Mitsubishi Electric PAC-IF063B-E - Local Application Factors

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Local application factors
* This FTC is designed to connect Mr.Slim/Ecodan inverter outdoor unit of MITSUBISHI ELECTRIC to local systems. Please check the following when designing the local
system.
* MITSUBISHI ELECTRIC does not take any responsibility for the local system design.
Heat exchanger
(1) Withstanding pressure
Designed pressure of outdoor unit is 4.15 MPa. Following must be satised for burst pressure of connecting application.
Burst pressure: More than 12.45 MPa (3 times more than designed pressure)
(2) Performance
Secure the heat exchanger capacity which meets the following conditions. If the conditions are not met, it may result in malfunction caused by the protection operation
or the outdoor unit may be turned off due to the operation of protection system.
• In case of hot water supply, condense temperature is less than 58°C in max. frequency operation with the outside temperature 7°C D.B./6°C W.B.
(3) Heat exchanger internal capacity
Heat exchanger internal capacity must be within the capacity range shown below. If the heat exchanger below the minimum capacity is connected, it may result in the
back ow of liquid or the failure of the compressor.
If the heat exchanger above the maximum capacity is connected, it may result in the deciency in performance due to lack of refrigerant or overheating of the compressor.
Outdoor unit
PUHZ-SW 40 50 75 100 — 120 160 200
SUHZ-SW — 45 — — — — — —
PUHZ-SHW — — 80 112 140 — 230 —
Maximum capacity [cm³] 1050 1500 2130 3000 3750 4200 6000 7500
Minimum capacity [cm³] 350 500 710 1000 1250 1400 2000 2500
(4) Contamination maintenance
1. Wash the inside of heat exchanger to keep it clean. Be sure to RINSE not to leave ux. Do not use chlorine detergent when washing.
2. Be sure that the amount of contamination per unit cubic content of heat transfer pipe is less than the following amount.
Example) In case of
[
9.52 mm
Residual water: 0.6 mg/m, Residual oil: 0.5 mg/m, Solid foreign object: 1.8 mg/m
Thermistor position
Refer to 4.4.
Notes
· Install the hydraulic lter at the water inlet pipework.
· Inlet water temperature of heat exchanger should be within the range 5 °C - 55 °C.
· The water in both primary and sanitary circuit should be clean and with pH value of 6.5-8.0
· The followings are the maximum values;
Calcium: 100 mg/L, Ca hardness: 250 mg/L
Chrorine: 100 mg/L, Copper: 0.3 mg/L
· Other constituents should be to European Directive 98/83 EC standards.
· Refrigerant pipe diameter from outdoor unit to refrigerant-water HEX (Only for SPLIT type)
Use the pipe with same diameter size as the refrigerant pipe connection diameter of outdoor unit. (Refer to outdoor unit installation manual.)
· Ensure that there is sufcient anti-freeze chemical in the water circuit. It is recommended to use 7 : 4 anti-freeze to water ratio.
· The water velocity in pipes should be kept within certain limits of material to avoid erosion, corrosion and excessive noise generation.
Be aware, and take care of , that local velocities in small pipes, bends and similar obstructions can exceed the values above.
e.g.) Copper: 1.5 m/s
Warning:
· Always use water that meets the above quality requirements. Using water that does not meet these standards may result in damage to the system pipework
and heating components.
·Neveruseanythingotherthanwaterasamedium.Itmaycauseareoranexplosion.
·Donotuseheatedwaterthatisproducedbytheairtowaterheatpumpdirectlyfordrinkingorcooking.Thereisarisktodamageyourhealth.Thereisalso
arisk thatinstallingthewaterheatexchangermaycorrodeifthenecessary waterqualityforairtowaterheatpumpsystemcannot bemaintained.Ifyou
wishtousetheheatedwaterfromtheheatedpumpforthesepurposes,takemeasuresuchastothesecondheatexchangerwithinthewaterpipingsystem.