Johnson Controls HIDH018B21S, Engineering Manual

Page: 16 / 668

FEATURES
1-2
TC-15001-rev.3
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Comply with the following conditions when installing the unit.
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combination of indoor units.
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Outdoor Unit
Capacity
0%+
0LQLPXP&DSDFLW\DW
Individual Operation
0%+
0D[LPXP1XPEHU
of Connectable I.U.
Recommended
Number of
Connected I.U.
Connectable Indoor Unit
Capacity Ratio
0D[LPXP
*2)
0LQLPXP
72
6
*1)
18 10 150% 70%
96 21 16 135% 65%
120 25 16 130% 60%
36 26 150% 75%
168 39 32 65%
192 32 135% 65%
216 32 150% 70%
60 38 150% 70%
61 38 65%
288 38 135% 65%
312 38 130% 65%
336 38 65%
360 38 135% 65%
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Outdoor Unit
Capacity
0%+
0LQLPXP&DSDFLW\DW
Individual Operation
0%+
0D[LPXP1XPEHU
of Connectable I.U.
Recommended
Number of
Connected I.U.
Connectable Indoor Unit
Capacity Ratio
0D[LPXP
*2)
0LQLPXP
6
*1)
32 120% 60%
336 38 120% 60%
360 38 120% 60%
*1) When the outdoor air temperature is 23
o
F (-5
o
C) or cooler during the outdoor unit cooling operation, the minimum
connectable indoor unit capacity is 18,000 Btu/h. A snow protection hood (optional) should be installed.
*2) When the outdoor air temperature is 109
o
)
o
C) or warmer during the outdoor unit cooling operation, the
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Table 1.1 System Combination
127(6
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Connectable Indoor Unit Capacity Ratio = Total Indoor Unit Capacity / Total Outdoor Unit Capacity
2. For the system under which all the indoor units operate simultaneously, the total indoor unit capacity should be less
than the outdoor unit capacity. Otherwise, a decrease in operating performance and an increase in the operating
limit can result in an overload.
3. For the system under which all the indoor units do not operate simultaneously, the total indoor unit capacity is
available up to 150% against the outdoor unit capacity.
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o
F (-10
o
C), or under the high heating load
conditions, the total indoor unit capacity should be less than 100% against the outdoor unit capacity and the total
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operation. If installing indoor units in such locations, refer to the recommended number of indoor units that can be
connected.
7. When the connected indoor units are only the types indicated below, regardless of the value indicated in Table 1.1
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module type are not included.)
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