4). Air Filter Grease Filter PL-40088-1 PL-40089-1 Fig. 3 Fig. 4 Insertion and removal of the filters is described in the CLEANING section of this manual. The optional back and side covers may be installed at this time. Install first the back cover and then the two side covers. The overhanging lips of the side covers will secure the back cover; snap catches will secure the side covers to the floor stand. – 5 – ELECTRICAL CONNECTIONS WARNING: ELECTRICAL AND GROUNDING CONNECTIONS MUST COMPLY WITH

3 1.1 Main Features.............................................................................................3 1.2 For Your Safety ..........................................................................................3 1.3 Unpacking...................................................................................................4 1.4 General Operation of the Imperial DS1 ....................................................4 1.5 RCU.........................................................

You benefit from a lifetime warranty onthe core, and a 5 year warranty on allother components. So you can breathe easy. SafetyConsiderations for HRV 1. Read entire manual before attempting to install the unit. 2. Always determine how the operation of the unit will interact with Combustion Appliances (i.e. Gasfurnace, Wood stoves, Oil furnace…) 3. Never install a unit in situations where normal operation, lack of operation or partial failure may result inbackdrafting or improper functioning of Co