Carrier WEATHERMAKER 8000 58ZAV manuale d’uso

WeatherMaker 8000™ 58ZAV Downflow/Horizontal Induced-Combustion Furnaces Installation, Start-Up, and Operating Instructions Sizes 050—135, Series 151 and 161 NOTE: Read the entire instruction manual before starting the installation. This symbol → indicates a change since the last issue. Index Page SAFETY CONSIDERATIONS .......................[...]

ELECTROSTATIC DISCHARGE (ESD) PRECAUTIONS PROCEDURE Electrostatic discharge can affect electronic components. Take precautions during furnace installation and servicing to protect the furnace electronic control. Precautions will pre- vent electrostatic discharges from personnel and hand tools which are held during the procedure. These precautions w[...]

INTRODUCTION The model 58ZAV Series 151 and 161 Furnaces are available in sizes 46,000 through 135,000 Btuh input capacities. The design of the downflow/horizontal gas-fired furnace is CSA (A.G.A. and C.G.A.) certified for natural and propane gases and for installation on noncombustible flooring. The furnace is factory- shipped for use with natural[...]

Improper installation, adjustment, alteration, service, mainte- nance, or use can cause carbon monoxide poisoning, explo- sion, fire, electrical shock, or other conditions which may cause personal injury, loss of life, or property damage. Consult a qualified installer, service agency, local gas sup- plier, or your distributor or branch for informat[...]

The operation of exhaust fans, kitchen ventilation fans, clothes dryers, or fireplaces could create a NEGATIVE PRESSURE CONDITION at the furnace. Make-up air MUST be provided for the ventilation devices, in addition to that required by the furnace. All fuel-burning equipment must be supplied with air for combus- tion of the fuel. Sufficient air MUS[...]

Step 3—Supply Air Connections DOWNFLOW FURNACES Connect supply-air duct to supply-air opening on furnace. The supply-air duct attachment must ONLY be connected to furnace supply/outlet or air conditioning coil casing (when used), when installed on non-combustible material. When installed on combus- tible material, supply-air duct attachment must [...]

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. A factory accesso[...]

Fig. 6—Furnace, Plenum, and Subbase Installed on a Combustible Floor A96285 DOWNFL OW SUBBASE SHEET MET AL PLENUM FL OOR OPENING FURNACE (OR COIL CASING WHEN USED) COMBUSTIBLE FL OORING Fig. 7—Furnace, Plenum, and Coil Assembly or Coil Box Installed on a Combustible Floor A96284 CD5 OR CK5 COIL ASSEMBL Y OR KCAK C COIL BOX FURNACE SHEET MET AL [...]

If coil assembly CD5, CK5, or Coil Box KCAKC is used, install as shown in Fig. 7. Step 6—Horizontal Attic Installation Do not install the furnace on its back; safety control operation will be adversely affected. Never connect return-air ducts to the sides or back of the furnace. Failure to follow this warning could result in fire, personal injury[...]

Step 10—Electrical Connections 115-V WIRING Refer to the unit rating plate or Table 6 for equipment electrical requirements. The control system requires an earth ground for proper operation. Do not connect aluminum wire between disconnect switch and furnace. Use only copper wire. Make all electrical connections in accordance with the current edit[...]

The cabinet MUST have an uninterrupted or unbroken ground according to NEC ANSI/NFPA 70-1999 and Canadian Elec- trical Code CSA C22.1 or local codes to minimize personal injury if an electrical fault should occur. This may consist of electrical wire or conduit approved for electrical ground when installed in accordance with existing electrical code[...]

Two quick-connect terminals marked EAC-1 and EAC-2 are provided for EAC connection. (See Fig. 14.) These terminals are energized with 115-v, (1.5-amp maximum) during blower motor operation. 2. Humidifier (HUM) A quick-connect terminal (HUM) and screw terminal (C OM ) are provided for 24-v humidifier connection. (See Fig. 16.) HUM terminal is energi[...]

Fig. 15—Heating and Cooling Application Wiring Diagram A98521 115-V FIELD- SUPPLIED DISCONNECT AUXILIARY J-BOX 24-V TERMINAL BLOCK THREE-WIRE HEATING-ONLY FIVE WIRE NOTE 1 NOTE 2 FIELD-SUPPLIED DISCONNECT CONDENSING UNIT TWO WIRE FURNACE C O N T R O L R G C WC R GY GND GND FIELD 24-V WIRING FI[...]

→ Fig. 16—Furnace Wiring Diagram A00304 PCB BLOWER OFF DELAY SELECTION CHART 90 SEC 135 SEC 180 SEC 225 SEC GVR H I/L O RELA Y SEC-1 SEC-2 PL1 3 2 1 6 5 4 9 87 LED TEST/TWIN BLOWER OFF DELAY G R Y W C HUM HSI R I DR BL WR BLOWER SPEED SELECT FU1 COO L HEA T L2 PL3 PL2 VA C 120 L1 PR1 1 2 1 2 3 PR2 24 VAC -3 A FUSE SP A RE- 2 SP ARE-1 EAC-1 EAC-[...]

When the thermostat "calls for cooling," R-G and R-Y circuits close. The R-Y circuit starts the outdoor condensing unit and combined R-Y and R-G circuits start the furnace blower motor on cooling speed. The EAC-1 terminal is energized with 115v whenever the blower is operating on cooling speed. When the thermostat is satisfied, R-G and R-[...]

→ 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)* ALTITUDE RANGE (FT) AVG GAS HEAT VALUE AT ALTITUDE (BTU/CU FT) SPECIFIC GRAVITY OF NATURAL GAS 0.58 0.60 0.62 0.64 0.66 Orifice No. Manifold Pressure Orifice No. Manifold [...]

→ Table 7—Model 58ZAV Orifice Size† and Manifold Pressure for Correct Input (Continued) (Tabulated Data Based on 23,000 BTUH Per Burner, Derated 4 percent per 1000 Ft Above Sea Level)* ALTITUDE RANGE (FT) AVG GAS HEAT VALUE AT ALTITUDE (BTU/CU FT) SPECIFIC GRAVITY OF NATURAL GAS 0.58 0.60 0.62 0.64 0.66 Orifice No. Manifold Pressure Orifice N[...]

b. Adjust manifold pressure to obtain input rate. (1.) Remove regulator adjustment seal cap. (See Fig. 18.) (2.) Turn adjusting screw, counterclockwise (out) to de- crease manifold pressure or clockwise (in) to increase manifold pressure. NOTE: This furnace has been approved for a manifold pressure of 3.2-in. wc to 3.8-in. wc when installed at alti[...]

d. Refer to Table 9 for cu ft of gas per hr. e. Multiply gas rate (cu ft/hr) X heating value (Btu/cu ft) using natural gas heating value from local gas utility/supplier. EXAMPLE: (0—2000 ft altitude) Btu heating input = Btu/cu ft X cu ft/hr Heating value of gas = 1050 Btu/cu ft Time for 1 revolution of 2-cu ft dial = 82 sec Gas rate = 88 cu ft/hr[...]

terminal. (See Fig. 14.) Select desired blower motor speed lead from 1 of the other terminals and relocate it to HEAT terminal. See Table 10 for lead color identification. Recon- nect original lead on SPARE terminal. Follow this same procedure for proper selection of COOL speed selection. If Model 58ZAV 115-22 is installed in 0.50-in. wc or lower s[...]

d. Set thermostat to "call for heat" and wait 1 minute. When pressure switch is functioning properly, hot surface igniter should NOT glow and control diagnostic light flashes a status 31. If hot surface igniter glows when inducer motor is disconnected, shut down furnace immediately. Deter- mine reason pressure switch did not function prop[...]

CHECKLIST—INSTALLATION LOAD CALCULATION ____________ Heating Load (Btuh) ____________ Cooling Load (Btuh) ____________ Furnace Model Selection AIR FOR COMBUSTION AND VENTILATION ____________ Unconfined Space ____________ Confined Space VENTING ____________ NFGC (United States) ____________ NSCNGPIC (Canada) ____________ Local Codes ____________ 1[...]

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A94328 SER VICE TRAINING P acka g ed Service T raining programs are an e xcellent wa y to increase y our knowledge of the equipment discussed in this man ual, including: • Unit F amiliarization • Maintenance • Installation Ov er view • Operating Sequence A large selection of product, theor y , and skills programs is a vailab le, using popul[...]