8Installation SpecificationsInstallations with ILHSF and REMP series blowers:With ILHSF and REMP blowers, the downdraft vent canbe configured to exhaust through the back, the bottom oreither side by removing the appropriate exhaust knock-outshown on the facing page.• When connecting the duct work to the back of the unit,the customer must supply a 3 ¼ x 10 rectangular tran-sition to make the connection.• For side and bottom exhaust connections, use the sup-plied transition to connect the duct work to the unit. Ittransitions between the 1 5 /8 x 16 exhaust outlet on theunit and a 3 ¼ x 10 rectangular duct connection. Onbottom exhaust installations cut a hole in the floor toallow the transition and/or duct work to pass throughthe floor (see page 13).• On side exhaust installations, allow five inches of spaceon the side for the 2 x 16 to 3 ¼ x 10 transition plusadditional space for the duct attached to it (X).Planning the Duct WorkWARNING• To reduce the risk of fire and to properly exhaust air,be sure to duct air outside the house or building. Donot vent exhaust air into spaces within walls or ceil-ings or into attics, crawl spaces or garages.• TO REDUCE THE RISK OF FIRE, USE ONLY METALDUCT WORK.• DO NOT install more than one blower to increase thelength of the duct run. Even small differences betweenblower air flow rates can greatly reduce the air drawby the downdraft vent.Local building codes may require the use of makeup airsystems with ventilation systems that move air greater thanthe specified movement rate (CFM). The specified rate var-ies based on locale. Consult a qualified HVAC specialistwhen designing the system for the requirements in yourarea and to assure optimal performance.You must install one of the Dacor blower models listedbelow for the downdraft vent to operate properly. See theblower installation instructions for directions. For modelCABP3, see the instructions later in this manual.APPROVED DACOR BLOWERS FOR USE WItHMODEL ERV-PRV SERIES DOWNDRAFt VENtSDacor BlowerModel Number Rating Compatible withVent ModelsCABP31 600 CFM 2 ERV3015 3ERV3615 3ILHSF8 600 CFM4 ALLILHSF10 1100 CFM4 ALLREMP3 600 CFM 4 ALLREMP16 1000 CFM 4 ALL1 IMPORtANt: Due to a lack of clearance, do not use aCABP3 blower if a range or wall oven is to be installed infront of the downdraft vent.2 Nominal rating at zero inches static pressure, see theCABP3 blower ratings on page 17 for actual rating.3 Revision B and later units only.4 Nominal rating at zero inches static pressure. See blowerinstallation instructions for actual ratings.For installations with CABP3 blowers:• Installation with a CABP3 blower requires Dacor adapt-er kit # AERVCAB.• The blower assembly is mounted to the front of thedowndraft vent with the exhaust pointing in the desireddirection. See page 10.• The CABP3 blower output connects directly to 3 ¼ x 10rectangular duct.1 5 /8 x 16 ducttransistion5”X3 ¼ x 10 to duct work2 x 16, connects toside or bottom exhauston downdraft1"(2.5 cm)5"(12.7 cm)1 5 /8 x 16 Duct transition