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58RAV Downflow/Horizontal Induced-Combustion Furnaces Visit www.carrier.com Installation, Start-Up, and Operating Instructions Sizes 050-135, Series 161 NOTE: Read the entire instruction manual before starting the installation. This symbol indicates a change since the last issue. CANADIAN GAS ASSOCIATION Index Page ® SAFETY CONSIDERATIONS 1-2 Clearances From Combustible Materials .1 Dimensional Drawing .2 ELECTROSTATIC DISCHARGE (ESD) PRECAUTIONS PROCEDURE 2-3 INTRODUCTION 3 LOCATION 3 General 3 Location Relative to Cooling Equipment .3-4 Hazardous Locations .4 AIR FOR COMBUSTION AND VENTILATION .4-5 Unconfined Space .4 Confined Space 4-5 SUPPLY-AIR PLENUM INSTALLATION (DOWNFLOW) .5 Downflow Installation .5 Installation On a Combustible Floor 5-6 HORIZONTAL ATTIC INSTALLATION .6 Construct a Working Platform .6 Install Furnace .6 HORIZONTAL CRAWLSPACE INSTALLATION 6 FILTER ARRANGEMENT .7 GAS PIPING .7-9 ELECTRICAL CONNECTIONS 9 115-v Wiring 9-10 24-v Wiring .10 Accessories 10 VENTING 10 START-UP, ADJUSTMENT, AND SAFETY CHECK .10-18 General 10 Sequence Of Operation .10-13 Heating Mode 10-13 Cooling Mode .13 Continuous Blower Mode .13 Heat Pump Mode 13 Start-up Procedures .13 Adjustments .13-18 Set Gas Input Rate 13-17 Set Temperature Rise 14-17 Set Thermostat Heat Anticipator 18 Check Safety Controls 18 Checklist 18 SAFETY CONSIDERATIONS Installing and servicing heating equipment can be hazardous due to gas and electrical components.
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Only trained and qualified personnel should install, repair, or service heating equipment. Untrained personnel can perform basic maintenance functions such as cleaning and replacing air filters. All other operations must be performed by trained service personnel. When working on ama A PP R O VED R Table 1–Clearances From Combustible Materials (In.) UNIT SIZE Sides Back Top Front Vent Single-Wall Vent Type B-1 Double-Wall Vent Single-Wall Vent Type B-1 Double-Wall Vent Sides * Back Top Front Vent Single-Wall Vent Type B-1 Double-Wall Vent Single-Wall Vent Type B-1 Double-Wall Vent Single-Wall Vent Type B-1 Double-Wall Vent HORIZONTAL (In Closet) Sides * Back Top Front Vent Single-Wall Vent Type B-1 Double-Wall Vent Single-Wall Vent Type B-1 Double-Wall Vent Single-Wall Vent Type B-1 Double-Wall Vent.