Johnson Controls MAHP18B21S - Figure 15. Installation Space; Installation Location

PMGB0406B rev.1
42
18. Installation Location
Figure 15. Installation Space
(1) Allow proper clearance for operation and maintenance to install this product
(2) Select installation methods according to the dimension of the false ceiling.
(3) For the piping length, keep a maximum distance of 16.4 ft (5 m) between the air handler and the
expansion valve box. Be sure the elevation difference between the air handler and the expansion valve
box DOES NOT exceed 6.6ft (2m).
(4) Check to be sure that the ceiling slab is strong enough to support the weight of the expansion valve
box. Otherwise noise and vibration may occur.
(5) Ensure proper space around the control box and expansion valve box for operation and maintenance
work. Prepare a service access door to remove the DX-Kit without getting rid of the ceiling plate.
(6) Select a suitable and convenient location for the refrigerant piping connection.
(7) Do not install the DX-Kit in a kitchen where vapor or mist À ows. During the cooling operation, if water
condensation forms on the expansion valve box, then use insulation.
(8) Do not install the DX-Kit in a organic solvent (thinner or benzine) environment. Synthetic resin parts
may dissolve.
(9) Do not install the DX-Kit where generation, À owing or staying of À ammable gas may occur.
(10) Install the expansion valve box where the sound will not leak such as in the false ceiling of a hall way.
Be sure you do not hear the sound of refrigerant running from the expansion valve box.
(11) Use ceiling material that has sound proo¿ ng such as plaster board.
(12) Do not leave combustible materials inside the space served by this product.
(13) For installation of this product in a hospital or other facility where there are electromagnetic waves from
medical equipment.
(a) Do not install this product where the electromagnetic wave radiates directly to the control box,
communication cable or wired controller.
(b) Install this product and components as far away as practicable or at least 9.8ft (3m) from any
electromagnetic wave radiator.
(c) Prepare a steel box and install the wired controller in it. Prepare a steel conduit tube and wire the
controller cable in it. Then, connect the ground wiring with the box and the tube.
(d) Install a noise ¿ lter when the power supply emits harmful noises.
Unit: inch (mm)
1-1-
1-
1-
1-
1-1-
1515
15
15
15
1515
/
//
// 1616
16
16
16
1616
(50) (50)
(50)
(50)
(50)
(50) (50)
1-1-
1-
1-
1-
1-1-
1515
15
15
15
1515
/
//
// 1616
16
16
16
1616
(50) (50)
(50)
(50)
(50)
(50) (50)
7-
7-7-
7-7-
7
77
77
/
//
// 8
88
88
(200)(200)
(200)
(200)
(200)
(200)(200)
7-
7-7-
7-7-
7
77
77
/
//
// 8
88
88
(200)(200)
(200)
(200)
(200)
(200)(200)
8-
8-8-
8-8-
7
77
77
/
//
// 8
88
88
(225)(225)
(225)
(225)
(225)
(225)(225)
1-
1-1-
1-1-
1515
15
15
15
1515
/
//
// 1616
16
16
16
1616
(50) (50)
(50)
(50)
(50)
(50) (50)
8-
8-8-
8-8-
7
77
77
/
//
// 8
88
88
(225)(225)
(225)
(225)
(225)
(225)(225)
23-23-
23-
23-
23-
23-23-
5
55
55
/
//
// 8
88
88
(600)(600)
(600)
(600)
(600)
(600)(600)
23-23-
23-
23-
23-
23-23-
5
55
55
/
//
// 8
88
88
(600)(600)
(600)
(600)
(600)
(600)(600)
1-1-1-1-1-1-1-
15151515151515
/////// 16161616161616
(50) (50) (50) (50) (50) (50) (50)
1-1-1-1-1-1-1-
15151515151515
/////// 16161616161616
(50) (50) (50) (50) (50) (50) (50)
7-7-7-7-7-7-7-
7777777
/////// 8888888
(200)(200)(200)(200)(200)(200)(200)
7-7-7-7-7-7-7-
7777777
/////// 8888888
(200)(200)(200)(200)(200)(200)(200)
8-8-8-8-8-8-8-
7777777
/////// 8888888
(225)(225)(225)(225)(225)(225)(225)
1-1-1-1-1-1-1-
15151515151515
/////// 16161616161616
(50) (50) (50) (50) (50) (50) (50)
8-8-8-8-8-8-8-
7777777
/////// 8888888
(225)(225)(225)(225)(225)(225)(225)
23-23-23-23-23-23-23-
5555555
/////// 8888888
(600)(600)(600)(600)(600)(600)(600)
23-23-23-23-23-23-23-
5555555
/////// 8888888
(600)(600)(600)(600)(600)(600)(600)
(Ins)DX-Kit4e-rev1.indd42
(Ins)DX-Kit4e-rev1.indd42
2016/11/2515:32:52
2016/11/2515:32:52