Tjernlund HS3,4,5 Series with UC1 Universal Control (Version X.02) 8504111 Rev 09/02 - Manual (Page 2)

1
Address all correspondence to:
Customer Service • Tjernlund Products, Inc. • 1601 Ninth Street • White Bear Lake, MN 55110-6794
Call us toll free at 800-255-4208, visit our web site @ www.tjernlund.com or email us at [email protected].
TABLE OF CONTENTS
PAGE(S)
HS3,4,5 DESCRIPTION ............................................................................................................................................... 1
HS3,4,5 SIZING, MODEL SELECTION & SPECIFICATIONS .................................................................................. 1-2
INSTALLATION RESTRICTIONS................................................................................................................................... 3
INSTALLER CAUTIONS ............................................................................................................................................... 3
UC1 UNIVERSAL CONTROL BOARD FEATURES ......................................................................................................4
LED STATUS & FAULT INDICATORS ............................................................................................................................4
PRE / POST-PURGE & PROVER STATUS CHECK SETTINGS ...................................................................................5
VENT HOOD LOCATION ............................................................................................................................................. 6
POWER VENTER MOUNTING .................................................................................................................................... 6
VENT PIPE INSTALLATION ..........................................................................................................................................7
UC1 AND FAN PROVING SWITCH INSTALLATION ................................................................................................ 7-8
WIRING ..........................................................................................................................................................................8
WARNINGS, SEQUENCE OF OPERATION & INTERNAL SCHEMATIC ...................................................8-9
WIRING CONNECTIONS FROM UC1 TO FAN PROVER AND MOTOR .......................................................9
MULTIPLE OR MILLIVOLT APPLIANCE INTERLOCKS .................................................................................9
WIRING DIAGRAMS WITH A SINGLE GAS APPLIANCE .......................................................................10-12
UC1 OPERATION CHECK, DRAFT ADJUSTMENT AND COMBUSTION AIR......................................................12-13
MAINTENANCE .......................................................................................................................................................... 14
TROUBLESHOOTING .............................................................................................................................................14-15
WARRANTY & REPLACEMENT PARTS ......................................................................................................................15
DESCRIPTION
The Tjernlund Power Venter models HS3, HS4 and HS5 are designed to Side Wall or Vertically vent Natural and LP Gas appliances.
After each burner cycle the Venter will continue to operate in post-purge mode to purge the heater and vent of residual flue gases. A
factory post-purge time is set at 2 minutes and is adjustable up 16 minutes, see “Pre / Post-purge Settings” on page 5. The Venter
features a safety system consisting of the integral UC1 Universal Control and a Fan Proving Switch. These devices monitor the
Venter’s performance and will interrupt the main burner if a venting malfunction is detected.
VENTER SPECIFICATIONS
VENTER 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.
INLET/OUTLET
UNIT DIMENSIONS (IN)
MODEL (H) HEIGHT (W) WIDTH
10" 18" HS5 16 1/2"
HS3
HS4
12 1/2"
14 3/4"
8"
8"
13 1/4"
15 1/4"
(D) DEPTH
11"
13"
16 1/2"