Toshiba Carrier MMY-MAP1446FT9P-UL Руководство по установке - Страница 14

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Toshiba Carrier MMY-MAP1446FT9P-UL Руководство по установке
◆ System restrictions
Max. No. of combined outdoor units
Max. capacity of combined outdoor units
Max. No. of combined indoor units
Max. capacity of combined indoor units
(*1) : If the system configure only the limited indoor unit type and limited number of connection indoor unit, total indoor capacity code up to 150%
(*1) : In case without central control. It is up to 54 units in case with central control.
(*2) : If the system configure only the limited indoor unit type and limited number of connection indoor unit, total indoor capacity code up to 150%
of the outdoor capacity code is available when the height difference between the indoor units is 49 ft (15m) or less.
(*2) : In case without central control. It is up to 54 units in case with central control.
of the outdoor capacity code is available when the height difference between the indoor units is 49 ft (15m) or less.
• If the minimum capacity of the connected indoor units is to be more than 50% and less than 80%, there are limiting conditions.
* Permanent operation and heating operation below 80 % is not recommended.
For more information, please refer to the engineering data book.
For more information, please refer to the engineering data book.
◆ Cautions for installation
• Set the outdoor unit fi rst connected to the branching pipe to the indoor units as the header unit.
• Install the outdoor units in order of their capacity codes : (A) header unit ≥ (B) ≥ (C)
• Y-shaped branching joint must be installed horizontally.
• When piping to outdoor units using outdoor unit connection piping kits, intersect the pipes to the outdoor unit
and those to indoor units at a right angle as shown in fi gure 1 on "6. Installation of the outdoor unit".
Do not connect them as in fi gure 2 on "6. Installation of the outdoor unit".
25-EN
3 units
38 ton
64 units (*2)
(*1)
135% of outdoor units' capacity
H2 ≤ 49 ft (15m)
150% of outdoor units' capacity (*1)
H2 > 49 ft (15m)
105% of outdoor units' capacity
– 13 –
◆ Allowable length and allowable height difference of refrigerant piping
Total extension of pipe
(liquid pipe, real length)
(*2)
Farthest piping length L (*1) (*3) (*7)
Max. equivalent length of
Main piping (*12)
Pipe
length
Farthest equivalent piping length from the
first branch Li (*1)
Farthest equivalent piping length between outdoor units LO (*1)
maximum equivalent piping length of pipes connected to outdoor
units
Maximum real length of terminal branching section to indoor units
Maximum real length of between
Flow Selector unit and indoor unit
Maximum equivalent length between branching section
Height between outdoor
and indoor units H1 (*7)
Height
difference
Height between indoor
units H2 (*7)
Height between outdoor units H3 (*5)
<In case of connecting single port type Flow Selector unit and a branch of Multi port type Flow Selector unit to the indoor units.>
Maximum equivalent length indoor units in group control by one single port Flow
Selector unit Ln
Maximum real length between
Flow Selector unit and indoor unit (*2)
Height difference between indoor units in group control by one Flow Selector
unit H4
(*1) : Farthest outdoor unit from the first branch: (C), farthest indoor unit: (o)
(*2) : If FS unit is connected to multiple indoor units, connect wires of FS unit to one of the indoor unit with main remote control.
(*3) : Allowable values for length equivalent to furthest pipe are shown below and they vary according to capacity rank of outdoor unit.
6 to 14 ton : 607 ft, 16 to 26 ton : 640 ft, 28 to 34 ton : 656 ft
(*4) : When system capacity is greater than 22 ton, height difference between indoor units is limited to 10 ft. If the piping exceeds 10 ft with a
capacity greater than 22 ton there may be a case of capacity shortage in cooling.
(*5) : Ensure that the header unit is installed below all connected follower outdoor unit(s).
Possible product failure may occur if header unit is installed above any follower unit(s).
(*6) : 131 ft is possible for a system that uses only the flow selector unit (multi port type), whose all the indoor units are 030 type or higher, and
working ambient temperature is 32 ºF or higher.
(*7) : As for 36 to 38 ton, contact our agent.
(*8) : If the height difference (H2) between indoor units exceed 10 ft, set 164 ft or less.
(*9) : Total charging refrigerant is 308 lbs or less.
(*10) : The total piping length in one FS unit in case of branching to 4 : 394 ft (p + q + r + s + t + u), In case of branching to 6 : 590 ft.
(*11) : Length of whole pipe should be shorter than 164 ft in one branch.
(*12) : As for 34 to 38 ton, contact our agent.
(*13) : Extension up till 295 ft is possible with conditions below ;
- Outdoor temperature
- Equivalent length of farthest piping from first branching Li < 164 ft
- Actual length of main piping L1 < 328 ft
- Height difference between indoor units : < 10 ft
- Single outdoor unit, and up to 14 ton
- Minimum capacity of connectable indoor unit 036 type or larger
- Height difference between FS unit : < 1.6 ft
- Diversity : 90 - 100%
Allowable
Item
value (ft)
Below 26 ton
984
26 ton or more
3281 (*9)
Equivalent length
656 (*2)
Real length
591
Equivalent length
328
H2
>
10 ft
Real length
279
Equivalent length
394
H2 ≤ 10 ft
Real length
328
H1 > 10 ft
164
H1
<
10 ft
213
49
33
98
Single port type
49
164
Multi port type
(*10) (*11)
164
230
Upper outdoor units
(*8) (*13)
Lower outdoor units
98 (*6)
Upper outdoor units
131
Lower outdoor units (*4)
49
16
98
Single port type
49
Multi port type
164
1.6
Cooling : 50 - 115 ºF (DB)
Heating : 23 - 59 ºF (DB)
Simultaneous operating : 45 - 77 ºF (DB)
Pipes
LA + La + Lb + Lc + L1 + L2 + L3 +
L4 + L5 + L6 + L7 + L8 + L9 + a + b +
c + d + e + f + g + h + i + j + k + l +
m + n + o+ p + q + r + s + t + u
LA + Lc + L1 + L3 + L4 +
L5 + L6 + L7 + L8 + o
L1
L3 + L4 + L5 + L6 + L7 + L8 + o
LA + Lc (LA + Lb)
Lc (La , Lb)
a + f, b + g, c + h, d + i, e + j, k, l
f, g, h, i, j
p, q, r, s + t, s + u
L2, L3, L4, L8, L9
–
–
–
–
–
L6 + L7 + L8 + o
(Ex.) In case of wiring to the indoor
unit (m): L6 + m ≤ 49 ft
In case of wiring to the indoor
unit (n): L6 + L7 + n ≤ 49 ft
s + t , s + u ≤ 164 ft
–
26-EN