Installation
2)1&U-,0&1&,+
Air Handlers with DX type evaporator coils require liquid and suction piping sized in accordance with condensing unit
manufacturer’s instructions. The evaporator coils have sweat copper connections. Refrigerant lines should be soldered
with silver solder or high temperature brazing alloy.
DRY NITROGEN MUST BE FLOWED THROUGH REFRIGERANT LINES DURING SOLDERING OPERATION.
REFER TO OUTDOOR UNIT INSTALLATION MANUALS FOR PRESSURE CHECKING AND VACUUM DRYING PROCEDURES.
There are two refrigerant pipes of differing diameters:
࡛
A smaller one for the liquid refrigerant
࡛
A larger one for the gas refrigerant
࡛
The inside of copper pipe must be clean & have no dust.
Prepare the connecting pipe referring to the list below.
࡛
Refrigerant pipe diameters
Unit : inch(mm)
AC012/018
NZDCH
AC024
NZDCH
AC030/036/042/048
NZDCH
Liquid pipe
1/4 (6.35)
1/4 (6.35)
3/8 (9.52)
Gas pipe
1/2 (12.7)
5/8 (15.88)
5/8 (15.88)
Ɵ˵ʪɇ̈θ˵ɇ͝ʒ̷ʪθ࣭࣬ʀͱ̷̈ʒθɇ̈͝Χɇ͝˵ɇϑϩиͱ࣭ࠛĘťƟ࣑ףߣ߫ߢߧ͔͔࣒˙ʪ͔ɇ̷ʪΧθ͔̈ɇθцɇ͝ʒϩиͱϑʪʀͱ͝ʒɇθцʀͱ͝͝ʪʀϩ̈ͱ͝ϑ̷࣑ʪ˙ϩͱθθ̈˝˵ϩ
˵ɇ͝ʒ࣒Ɵ˵ʪ˵ͱθ̈іͱ͝ϩɇ̷Χɇ͝˵ɇϑϩиͱ࣭ࠛĘťƟ࣑ףߣ߫ߢߧ͔͔࣒˙ʪ͔ɇ̷ʪࡥͱ͝ʪΧθ͔̈ɇθцɇ͝ʒͱ͝ʪϑʪʀͱ͝ʒɇθцť̈Χ̈͝˝˙θͱ͔ʪɇʀ˵ѣϩϩ̈͝˝
Їϑʪʒ̈ϑϩͱ˵ɇЭʪߤऌ̈͝ʀ˵ऌ࣑ߧߢߪ͔͔࣒͔͔̈̈͝Ї͔ϩθɇΧɇ͝ʒʪɇʀ˵θЇ̈͝͝ϑЇʀ˵ɇ͔ɇ͝͝ʪθɇϑϩͱΧθͱӬʒʪʪ͝ͱЇ˝˵ϑ̷ͱΧʪ˙ͱθɇʒʪαЇɇϩʪ
ʒθɇ̈͝ɇ˝ʪϩͱɇӬϑ̈ɵ̷ʪɇθʪɇUͱ͝ͱϩΧ̈Χʪϩ˵ʪϑʪϩиͱѣϩϩ̈͝˝ϑϩͱ˝ʪϩ˵ʪθ̈͝ϩͱɇʀͱ͔͔ͱ͝ʒθɇ̈͝
Prime drain with water before
operating the unit by pouring water into the condensate pan. Cap unused connections.
Refrigerant pipe
conections
Horizontal left
(right to left) drain
connections
Horizontal right
(left to right)
drain pan
opening
Typical Condensate Traps
2" minimum
(50.8mm minimum)
Anti-syphon air vent
2" minimum
(50.8mm minimum)
2" minimum
(50.8mm minimum)
CAUTION
࡛
Make sure to keep the drain hose from getting tangled or loosened (on the connection part).
࡛
Insulate all condensate pipes connected to the indoor unit to prevent condensation formation.
Condensate formation on condensate pipes can lead to property damage and unsafe environment
conditions.
When passing the drain hose through the hole drilled in the wall, make sure to avoid following cases.
CAUTION
࡛
Since the draining is of natural drain type, install the drain hose in downward direction.
࡛
If you do not tie the drain hose with a cable tie, leakage may occur
࡛
Drain pipe may get clogged if there is any foreign substances within the drain pan, so you must remove
any foreign substances after completing the installation.
Drain pipe installation
Summary of Contents for SINGLE CNH ZDK Series
Page 1: ...SINGLE Technical Data Book 2 1 U 0 1 S 98 E T Model BB S BBB M T ...
Page 8: ...Contents 2 1 U 0 1 98 Outdoor Units 01 1 ...
Page 9: ... 2 1 U 0 1 99 9 9H 1 H 2 6 H 16 H 0 4 H 1 H 2 1 H 1 01 0 S U 2 3 T ...
Page 29: ... H 1 01 0 S U 2 3 T 2 1 U 0 1 9 B S 89 B M T B S 8 B M T ...
Page 30: ... H 1 01 0 S U 2 3 T 2 1 U 0 1 8 B S 8 8B M T B S 8 B M T ...
Page 31: ... H 1 01 0 S U 2 3 T 2 1 U 0 1 B S 8 B M T B S 8 B M T ...
Page 38: ...3 Centerof Gravity Ƹ ϩϑ ࡤ ࣈ ʀ ʪϑࣉ OutdoorUnits S 8 M TE S 8 M TE S 8 M T ...
