when applicable. Improper installation can create a hazardous
condition such as an explosion, fire, electrical shock or carbon monoxide poisoning resulting in property damage, personal injury or
death.
Disconnect the power supply when making wiring connections or when working around the fan wheel and motor. Failure to do so can
result in electrical shock, personal injury, death or property damage.
1. The Power Venter may only be installed on Natural Gas or LP Gas appliances.
2. The Power Venter may not be installed on incinerators, incinerating toilets, condensing-type appliances or solid-fuel burning
appliances.
3. The Power Venter shall not be installed on an appliance with an automatic valve having a manual opener unless the manual
opener has been rendered inoperative or the automatic valve has been replaced with a valve not equipped with a manual opener.
4. The Power Venter may only be installed on appliance equipped with a draft hood, draft diverter or barometric draft control.
INSTALLATION RESTRICTIONS
2