Carrier 58MEC- Manuals

Page 2 - GENERAL; ama; PRECAUTIONS; CAUTION

2 Installing and servicing heating equipment can be hazardous due togas and electrical components. Only trained and qualified service agency personnel should install, repair, or service heating equipment. Untrained personnel can perform basic maintenance functions described in User’s Information Man...

Page 3 - CARE AND MAINTENANCE; Step 1 — Cleaning and/or Replacing Air Filter; WARNING; Step 2 — Blower Motor and Wheel Maintenance

3 1. Disconnect all power to the furnace. DO NOT TOUCH THE CONTROL OR ANY WIRE CONNECTED TO THE CONTROL PRIOR TO DISCHARGING YOUR BODY’SELECTROSTATIC CHARGE TO GROUND. 2. Firmly touch a clean, unpainted, metal surface of the fur- nace chassis which is close to the control. Tools held in aperson’s ha...

Page 4 - Table 1 – Furnace Air Filter Table; FURNACE CASING WIDTH; Table 2 – Air Filter Located in Filter Cabinet; FILTER TYPE; NOTE

4 Table 1 – Furnace Air Filter Table FURNACE CASING WIDTH IN (MM) FILTER QUANTITY AND SIZE * FILTER TYPE IN (MM)* SIDE RETURN { * IN (MM) BOTTOM RETURN* IN (MM) 17 --- 1/2 (445) (1) 16 x 25 x 3/4 { (406 x 635 x 19) { (1) 16 x 25 x 3/4 (406 x 635 x 19) 3/4 (19 mm) thick washable 21 (533 ) (1) 16 x 25...

Page 5 - COLOR; Step 3 — Cleaning Burners

5 COLLECTOR BOX TUBE (PINK) COLLECTOR BOX TUBE (GREEN) INDUCER HOUSING (MOLDED) DRAIN TUBE (BEHIND COLLECTOR BOX DRAIN TUBE) COLLECTOR BOX DRAIN TUBE (BLUE) FIELD-INSTALLED FACTORY-SUPPLIED DRAIN TUBE COUPLING (LEFT DRAIN OPTION) FIELD-INSTALLED FACTORY-SUPPLIED DRAIN TUBE FIELD-INSTALLED FACTORY-SU...

Page 6 - UNIT DAMAGE HAZARD; UNIT COMPONENT ELECTRICAL SHORT HAZARD; Replace burner box cover.; FIRE OR EXPLOSION HAZARD

6 UNIT DAMAGE HAZARD Failure to follow this caution may result in damage to furnace.Label all wires prior to disconnection when servicing controls. Wiring errors can cause improper and dangerous operation. CAUTION ! 5. Remove wires from gas valve. Note location for reassembly.6. Remove burner box pr...

Page 7 - : If heat exchangers get a heavy accumulation of soot and; Cleaning Inlet Openings of Primary; assembly should be removed as one assembly.; UNIT MAY NOT OPERATE; : Be sure burner box gasket is installed between burner box; SECONDARY HEAT EXCHANGERS; The condensing side (inside) of the secondary heat

7 21. Check for gas leaks. 22. Replace main furnace door. Step 4 — Cleaning Heat Exchangers The following items should be performed by a qualified servicetechnician. PRIMARY HEAT EXCHANGERS If the heat exchangers get an accumulation of light dirt or dust onthe inside, they may be cleaned by the foll...

Page 8 - Turn off gas and electrical supplies to furnace.; : Ensure the drain tube disconnected from the inducer; : If seal between the inducer housing and the collector box; PAM; Gasket Repair

8 inducer assembly. See Flushing Collector Box and DrainageSystem section for details on removing inducer assembly. Step 5 — Flushing Collector Box and Drainage System 1. Turn off gas and electrical supplies to furnace. 2. Remove main furnace door. 3. Disconnect inducer motor and pressure switch wir...

Page 9 - TUBE ROUTING

9 Furnace is shipped from factory in upflow configuration. Pressure tube and drain tube routing MUST match the diagrams below. Tube location when used in DOWNFLOW application Tube location when used on HORIZONTAL - RIGHT application PLUG CAP COLLECTOR BOX DRAIN TUBE (BLUE & WHITE STRIPED) COLLEC...

Page 10 - Burner Flame; Step 6 — Servicing Hot Surface Igniter; niter leads in connector.; BURN HAZARD; Failure to follow this caution may result in unit component

10 ;; ;; BURNER FLAME BURNER MANIFOLD A89020 Fig. 11 -- Burner Flame RTV PAM A93081 Fig. 12 -- Gasket on Collector Box Step 6 — Servicing Hot Surface Igniter The igniter does NOT require annual inspection. Check igniterresistance before removal. 1. Turn off gas and electrical supplies to furnace. 2....

Page 11 - Igniter; Step 7 — Electrical Controls and Wiring; ELECTRICAL SHOCK HAZARD; Step 8 — Checking Heat Tape Operation (If; or lower, freeze protection measures are required. If; Check that heat tape power supply circuit is on.; Step 9 — Winterizing; winterize as follows:

11 A05075 Fig. 13 -- Igniter Bracket 2-5/32˝ (55 mm) A04181 Fig. 14 -- Igniter Step 7 — Electrical Controls and Wiring ELECTRICAL SHOCK HAZARD Failure to follow this warning could result in personal injuryor death.There may be more than 1 electrical supply to the unit. Checkaccessories and cooling u...

Page 12 - Field Wiring; Field Wiring

12 115-V FUSED DISCONNECT SWITCH (WHEN REQUIRED) JUNCTIONBOX CONTROL BOX 24-V TERMINAL BLOCK TWO-WIRE HEATING- ONLY FIVE WIRE 1-STAGE THERMOSTAT TERMINALS FIELD-SUPPLIED FUSED DISCONNECT CONDENSING UNIT FURNACE COM R W Y R G C GND GND GND GND GND GND FIELD 24-V WIRINGFIELD 115-, 208/230-, 460-V WIRI...

Page 13 - Reconnect drain cap to inducer housing.; WIRING DIAGRAM; Step 1 — Status Codes; : Removing the blower access door will open the blower; : NO thermostat signals may be present at control and all; Winterizing the Furnace

13 TEST / TWIN HUM PLT SEC-2 SEC-1 COM 24VAC PL1 W2 Y DHUM G COM W/W1 Y/Y2 R 24V FUSE 3-AMP EAC-2 EAC-1 L1 BL-1 PR-1 L2 COM HI HT COOL LO HT SPARE 2 SPARE 1 24V MTR T APS BLOWER SPEEDTERMINALS 115-VAC (L2)NEUTRALCONNECTIONS LED OPERATION& DIAGNOSTIC LIGHT 3-AMP FUSE 24-V THERMOS TATTERMINALS SET...

Page 14 - Inducer Housing Drain Tube Cap; Step 2 — Component Test; The furnace control component test allows all; Funnel in Drain Tube and Antifreeze; Remove blower access door.; Component test sequence for 2-stage furnace is as follows:

14 A99118 Fig. 19 -- Inducer Housing Drain Tube Cap Record the code and repeat the disconnect and reconnect of the redwire, recording each code until code 11 is displayed indicating noadditional codes. After the last code is displayed or after 2 minutesin the code recall mode the control will return...

Page 15 - SERVICE; LE D CODE

15 SERVICE To initiate the component test sequence, shut OFF the room thermostat or disconnect the "R" thermostat lead. Briefly short the TEST/TWIN terminal to the "Com 24V" terminal. Status LED will flash last status code and then turn ON the inducer motor. The inducer motor will st...