Mitsubishi MT300 User Manual

Installation
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63
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'10 • HM-T-149
Pump capacity diagram
<HMA100V, HMA100VM>
0
10
20
30
40
50
60
0 200 400 600 800 1000 1200 1400 1600 1800 2000
dp [kPa]
kPa
Flow ℓ/h
Available pressure
<HMS140V>
Connection of extra circulation pump
When connectingextra circulation pumps, requirements for
pressure, maximum flow etc mustbe met.Seepage67for
location.
Connecting the climate system
Pipe connections for the climate system are made at the top.
■ Allrequiredsafetydevicesandshut-offvalves(installedas
closetotheindoorunitaspossible)mustbetted.
■ Installthebleedvalveswhere necessary,highestpointof
the water system in usual case.
■ Thesafetyvalve(FL2)mustbeinstalledasillustrated.The
entire length of the overflow water pipe from the safety
valves must be inclined to prevent water pockets and must
also be frost proof.
■ Theendofoverflowpipefromthe safetyvalvesmustbe
left open to the atmosphere. The water may drip from the
pipe.
0
10
20
30
40
50
60
70
80
0 500 1000 1500 2000 2500 3000 3500
Flow ℓ/h
kPa
Available pressure
Indoor unit installation
■ HT30 doesn't have a port for FL2. Safety valve should be
installed on site.
■ HMS140Vneedsto connect a buffervesselon the hot
water tank even if hot water supply is not necessary.
See connecting the hot water heater for details.
<HMA100V, HMA100VM>
FL2BP5
<HMS140V>
<MT300>
<MT500>
■ When connecting to a system with thermostats on all
radiators,anoverflowvalvemustbef itted,orsomeofthe
thermostatsmustberemovedtoensuresufcientow.
■ SeesectionDockingsonpage66foroutlinediagram.
To climate system
To XL24 on tank (Circulation return)
From Climate system
From XL23 on tank (Circulation supply)
FL2
NOTE
Over f low valve must be installed in case extra circulation
pump is used.
The circulation pump may become damaged.
FL2

Mitsubishi MT300 Specifications

General

Brand	Mitsubishi
Model	MT300
Category	Heat Pump
Language	English