400 D / 800 D M-300 / M-400 Installation Instructions for Furnace Humidifier Plastic Models - Standard and Self-cleaning Please read the instructions carefully before starting the installation. Version 3 - June 2001 For future use, please copy the free help line number into the space below.
BEFORE YOU START - GENERAL SAFETY AND INSTALLATION PRECAUTIONS Please read and understand these instructions fully before you begin this installation and save them for future reference. The manufacturer will assume no responsibility and the warranty will be void if the user does not adhere to the following precautions.
Self-cleaning model: Normally, when the warm air of the furnace flows through the humidifier, it evaporates the water contained in the foam pad, leaving behind mineral deposits. In the self-cleaning humidifier, the principle is to eliminate a small quantity of water containing a high level of minerals before filling the unit with fresh water. The concentration of dissolved minerals will remain low, thus leaving few or no deposits on the parts that contact the water.
• OPTIONAL: If the damper is snugly in place and can remain in a fixed position, screw #4 may be left out. This will allow for easier opening and closing of the air damper. 8. Installing the flexible duct (Please see the general view Fig. 2) • • • • Measure the required flexible duct length necessary to connect the humidifier to the air take-off collar (2.3), so it does not sag. Cut the excess portion. Slide the flexible duct (2.1) on the air take-off collar (2.
12. Connecting the supply tubing to the humidifier (Please see Fig. 7) Please ensure that operations 12, 13 and 14 are completed in sequence. The plastic tubing MUST be kept away from hot surfaces (e.g. the warm air duct or the exhaust vent). Please measure carefully before cutting. IMPORTANT: Rough up both ends of the plastic tubing (approx. 1 inch long) with sandpaper in a rotating action (7.11). • • • Slip the plastic compression nut (7.9) onto the tubing, then the rubber sleeve (7.
WARNING: Always check that you are not about to cut or drill into any air conditioning or electrical accessory during installation. • Mark and drill the mounting holes and cut an opening for the humidistat. • Push the two quick connectors (9.5) on the humidistat (9.3) terminals identified #2 (or COM) and #3 (or NO). • Split the wire coming from the transformer (9.1) in two on a suitable distance to connect one end to one of the motor (9.
Spare parts for this flow-thru model are available in kits only. j Fig. Description 2.1 Flexible duct 4.1 4.2 Motor Motor Metal screw #6 x 1/2” 2 Kit #5 1 2 Float & Valve Automatic valve Valve arm Float Plastic hexagonal nut 7/16-24 Pivot point of the float Stainless steel screw 10-32 x 1/2” Brass insert (in the supply valve kit) Rubber ferrule Plastic compression nut Stainless steel hex nut 10-32 Kit #2 1 7.1 7.2 7.3 7.4 7.5 7.6 7.7 & 13.8 7.8 7.9 7.1 & 5.1 Quantity per kit 1 1 1 1 1 1 1 15.
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WARNING: This diagram is not drawn to actual demensions. Please use measurements given to obtain actual size.
MODEL 400D/800D Humidifier Limited One-Year Product Warranty Lifetime Frame and Cover Guarantee This limited one-year warranty and lifetime frame and cover warranty cover this Hamilton Humidifier as designated on the return portion of the warranty registration card, excluding wiring, plumbing, and installation. Hamilton Home Products, Inc. warrants that all new Hamilton Humidifiers are free from defects in material and workmanship under normal, non- commercial use and service.
