Daikin RYYQ8U7Y1B, Инструкция по установке и эксплуатации

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17 | Piping installation
Installer and user reference guide
77
RYYQ+RYMQ+RXYQ
VRV IV+ heat pump
4P546228-1C – 2021.11
Actual piping length 165 m /135 m
Example 1.1
▪ unit 8: a+b+c+d+e+f+g+p≤165 m
Example 1.2
▪ unit 6: a+b+h≤165 m
▪ unit 8: a+i+k≤165 m
Example 1.3
▪ unit 8: a+i≤165 m
Example 2.1
▪ unit 8: a+b+c+d+e+f+g+p≤135 m
Equivalent length 190 m /160 m
Total piping length 1000 m /500 m
Example 1.1
▪ a+b+c+d+e+f+g+h+i+j+k+l+m+n+p≤1000 m
Example 2.1
▪ a+b+c+d+e+f+g+h+i+j+k+l+m+n+p≤500 m
▪ Between outdoor branch and outdoor unit (only in case of a multi outdoor
installation)
Actual piping length 10 m
Example 3
▪ r, s, t≤10 m; u≤5 m
Equivalent length 13 m
Maximum allowable height difference
H1 ≤50 m (40 m) (if outdoor is located below indoor units)
Conditional extension up till 90 m is possible without additional option
kit:
▪ In case the outdoor location is higher than indoor: extension is possible
up till 90 m and following 2 conditions must be fulfilled:
- Liquid piping size up (see table "Size up" in "E: Piping between
refrigerant branch kit and indoor unit" [
4
71]).
- Dedicated setting on outdoor unit is required (see [2‑49] in
"19.2.8 Mode 2: Field settings" [
4
129]).
▪ In case the outdoor location is lower than indoor: extension is possible
up till 90 m and following 6 conditions must be fulfilled:
- 40~60 m: minimum connection ratio connected: 80%.
- 60~65 m: minimum connection ratio connected: 90%.
- 65~80 m: minimum connection ratio connected: 100%.
- 80~90 m: minimum connection ratio connected: 110%.
- Liquid piping size up (see table "Size up" in "E: Piping between
refrigerant branch kit and indoor unit" [ 4 71]).
- Dedicated setting on outdoor unit is required (see [2‑35] in
"19.2.8 Mode 2: Field settings" [
4
129]).