Toshiba Mmy-map1404ft8-e Service Manual New! Page
The is a high-performance SHRM-i (Super Heat Recovery Multi-i) 3-pipe VRF outdoor unit. This system is specifically designed to provide simultaneous heating and cooling from a single refrigerant circuit, making it ideal for large commercial buildings with varying thermal demands. Core Specifications System Type: 3-Pipe VRF (Heat Recovery). Power Supply: 3-phase, 380–415V, 50Hz. Nominal Capacity: 14 HP (Horsepower). Refrigerant: R-410A (non-ozone depleting). Circuit Protection: Typically requires a 25A breaker. Key Service & Installation Highlights
Up to 70 meters (outdoor unit above indoor units). Additional Refrigerant Charge Calculation
Procedures for system startup and initial performance verification.
: Provides basic operating instructions and maintenance tips for end-users, found at Toshiba Air Conditioning Installation Manual toshiba mmy-map1404ft8-e service manual
The serves as the definitive technical document required for installing, commissioning, troubleshooting, and repairing this specific 14 HP Super Heat Recovery Multi (SHRM-i) VRF outdoor unit . Operating on R410A refrigerant , this 3-pipe heat recovery system delivers a nominal 40.0 kW cooling capacity and 35.5 kW heating capacity . It features three inverter-driven twin-rotary compressors configured to optimize partial-load energy efficiency across large-scale commercial facilities.
+-------------------------------------------------------------+ | | | [7-Segment Display] [Rotary Switches] | | [U1] [U2] [U3] [U4] [SW01] [SW02] [SW03] | | | | [Push Buttons] | | [SW04] [SW05] [SW06] | | | +-------------------------------------------------------------+ Checking System Status Using Rotary Switches
| Specification | Detail | | :--- | :--- | | | Outdoor unit for commercial VRF SHRMi system | | Capacity (Cooling/Heating) | 40.00 kW / 45.00 kW | | Compressor Type | Double Rotary | | Sound Pressure Level | 62 to 64 dB(A) | | Sound Power Level | 84 dB(A) | | External Static Pressure | 40 Pa (fixed / upper limit) | | Power Supply | 380-415V, 50 Hz, 3-Phase | | MCA / MOCP | 36.4 A / 50 A | | Refrigerant Type / Charge | R410A / 11 kg | | Weight | 334 kg | | Dimensions (W×H×D) | 1830 × 990 × 780 mm | The is a high-performance SHRM-i (Super Heat Recovery
By understanding the manual’s structure (installation, wiring, refrigerant handling, test run, error codes, maintenance logs) and using the documented diagnostic methods (7‑segment display checks, check code tables, troubleshooting flowcharts), technicians can ensure the system operates efficiently for many years.
Describe the symptom (e.g., “unit runs 5 minutes then stops with error E18”) and a certified technician can guide you using the manual’s logic.
Log running currents, operational pressures, and discharge temperatures using the 7-segment display function (SW01/SW02/SW03 switches). Power Supply: 3-phase, 380–415V, 50Hz
1800 mm × 990 mm × 750 mm (H × W × D) Net Unit Weight: 263 kg Service Manual Structure Overview
This method allows you to diagnose problems without needing the indoor unit’s remote controller.
2-core screened, non-polarity communication cabling between indoor and outdoor systems. Key Sections of the Service Manual
Supports a maximum equivalent piping length of up to 200 meters and total piping lengths that can reach up to 1,000 meters in SHRM-e configurations.
Disclaimer: This article provides a summary of information typically found in manufacturer service manuals. Always refer to the specific manual provided by Toshiba for the unit in question. Only qualified personnel should perform service on VRF systems.