Specification Sheet

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Table Of Contents

38MHR

Outdoor Unit Single Zone Ductless System

Sizes 09 to 24

Product Data

NOTE: Images are for illustration purposes only. Actual models

may differ slightly.

INDUSTRY LEADING

FEATURES / BENEFITS

A PERFECT BALANCE BETWEEN

BUDGET LIMITS, ENERGY SAVINGS AND

COMFORT.

The 38MHR series ductless systems are a matched combination of

an outdoor condensing unit and an indoor fan coil unit connected

only by refrigerant tubing and wires.

The ductless system permits creative solutions to design problems

such as:

S Add−ons to current space (an office or family room

addition)

S Special space requirements

S When changes in the load cannot be handled by the

existing system

S When adding air conditioning to spaces that are heated

by hydronic or electric heat and have no ductwork

S Historical renovations or any application where

preserving the look of the original structure is essential.

The ideal compliment to your ducted system when it is impractical

or prohibitively expensive to use ductwork.

The compact indoor fan coil units take up very little space in the

room and do not obstruct windows. The fan coils are attractively

styled to blend with most room decors. Advanced system

components incorporate innovative technology to provide reliable

cooling performance at low sound levels.

Summary of content (24 pages)

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38MHR Outdoor Unit Single Zone Ductless System Sizes 09 to 24 Product Data INDUSTRY LEADING FEATURES / BENEFITS A PERFECT BALANCE BETWEEN BUDGET LIMITS, ENERGY SAVINGS AND COMFORT. The 38MHR series ductless systems are a matched combination of an outdoor condensing unit and an indoor fan coil unit connected only by refrigerant tubing and wires. The ductless system permits creative solutions to design problems such as: NOTE: Images are for illustration purposes only. Actual models may differ slightly.
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Inverter Technology Fast Installation The inverter driven compressor is designed to run at various input power frequencies (Hz) which controls the compressor’s motor speed. Even Temperature – The control package, including the inverter, monitors the outdoor and indoor temperatures as they relate to the selected indoor set point and adjusts the compressor speed to match the load and keep the system operating continuously rather than cycling and creating temperature swings.
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MODEL NUMBER NOMENCLATURE OUTDOOR UNIT 38 MH R Q 09 A -- 3 38 = OUTDOOR UNIT VOLTAGE 1 =115-1-60 3 = 208/230-1-60 MH = MODEL UNIT TYPE R = OUTDOOR UNIT SYSTEM TYPE C = COOLING ONLY Q = HEAT PUMP NOT USED NOMINAL CAPACITY 09 - 3/4 TON 12 - 1 TON 18 - 1-1/2 TONS 24 - 2 TONS MAXIMUM NUMBER OF FAN COIL UNITS THAT CAN BE CONNECTED TO THE OUTDOOR UNIT A=1:1 Use of the AHRI Certified TM Mark indicates a manufacturer’s participation in the program For verification of certification for individual pro
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STANDARD FEATURES AND ACCESSORIES Ease Of Installation Low Voltage Controls Comfort Features Microprocessor Controls Auto Restart Function Auto Changeover Energy Saving Features Inverter Driven Compressor 46°F Heating Mode (Heating Setback) Safety And Reliability 3 Minute Time Delay For Compressor High Compressor Discharge Temperature Low Voltage Protection Compressor Overload Protection Compressor Over Current Protection IPM Module Protection Condenser High Temp Protection in Cooling Mode Aluminum Blue Hyd
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DIMENSIONS − OUTDOOR System Size 9K (115) Depth (D) in. (mm) 11.81(300) Weight-Net lbs. (kg) 57.3(26) 12K (115V) 21.85(555) 30.31(770) 11.81(300) 57.8(26.2) 9K (208/230V) 21.85(555) 30.31(770) 11.81(300) 54.7(24.8) 12K (208/230V) 21.85(555) 30.31(770) 11.81(300) 53.8(24.4) 18K (208/230V) 21.81(554) 31.50(800) 13.11(333) 70.1(31.8) 24K (208/230V) 27.64(702) 33.27(845) 14.29(363) 88.6(40.2) Height (H) in. (mm) 21.85(555) Width (W) in. (mm) 30.31(770) Depth (D) in. (mm) 11.
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H 0.47 (1 2) 21.81 (554) DIMENSIONS − OUTDOOR (CONT) 20.24 (514) 13.11 (333) D W1 31.50 (800) 2.76 (7 0) W2 2.43 (6 1.8) B1 D3 H1 R0 3.37 (8 5.5) B2 13.39 (340) D2 12.24 (311) 12.80 (325) 2.36 (6 0) 4.17 (1 06) W . 79 (R 2 0) 0.87 (2 2) A1 R 0. 24 ( R 6) H2 2.43 (6 1.6) A2 Fig.
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DIMENSIONS − OUTDOOR (CONT) Unit: inch (mm) Fig.
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CLEARANCES − OUTDOOR A Air-inlet E D B C Air-outlet A07894 Fig. 4 – Outdoor Unit Clearance UNIT A MINIMUM VALUE in. (mm) 24 (610) B 24 (610) C 24 (610) D 4 (101) E 4 (101) NOTE: The outdoor unit must be mounted at least 2in. (50mm) above the maximum anticipated snow depth.
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SPECIFICATIONS − OUTDOOR COOLING ONLY COOLING ONLY Size System Outdoor Model Voltage, Phase, Cycle Electrical Operating Range Piping 9 12 9 12 18 24 38MHRC09A--1 38MHRC12A--1 38MHRC09A--3 38MHRC12A--3 38MHRC18A--3 38MHRC24A--3 V/Ph/Hz 115-1-60 115-1-60 208/230-1-60 208/230-1-60 208/230-1-60 208/230-1-60 MCA A. 13 13 7 7 11 16 MOCP - Fuse Rating A.
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SPECIFICATIONS − OUTDOOR HEAT PUMP HEAT PUMP Size System Outdoor Model Voltage, Phase, Cycle Electrical Operating Range Piping 9 12 9 12 18 24 38MHRQ09A--1 38MHRQ12A--1 38MHRQ09A--3 38MHRQ12A--3 38MHRQ18A--3 38MHRQ24A--3 V/Ph/Hz 115-1-60 115-1-60 208/230-1-60 208/230-1-60 208/230-1-60 208/230-1-60 MCA A. 13 13 8 10 15 18 MOCP - Fuse Rating A.
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COOLING PERFORMANCE DATA − (COOLING ONLY) MODEL 09 (115V) 12 (115V) 09 (208-230V) 12 (208-230V) 18 (208-230V) 24 (208-230V) COOLING Indoor Conditions (DB) DB WB 69.8F (21C) 59F (15C) 75.2F (24C) 62.6F (17C) 80.6F (27C) 66.2F (19C) 89.6F (32C) 73.4F (23C) 69.8F (21C) 59F (15C) 75.2F (24C) 62.6F (17C) 80.6F (27C) 66.2F (19C) 89.6F (32C) 73.4F (23C) 69.8F (21C) 59F (15C) 75.2F (24C) 62.6F (17C) 80.6F (27C) 66.2F (19C) 89.6F (32C) 73.4F (23C) 69.8F (21C) 59F (15C) 75.
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COOLING PERFORMANCE DATA − (HEAT PUMP) MODEL 09 (115V) 12 (115V) 09 (208-230V) 12 (208-230V) 18 (208-230V) 24 (208-230V) COOLING Indoor Conditions (DB) DB WB 69.8F (21C) 59F (15C) 75.2F (24C) 62.6F (17C) 80.6F (27C) 66.2F (19C) 89.6F (32C) 73.4F (23C) 69.8F (21C) 59F (15C) 75.2F (24C) 62.6F (17C) 80.6F (27C) 66.2F (19C) 89.6F (32C) 73.4F (23C) 69.8F (21C) 59F (15C) 75.2F (24C) 62.6F (17C) 80.6F (27C) 66.2F (19C) 89.6F (32C) 73.4F (23C) 69.8F (21C) 59F (15C) 75.2F (24C) 62.
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HEATING PERFORMANCE DATA − (HEAT PUMP) HEATING MODEL INDOOR CONDITIONS ( DB) 59F (15C) 64.4F (18C) 09 (115V) 69F (20.5C) 71.6F (22C) 59F (15C) 64.4F (18C) 12 (115V) 69F (20.5C) 71.6F (22C) 59F (15C) 64.4F (18C) 09 (208-230V) 69F (20.5C) 71.6F (22C) 59F (15C) 64.4F (18C) 12 (208-230V) 69F (20.5C) 71.6F (22C) 59F (15C) 64.4F (18C) 18 (208-230V) 69F (20.5C) 71.6F (22C) 59F (15C) 64.4F (18C) 24 (208-230V) 69F (20.5C) 71.
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APPLICATION DATA UNIT SELECTION METERING DEVICES Select equipment that either matches or supports slightly more than the anticipated peak load. This provides better humidity control, fewer unit cycles, and less part−load operation. For units used in spaces with high sensible loads, base equipment selection on unit sensible load, not on total anticipated load. Adjust for anticipated room wet bulb temperature to avoid undersizing the equipment.
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WIRING All wires must be sized per NEC (National Electrical Code) or CEC (Canadian Electrical Code) and local codes. Use Electrical Data table MCA (minimum circuit amps) and MOCP (maximum over current protection) to correctly size the wires and the disconnect fuse or breakers respectively. Per the caution note, only stranded copper conductors with a 600 volt insulation rating wire must be used. Recommended Connection Method for Power and Communication Wiring: The main power is supplied to the outdoor unit.
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AIR FLOW DATA COOLING ONLY 38MHRC Unit Size Outdoor (CFM) 9K (115V) 506 12K (115V) 506 38MHRQ Unit Size Outdoor (CFM) 9K (115V) 506 12K (115V) 506 9K (208/230V) 506 12K (208/230V) 18K (208/230V) 24K (208/230V) 506 518 553 HEAT PUMP 9K (208/230V) 506 12K (208/230V) 18K (208/230V) 24K (208/230V) 506 518 553 SOUND DATA 9K (115V) 38MHRC Unit Size COOLING ONLY 12K 9K (115V) (208/230V) 12K (208/230V) 18K (208/230V) 24K (208/230V) Outdoor Sound Pressure Level dB(A) 50.5 52 53 54 57 59.
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OUTDOOR UNIT SOUND PRESSURE TEST CONDITIONS NOTE: H=0.5 x Height of outdoor unit INDOOR CONDITION OUTDOOR CONDITION DB WB DB WB Cooling 80.6F (27C) 66.2F (19C) 95F (35C) 75.2F (24C) Heating 68F (20C) 59F (15C) 44.6F (7C) 42.
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BROWN(BLACK) L CN4_4 CN 1A Y/G N S / B LU E N Y/G BROWN BLACK GRAY FAST JOINT OPTIONAL Y/G Y/G RED B LU E YELLOW OR BLACK BROWN BLACK(BROWN) REACTOR CN4_3 CN4_1 NOTE: The connection wires for the reactor and the capacitor should be the same color; either black or brown.
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WIRING DIAGRAMS (CONTINUED) % Notes: This symbol indicates the element is optional, the actual shape shall prevail. Y/G YELLOW OR BLACK BL UE Y/G BROWN RED L1 CN 1A L2 Y/G POWER SUPPLY 4-WAY OPTIONAL CN 17 RED CN 9 MAIN BOARD / L2 OPTIONAL CN 60 BLUE REACTOR 1005AL S Y/G INDOOR UNIT BLUE BLUE OR BLACK CRANKCASE HEATER CN 32 BLUE RED 3 5 CN 25 3 OPTIONAL: AC-FAN CN 50 BLUE CAPACITOR AC-FAN OPTIONAL Y/G BLACK CN 21 U V AMBIENT TEMP. SENSOR DISCHARGE TEMP.
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WIRING DIAGRAMS (CONTINUED) Applicable to OUT DOOR DC FAN the units adopting DC motor only 3 BLUE CN16 HEATER 1 OPTIONAL:the electric heating belt of compressor BLUE OUTDOOR MAIN PCB CN60 CN6-1 CN8 CN3 CN7 CN30 V BLUE RED W CN2 CN1 BLACK δYELLOWε WHITE OUTDOOR AMBIENT TEMPERATURE SENSOR RED 1 BLUE 2 RED 3 BLACK BLACK CN17 CN10 BLACK BLUE (BLACK) BLUE REACTOR U RE D 4-WAY CN13 CN12 BLACK BROWN (RED) Y/G BROWN CN5 CN414 OPTIONAL˖ Applicable to the units adopting AC motor only
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WIRING DIAGRAMS (CONTINUED) 16022000B23636 Y/G Y/G BLACK BLUE BLUE According to the real objects BROWN S RED L1 L2 S Y/G L1 L2 CN 3 L1 L2 OPTIONAL ,1'225 81,7 CN 60 OPTIONAL OPTIONAL CN 16 RED CN 29 CN 28 CN 27 CN 21 BLUE RED BLACK BLUE 32:(5 6833/< 4-WAY Blue OUTDOOR MAIN PCB Y/G Red CRANKCASE HEATER BLACK 3 Y/G CN 17 7 AMBIENT TEMP. SENSOR CONDENSER TEMP. SENSOR DISCHARGE TEMP.
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GUIDE SPECIFICATIONS HORIZONTAL DISCHARGE OUTDOOR UNITS Size Range: 3/4 to 2 Ton Nominal Cooling and Heating Capacity Model Number: 38MHR PART 1 − GENERAL 1.01 System Description A. Outdoor air−cooled split system compressor sections suitable for on−the−ground, rooftop, wall hung or balcony mounting. Units consist of a rotary compressor, an air−cooled coil, propeller−type draw−through outdoor fan, reversing valve (HP), accumulator (HP units), metering device(s), and a control box.
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Copyright 2017 Carrier Corporation D 7310 W. Morris St. D Indianapolis, IN 46231 Edition Date: 06/17 Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.