
10.2.2.R410ATools
1.Coopertubegaugeforclearanceadjustment
(usedwhenflaringwiththeconventionalflaringtool(clutch
type))
Thisgaugemakesiteasytosettheclearanceforthe
coppertubeto1.0-1.5mmfromtheclampbarofthe
flaringtool.
2.Flaringtool(clutchtype)
IntheR410Aflaringtool,thereceivingholeforthe
clampbarisenlargedsotheclearancefromtheclamp
barcanbesetto0-0.5mm,andthespringinsidethe
toolisstrengthenedtoincreasethestrengthofthepipe-
expandingtorque.Thisflaringtoolscanalsobeused
withR22piping,sowerecommendthatyouselectitif
youarebuyinganewflaringtool.
3.Torquewrenches
4.Manifoldgauge
Fig.1Coppertubegaugeforclearanceadjustment
Fig.2Flaringtool(clutchtype)
Fig.3Torquewrenches
Table5
Conventionalwrenches R410Awrenches
For1/4(oppositesidextorque) 17mmx18N.m(180kgf.cm) 17mmx18N.m(180kgf.cm)
For3/8(oppositesidextorque) 22mmx42N.m(420kgf.cm) 22mmx42N.m(420kgf.cm)
For1/2(oppositesidextorque) 24mmx55N.m(550kgf.cm) 26mmx55N.m(550kgf.cm)
BecausethepressureishigherfortheR410Atype,theconventionaltypecannotbeused.
Table6DifferencebetweenR410Aandconventionalhigh/low-pressuregauges
ConventionalGauges R410AGauges
High-pressuregauge(red) -76cmHg-35kgf/cm
3
-0.1-5.3Mpa-76cmHg-53kgf/cm
3
High-pressuregauge(blue) -76cmHg-17kgf/cm
3
-0.1-3.8Mpa-76cmHg-38kgf/cm
3
Theshapeofthemanifoldportshasbeenchangedtopreventthepossibilityofmistakenlychargingwithanothertypeof
refrigerant.
Table7DifferencebetweenR410Aandconventionalmanifoldportsize
Conventionalgauges R410Agauges
Portsize 7/6UNF20threads 1/2UNF20threads
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