Recognize safety information. This is the safety-alert symbol When you see this symbol on the furnace and in instructions or manuals, be alert to the potential for personal injury. Understand the signal words DANGER, WARNING, CAUTION, and NOTE.
LOCATED IN THE TOP PLATE AND BOTTOM PLATE NOTE: Minimum return-air openings at furnace, based on metal duct. If flex duct is used, see flex duct manufacturer's recommendations for equivalent diameters. a. For 800 CFM–16-in. round or 14 b. For 1200 CFM–20-in. round or 14 c.
The furnace is factory- shipped for use with natural gas. A factory accessory gas conver- sion kit, as listed on the furnace rating plate is required to convert furnace for use with propane gas. These furnaces SHALL NOT be installed directly on carpeting, tile, or any other combustible material other than wood flooring.
This furnace must be installed so the electrical components are protected from water. Locate the furnace as close to the chimney/vent and as near the center of the air distribution system as possible. The furnace should be installed as level as possible.
The duct system should be sized to handle the required system design CFM at the design static pressure. When a furnace is installed so that the supply ducts carry air to areas outside the space containing the furnace, the return air must also be handled by a duct(s) sealed to the furnace casing and terminating outside the space containing the furnace.
ONLY be con- nected to an accessory subbase or factory approved air condition- ing coil casing. DO NOT cut main furnace casing to attach supply side air duct, humidifier, or other accessories. All accessories MUST be connected external to furnace main casing.
→ Do not install furnace on its back. Safety control operation will be adversely affected. Never connect return-air ducts to back of furnace. Failure to follow this warning could result in fire, personal injury, or death. Step 5—Downflow Installation NOTE: This furnace is approved for use on combustible materials or wood flooring.
OPENING Fig. 6—Furnace, Plenum, and Subbase Installed on a Combustible Floor LINE CONTACT ONLY PERMISSIBLE BETWEEN LINES FORMED BY INTERSECTIONS OF THE TOP AND TWO SIDES OF THE FURNACE JACKET AND BUILDING JOISTS, STUDS, OR FRAMING. MANUAL SHUTOFF GAS VALVE...
An accessible manual shutoff valve MUST be installed upstream of the furnace gas controls and within 72 in. of the furnace. A 1/8-in. NPT plugged tapping, accessible for test gage connection, MUST be installed immediately upstream of the gas supply...
& WASHER (4) REQD PER ROD NOTES: 1. A 1 In. clearance minimum between top of furnace and combustible material. 2. The entire length of furnace must be supported when furnace is used in horizontal position. Step 10—Electrical Connections 115-V WIRING Refer to the unit rating plate or Table 6 for equipment electrical requirements.
AIRFLOW INSTALLATION POSITION OF FILTERS RETURN-AIR PLENUM ACCESS DOOR Fig. 12—Downflow Filter Arrangement Table 5—Maximum Capacity of Gas Pipe * NOMINAL IRON INTERNAL LENGTH OF PIPE (FT) PIPE SIZE DIAMETER (IN.) (IN.) 0.622 0.824 1.049 1-1/4 1.380 1400 1-1/2 1.610 2100 1460 1180 990 900 * Cubic ft of gas per hr for gas pressures of 0.5 psig (14-in.
Proper polarity must be maintained for correct operation. Thermostat wire connections at R, W, C, and Y must be made at the furnace 24-v terminal block on the control board. The gas service pressure must not exceed 0.5 psig (14-in. wc), but must be no less than 0.16 psig (4.5-in.
CONDENSING UNIT WIRE NOTES: Connect Y-terminal in furnace as shown for proper blower operation. Some thermostats require a "C" terminal connection as shown. If any of the original wire, as supplied, must be replaced, use same type or equivalent wire.
1. Set gas input rate Furnace gas input rate on rating plate is for installations at altitudes up to 2000 ft. Furnace input rate must be within ±2 percent of input on furnace rating plate. a. Determine natural gas orifice size and manifold pressure for correct input.
→Table 7—Model 58ZAV Orifice Size† and Manifold Pressure for Correct Input (Tabulated Data Based on 23,000 BTUH Per Burner, Derated 4 Percent per 1000 Ft Above Sea Level)* AVG GAS ALTITUDE HEAT VALUE RANGE AT ALTITUDE Orifice (FT) (BTU/CU FT) 1000 2000 1025...
→Table 7—Model 58ZAV Orifice Size† and Manifold Pressure for Correct Input (Tabulated Data Based on 23,000 BTUH Per Burner, Derated 4 percent per 1000 Ft Above Sea Level)* AVG GAS ALTITUDE HEAT VALUE RANGE AT ALTITUDE Orifice (FT) (BTU/CU FT) 5001 6000 1000...
92,000 Canada A93059 At installation altitudes from 2000 to 4500 ft, this furnace must be derated 10 percent by an authorized Gas Conversion Station. To determine correct input rate for altitude, see example above and use 0.90 as derate multiplier factor.
Gas rate = 88 cu ft/hr (from Table 9) Btu heating input = 88 X 1050 = 92,400 Btuh In this example, the orifice size and manifold pressure adjustment is within ±2 percent of the furnace input rate. 2. Set temperature rise. SIZE OF TEST DIAL...
The preferred method of checking the limit control is to gradually block off the return air after the furnace has been operating for a period of at least 5 minutes. As soon as the limit has shut off the burners, the return-air opening should be unblocked.
Disconnect red motor lead at blower speed selector. Mark terminal for proper reconnection. d. Replace blower access door. e. Turn on 115-v power to furnace. Be sure room thermostat is calling for heat. f. Allow furnace to operate until auxiliary limit activates, but DO NOT operate furnace longer than 4 minutes.
[ ] Packaged Service Training [ ] Classroom Service Training Copyright 2000 CARRIER Corp. • 7310 W. Morris St. • Indianapolis, IN 46231 Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.