Assessments - 3, GPA: 4
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Facilidade de uso
Portable lifting device must be used. Exercise caution to be sure forks do not damage chassis components (such as drain connections) while lifting and installing. Guide chassis into sleeve on indoor side by first placing chassis guide channels onto lower corners of sleeve. Slide chassis into sleeve until center partition perimeter meets gasket provided around outer edge of sleeve. Check electrical plugs for alignment as chassis is slid into place. Fig. 1 — Chassis with Accessory Indoor Polymer Wrapper A WARNING Do not release chassis until installed and bolted completely into sleeve as it may fall out without warning. Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations. 0 BOO»)! |1 |4 14 PC 131 Catalog No 535-078 Printed in U S A Form 50ET.QT-3SI Pg2 5-85 Replaces: 50QT-10SI a 5a 1a 5a For replacement items use Carrier Specified Parts HEATING A COOLING 50ET,QT Single-Package Units OUTDOOR FAN ORIFICE OUTDOOR FAN MOTOR (PROPELLER FAN AND GUARD REMOVED) OUTDOOR FAN ORIFICE DEFROST THERMOSTAT (NOT VISIBLE) REVERSING VALVE COMPRESSOR CRANKCASE HEATER THERMOSTAT CHASSIS GUIDE CHANNEL CRANKCASE HEATER COMPRESSOR MOUNTING PAN 50QT212.215 (shown), 218 50QT224 (shown), 230 Fig. 2 — Outdoor Component Location Tighten chassis into place by driving 6 lag bolts, provided in separate bag with chassis into nuts provided on sleeve (see Fig. 3). Electrical and condensate drain connections are complete when chassis is installed correctly into sleeve. A CAUTION Tighten lag bolts uniformly. Failure to do so may cause misalignment and poor electrical connection. Step 3 — Install Accessory Thermostat and Connect Thermostat Wiring — Accessory thermostat can be installed on the 50ET,QT chassis or in a remote location. TO MOUNT THERMOSTAT IN UNIT- 1. Remove metal cover plate by removing 6 screws. 2. Locate and install subbase onto thermostat bracket running between right and left coil partition (see Fig. 3). Push field-supplied thermostat wires through hole provided. ACCURATER™ DEVICE LOCATION ELECTRIC HEATER COMPARTMENT COVER INDOOR BLOWER AND MOTOR ASSEMBLY SLEEVE JUNCTION BOX ACCESS PLATE INDOOR LEFT COIL PARTITION INDOOR NAMEPLATE COMPRESSOR SUCTION PRESSURE PORT LOCATION THERMOSTAT MOUNTING BRACKET ACCESSORY ELECTRIC HEATER LOW-PRESSURE SWITCH MAIN CONTROL BOX (SLIDES OUT FOR SERVICE) CHASSIS MOUNTING BOLTS (6) CENTER PARTITION INDOOR CONDENSATE DRAIN DEFROST THERMOSTAT COMPRESSOR SUCTION SERVICE PORT (NOT VISIBLE) THERMOSTAT MOUNTING BRACKET INDOOR AIR FILTER LOCATION (NOT SHOWN) LEFT COIL PARTITION 50QT212,215,218 50QT224.230 Fig. 3 — Indoor Component Location Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations. Book|1 11 |4 |4 PC131 Catalog No 535-078 PrintedinUSA Form 50ET.QT-3SI Pg3 5-85 Replaces: 50QT-10SI - • For replacement Items use Carrier Specified Parts. HEATING A COOLING 50ET,QT Single-Package Units ©" G> ©■I _jR THERMOSTAT AND SUBBASE (SEE BELOW) JEL ÜL JZL [wl WIRES FROM UNIT CONTROL BOX THERMOSTAT SUBBASE 99TZ900321 99TZ900361 99TZ900321 99TZ900391 ®- ®- © & INSTALL JUMPER '“I "1 -© © -© © UNIT CONTROL BOX WIRING TERMINAL BOARD THERMOSTAT/SUBBASE 99TZ900291 99TZ900401 99TZ900511 99TZ900541 COOLING UNIT WITH ELECTRIC HEAT HEAT PUMP WITH SUPPLEMENTAL ELECTRIC HEAT Fig. 4 — Thermostat Connection Diagrams — 50ET.QT 3. Route thermostat wires through hole located on left coil partition and up to low-voltage wire entrance hole on control box front cover. 4. Remove 2 screws and slide control box to expose low-voltage terminals. Attach wires to appropriate terminals as shown on unit wiring diagram. See Fig. 4. 5. Attach thermostat to subbase and snap on thermostat cover. 6. Cut and remove insulation from hole in metal cover plate. 7. Replace metal cover plate. 8. Install accessory polymer front cover as described in instructions shipped with accessory cover. Cut rectangular hole for thermostat as indicated by mark in back of cover. TO MOUNT THERMOSTAT REMOTELY- 1. Pull field-supplied thermostat wires previously installed up into wire entrance hole on control box front cover and connect wires as described in Step 3, paragraph 4, above. 2. Connect other ends of thermostat wires, hanging from the wall at their remote location, securely into subbase at appropriate terminals specified in unit wiring diagram. See Fig. 4. 3 Mount subbase onto wall. 4. Attach thermostat to subbase. Snap on cover and install chassis indoor cover. Step 4 — Set Indoor Fan Motor Speed — All units are factory wired for low fan speed. Higherexternal static pressure requirements can be met by wiring motor for higher fan speed. See Table 3. Step 5 — Install Accessory Electric Heater, If Required — Refer to instructions packaged with accessory h...