Carrier 38QRF018-036 Manuel d'instructions

Installation Instructions38QRF018---036Duct Free Heat PumpsA07532Fig. 1 -- 38QRFNOTE: Read the entire instruction manual before starting theinstallati

10625 ± 50 psig between suction (low side) and discharge (high side)to allow pressure equalization.Internal Current and Temperature Sensitive Overload

11Reversing ValveIn heat pumps, changeover between heating and cooling modes isaccomplished with a valve that reverses flow of refrigerant in thesyste

12Table 3 – Pressure vs. Temperature Chart -- Puron (R--410A) RefrigerantPRESSURE TEMPERATURE PRESSURE TEMPERATURE PRESSURE TEMPERATURE PRESSURE TEMPE

13MAINTENANCE!WARNINGELECTRICAL SHOCK HAZARDFailure to follow this warning could result in personalinjury or death.Before installing, modifying, or se

14TROUBLESHOOTINGLEGENDNOTE: For systems with indoor units equipped with microprocessorcontrol, see separate controls, service, and troubleshooting ma

15TROUBLESHOOTING (CONT.)LEGENDNOTE: For systems with indoor units equipped with microprocessorcontrol, see separate controls, service, and troublesho

16Copyright 2010 Carrier Corp. S 7310 W. Morris St. S Indianapolis, IN 46231 Printed in U.S.A. Edition Date: 10/10Manufacturer reserves the right to c

2INSTALLATION!WARNINGUNIT OPERATION AND SAFETY HAZARDFailure to follow this warning could result in personal injuryor equipment damage.Puron refrigera

3(FIELD PROVIDED AND INSTALLED)NOTE: Dimensions shown in feet-inches. Dimensions in ( ) are millimeters.UNIT MODELSCHASSISSIZE(Reference)ABCDE FG H JK

4Table 1 – 38QRF018--036 Physical DataUNIT 38QRF 018 024 030 035 036NOMINAL CAPACITY Tons 1.5 2.0 2.5 2.9 3.0OPERAT ING WEIGHT lb (kg) 166 (75.3) 176

5RIG AND MOUNT UNITMounting on GroundMount unit on a solid, level concrete pad. Position unit so water orice from roof does not fall directly onto uni

6Make Suction Tube Sweat ConnectionRemove plastic caps from liquid and suction service valves. Userefrigerant grade tubing. Service valves are closed

738QRF SCHEMATICLEGENDNOTES:1. Compressor and fan motors are thermally protected.2. Wire in accordance with National Electrical Code (NEC) and local c

8Table 2 – 38QRF Electrical Data38QRFUNITSIZEV --- P H --- H zVOLTAGE RANGE*COMPRESSOR OUTDOOR FAN MOTORMIN CKTAMPSFUSE/HACRBKRAMPSRLA LRA FLA NEC Hp

9START--UPPreliminary Checks1. Check that all internal wiring connections are tight and thatall barriers, covers, and panels are in place.2. Field ele