User manual TJERNLUND PAI-3,4,5,6,7 COMMERCIAL COMBUSTION AIR IN-FORCERS 8500402 REV B 0803

[. . . ] Insufficient combustion air causes: Flue gas spillage, flame roll-outs, decreased efficiencies, and reduced heating equipment life. Tjernlund In-Forcer combustion air intakes are packaged systems engineered to provide controlled, interlocked combustion air. Wall or roof opening size can be reduced by up to 80% compared to conventional metal louvers. In-Forcers include matching, low profile intake hoods that can be mounted on either a roof or sidewall. [. . . ] This eliminates the need for extra support around the opening that can cost far more in extra construction labor and materials than the total installed cost of an IN-FORCER. What's more, IN-FORCER'S low profile hood blends into a sidewall or roofline and is designed to keep wind and rain out. Heavy duty 5052 aluminum construction will not corrode. IN-FORCER requires maximum 12'' opening and no extra support Support beams are typically required on larger louvered intakes Easy installation and servicing Managed air distribution assures comfort The IN-FORCER attaches with integral mounting brackets or "eye" bolts. The inlet/outlet collars are 2 1/4 inches deep for easy duct connection. The IN-FORCER features a blower that slides out for easy servicing and a washable aluminum mesh pre-filter. Intake air from the IN-FORCER can be easily diffused to eliminate concentrated cold air. Air can also be heated with a hot water, steam or conventional unit heater. Standard Safety Features The IN-FORCER includes a high limit switch to deactivate the system in the event of a mechanical room fire and a pressure switch to detect blockage or system malfunction. Easy interlock options with single or multiple appliances UC1 with MAC1E or MAC4E IN-FORCER can be easily interlocked with multiple appliances. Multiple Appliance Controls Models MAC1E, MAC4E Used in conjunction with the UC1 Universal Control to interlock additional 24/115 VAC burners. Powered by and communicates with the UC1 through a factory wired whip. To interlock up to four or more additional 24/115 VAC heaters, add the MAC4E. input of all heaters must be within IN-FORCER's capacity. Millivolt Safety Interlock Kit Model WHKE For use with UC1 Universal Control, MAC1E or MAC4E auxiliary controls. The WHKE gas pressure switch actuates the IN-FORCER through the A ­ B dry contacts. The Linear Limit switch disables the heater in the event of a venting malfunction. To interlock millivolt water heater(s) only with a UC1 controlled IN-FORCER add a WHKE for each millivolt heater. To interlock a millivolt water heater and one 24/115 VAC furnace or boiler with a UC1 controlled IN-FORCER, add a WHKE and a MAC1E. Universal Control Model UC1 The UC1 Universal Control is the standardized interlock control for Tjernlund Draft/Ventilation products. The UC1 includes adjustable pre/post purge and LED status/diagnostic indicators. [. . . ] IN/OUT 6 8 10 10 12 A PAI-3 PAI-4 PAI-5 PAI-6 PAI-7 14 17-1/2 24-1/2 24-1/2 31 HOODS B C 14 17-1/2 24-1/2 24-1/2 31 8-1/4 10-3/4 10-1/2 10-1/2 11 D 6 8 10 10 12 For automatic, variable speed combustion air or for larger capacity heating systems use the UB-Series Universal Blower and CPC-Series Constant Pressure Controller. Capacities up to 6, 000 CFM. DISTRIBUTED BY: TJERNLUND PRODUCTS, INC. 1601 Ninth Street White Bear Lake, MN 55110-6794 Phone: 651. 426. 2993 800. 255. 4208 Fax: 651. 426. 9547 Visit our web site: www. tjernlund. com Copyright © 2003 Tjernlund Products, Inc. [. . . ]