Daikin FHQ100CB_RZQSG100L9V [10/52] Preparation
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Daikin FHQ100CB_RZQSG100L9V [10/52] Preparation

Daikin FBQ125D_RZQSG125L9V [10/52] Preparation
5Preparation
Installerreferenceguide
10
RZQG71~140L_V1+Y1+RZQSG100~140L_V1+Y1
Splitsystemairconditioners
4P3855221–2014.08
Refrigerantpipinglengthandheightdifference
Thepipinglengthsandheightdifferencesmustcomplywiththefollowingrequirements:
Requirement Limit
RZQG RZQSG
71 100 125+140 100 125+140
1 Minimumtotal
onewaypipinglength
Pair:Limit≤L1
Twin:Limit≤L1+L3
Triple:Limit≤L1+L4
Doubletwin:Limit≤L1+L3+L7
3m
(a)
5m
2 Maximumtotal
onewaypipinglength
Pair:L1≤Limit Øsizedown 10m(10m)
(b)
10m(10m)
(b)
Østandard 50m(70m)
(b)
75m(90m)
(b)
50m(70m)
(b)
Øsizeup 25m(35m)
(b)
35m(45m)
(b)
25m(35m)
(b)
Twinandtriple:L1+L2≤Limit
Doubletwin:L1+L2+L4≤Limit
Øsizedown 10m(15m)
(b)
10m(10m)
(b)
Østandard 50m(70m)
(b)
75m(90m)
(b)
50m(70m)
(b)
Øsizeup 25m(35m)
(b)
35m(45m)
(b)
25m(35m)
(b)
3 Maximumallowable
pipinglength
Pair:N/A — —
Twin:L1+L2+L3≤Limit 60m 75m 50m
Triple:L1+L2+L3+L4≤Limit — 75m 50m
Doubletwin:L1+L2+L3+L4+L5+L6+L7≤Limit — 75m — 50m
4 Maximumbranch
pipinglength
Pair:N/A
Twinandtriple:L2≤Limit
Doubletwin:L2+L4≤Limit
20m 20m
5 Maximumdifference
betweenbranch
lengths
Pair:N/A — —
Twin:L2–L3≤Limit 10m 10m
Triple:L2–L4≤Limit — 10m 10m
Doubletwin:
▪ L2–L3≤Limit
▪ L4–L5≤Limit
▪ L6–L7≤Limit
▪ (L2+L4)–(L3+L7)≤Limit
— 10m — 10m
6 Maximumheight
betweenindoorand
outdoor
Pair,twin,tripleanddoubletwin:H1≤Limit 30m 30m
7 Maximumheight
betweenindoors
Pair:N/A
Twin,tripleanddoubletwin:H2≤Limit
0.5m 0.5m
(a) Whenpipinglengthis<5m,acompleterechargeoftheunitisrequired.
(b) Parenthesisedfigurerepresentstheequivalentlength.
Example
Ifthesystemlayoutisasfollows… Thentherequirementsare…
▪ RZQG125
▪ Triple:
L2
L3
L4
H1
H2
L1
▪ Østandard
1 3m≤L1+L4
2 L1+L2≤75m(90m)
3 L1+L2+L3+L4≤75m
4 L2≤20m
5 L2–L4≤10m
6 H1≤30m
7 H2≤0.5m

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