The design and size of the weatherhoods or louvers chosen by the installer must allow for adequate free area. Water and snow penetration of the system is minimized when the airflow does not exceed 750 FPM (3.81m/s) free area velocity. Ducting from the Weatherhoods Galvanized sheet metal ducting with sufficient cross section with an integral single piece vapor barrier should be used to connect the HRV to the weatherhoods. All ducting must meet ULC Class 1 Fire Rating. A minimum R value of insulat

WARNING TO REDUCE THE RISK OF FIRE, ELECTRIC SHOCK, OR INJURY TO PERSONS, OBSERVE THE FOLLOWING: A. Use this unit only in the manner intended by the manufacturer. If you have any questions, contact the manufacturer. B. Before servicing or cleaning unit, switch power off at service panel and lock service panel to prevent power from being switched on accidentally. When the service disconnecting means cannot be locked, securely fasten a prominent warning device, such as a tag to the service panel.

MOTORS AND BLOWERS Each air stream has an independent motorized impeller. 3 speedoperation 120VAC FILTERS Washable air filters in exhaust and supply air streams. MOUNTING THE HRV Four threaded inserts at corners of case designed to accept four reinforced polyester straps that are supplied with the unit. DEFROST Recirculating damper defrost system. Exhaust air is periodically circulated through the unit to defrost the core. CASE Twenty gauge prepainted galvanized steel (G60) for superior corrosio

1200SFD / 28 130 1200SDD / 28 131 PROJECT DATE SUBMITTED BY CONTRACTOR 1200SFD BY MATHEWS GRAPHIC PPPPPROJECTROJECTROJECTROJECTROJECT DDDDDATEATEATEATEATE SSSSSUBMITTEDUBMITTEDUBMITTEDUBMITTEDUBMITTED BYBYBYBYBY CCCCCONTRACTORONTRACTORONTRACTORONTRACTORONTRACTOR 1200SFD BY MATHEWS GRAPHIC DIMENSIONS 1200SDD / PERFORMANCE OPTIONS AND ACCESSORIES 28 998: 60 MIN. REMOTE TIMER 28 882 DEHUMIDISTAT - Activates high speed when indoor humidity rises above set point on control Note: Manufacturer WARRANTY

Higher electrical operating costs since air handler is required to distribute fresh air. Greater potential for draft with high air volumes circulating at room temperature. LT-15 PART NO. 28 045 LT-20 PART NO. 28 047 ( RECYCLED PAPER B Y MATHEWS GRAPHIC S P E C I F I C A T I O N S THERMALLY CONDUCTIVE, PATENTED ALUMINUM CORE: The cross-flow heat recovery core transfers heat between the two air streams. It is easily removed for cleaning or service. MOTORS AND BLOWERS: Each air stream has one centr

ft, and the LT-20 of a home up to 4000 sq. ft. (On a smaller home, they can be operated at lower speed, reserving excess capacity for temporary increases in humidity or other contaminants.) They are technically advanced controlled mechanical ventilation systems designed to meet the requirements of modern, tightly built and highly insulated homes. They provide a consistent supply of fresh air while lowering heating costs during the winter by transferring heat from the exhaust air to the fresh air

1 2. Installation......................................................... 1 2.1 Location ........................................................ 1 2.2 Electrical Requirements ................................ 2 2.3 Condensate Removal....................................2 2.4 Ducting ......................................................... 3 2.4A Installing Duct Collars............................. 3 2.4B Ducting for Dehumidification................... 3 2.4C Ducting for Fresh Air ..............

During the winter months, the incoming cold fresh air is warmed by utilizing the heat recovered from the stale air before it is exhausted to the outdoors. During summer months when the indoor space is air conditioned, the Heat Recovery Ventilator will help in cooling the incoming fresh air with the stale air that is being exhausted. These instructions are intended as a general guide and do not supercede local codes in any way. Consult authorities who have jurisdiction before installing. Cover &

• No drain required. • Low maintenance, no moving parts in the exchange core. • Insulated 20-gauge powder coated galvanized steel cabinet. • Five speed motor drives a centrifugal blower in each air stream. Quiet, high efficiency PSC motor, 120 V., 1.4 Amps, 164 Watts on high speed. • Washable filters, one in each air stream protects the core. Easy to access and clean. • Complete line of accessories, controls, ducting, grilles. • Airflow balancing kit for rent or purchase to assure balanced airfl

• Installation and service must be completed by a qualified installer. • Failure to properly install this product may void the warranty. Installer: Please leave these installation instructions with the homeowner. Owner: Please keep these installation instructions for local electrical inspector’s use for future reference. WARNINGS: TO REDUCE THE RISK OF FIRE, ELECTRIC SHOCK, OR INJURY TO PERSONS OBSERVE THE FOLLOWING: A) Use this unit only in the manner intended by the manufacturer. If you have a