GB

Note:

When using polyethylene cover as covering material, asphalt roofing shall not be required.

No heat insulation must be provided for electric wires.

[Fig. 9.4.2] (P.5)

A

Liquid pipe

B

Gas pipe

C Electric wire

D

Finishing tape

E

Insulator

 

[Fig. 9.4.3] (P.5)

Penetrations

[Fig. 9.4.4] (P.5)

<A> Inner wall (concealed)

<B> Outer wall

<C> Outer wall (exposed)

<D> Floor (waterproofing)

<E> Roof pipe shaft

 

<F> Penetrating portion on fire limit and boundary wall

A Sleeve

B Heat insulating material

C Lagging

D Caulking material

E Band

F Waterproofing laye

G Sleeve with edge

H Lagging material

IMortar or other incombustible caulking

JIncombustible heat insulation material

When filling a gap with mortar, cover the penetration part with steel plate so that the insulation material will not be caved in. For this part, use incombustible materi- als for both insulation and covering. (Vinyl covering should not be used.)

Insulation materials for the pipes to be added on site must meet the following specifications:

 

Pipe size

 

ø6.35 to 25.4 mm [1/4 to 1 in]

ø28.58 to 38.1 mm [1-1/8 to 1-1/2 in]

Thickness

10 mm min. [13/32 in min]

15 mm min. [19/32 in min]

Temperature Resistance

100 °C min.

*Installation of pipes in a high-temperature high-humidity environment, such as the top floor of a building, may require the use of insulation materials thicker than the ones specified in the chart above.

*When certain specifications presented by the client must be met, ensure that they also meet the specifications on the chart above.

10. Wiring

10.1. Caution

1Follow ordinance of your governmental organization for technical standard re- lated to electrical equipment, wiring regulations and guidance of each electric power company.

2Wiring for control (hereinafter referred to as transmission line) shall be (5 cm or more [2in or more]) apart from power source wiring so that it is not influenced by electric noise from power source wiring. (Do not insert transmission line and power source wire in the same conduit.)

3Be sure to provide designated grounding work to outdoor unit.

4Give some allowance to wiring for electrical part box of indoor and outdoor units, because the box is sometimes removed at the time of service work.

5Never connect the main power source to terminal block of transmission line. If connected, electrical parts will be burnt out.

6Use 2-core shield cable for transmission line. If transmission lines of different systems are wired with the same multiplecore cable, the resultant poor trans- mitting and receiving will cause erroneous operations.

7Only the transmission line specified should be connected to the terminal block for outdoor unit transmission.

(Transmission line to be connected with indoor unit : Terminal block TB3 for

transmission line, Other : Terminal block TB7 for centralized control) Erroneous connection does not allow the system to operate.

8In the case of connecting with an upper class controller or to conduct group operation in different refrigerant systems, the control line for transmission is required between the outdoor units.

Connect this control line between the terminal blocks for centralized control. (2-wire line with no polarity)

When conducting group operation in different refrigerant systems without con- necting to the upper class controller, replace the insertion of the short circuit connector from CN41 of one outdoor unit to CN40.

9Group is set by operating the remote controller.

10.2.Control box and connecting position of wiring

1.Connect the indoor unit transmission line to transmission terminal block (TB3), or connect the wiring between outdoor units or the wiring with the central con- trol system to the central control terminal block (TB7).

When using shielded wiring, connect shield ground of the indoor unit transmis-

sion line to the ground screw () and connect shield ground of the line be- tween outdoor units and the central control system transmission line to the

shield (S) terminal of the central control terminal block (TB7) shield (S) termi- nal. In addition, in the case of outdoor units whose power supply connector CN41 has been replaced by CN40, the shield terminal (S) of terminal block

(TB7) of the central control system should also be connected to the ground

screw ().

Fix the wiring securely in place with the cable strap at the bottom of the termi- nal block so that the external force if not applied to the terminal block. External force applied to the terminal block may damage the block and short-circuit, ground fault, or fire may result.

[Fig. 10.2.1] (P.5)

A Power source

B Transmission line

CGround screw

2.Conduit mounting plates (ø27 mm [1-3/32 in], ø33 mm [1-5/16 in], ø46 mm [1- 13/16 in], ø53 mm [2-3/32 in]) are being provided. Pass the power supply and transmission wires through the appropriate knock-out holes, then remove the knock-out piece from the bottom of the terminal box and connect the wires.

3.Fix power source wiring to terminal box by using buffer bushing for tensile force (PG connection or the like).

4.Narrow the opening by using a conduit to keep small animals out.

10.3. Wiring transmission cables

1Types of control cables

1. Wiring transmission cables

Types of transmission cables: Shielding wire CVVS or CPEVS

Cable diameter: More than 1.25 mm2 [AWG16]

Maximum wiring length: Within 200 m [655ft]

Maximum length of transmission lines for centralized control and indoor/out- door transmission lines (Maximum length via indoor units): 500 m [1640ft] MAX The maximum length of the wiring between power supply unit for transmission lines (on the transmission lines for centralized control) and each outdoor unit and system controller is 200 m [655ft].

2. Remote control cables

M-NET Remote Controller

Kind of remote control cable

Sheathed 2-core cable (unshielded)

Cable diameter

0.3 to 1.25 mm2 [AWG22 to 16]

(0.75 to 1.25 mm2 [AWG18 to 16])*

 

When 10 m [32ft] is exceeded, use cable with

Remarks

the same specifications as 1. Wiring transmis-

 

sion cables.

• MA Remote Controller

 

 

 

Kind of remote control cable

Sheathed 2-core cable (unshielded) CVV

Cable diameter

0.3 to 1.25 mm2 [AWG22 to 16]

(0.75 to 1.25 mm2 [AWG18 to 16])*

Remarks

Within 200 m [656ft]

*Connected with simple remote controller.

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Mitsumi electronic PUHY-P-TGMU-A Control box and connecting position of wiring, Wiring transmission cables

PUHY-P-TGMU-A specifications

The Mitsumi Electronic PUHY-P-TGMU-A is a cutting-edge multi-split air conditioning system that adopts advanced technologies to enhance indoor comfort and energy efficiency. Designed for both residential and commercial use, this unit stands out due to its innovative features and remarkable performance capabilities.

One of the key characteristics of the PUHY-P-TGMU-A is its ability to effectively cool or heat multiple spaces simultaneously. With a capacity range that meets the demands of diverse environments, this system can seamlessly cater to larger installations. This makes it ideal for office buildings, retail spaces, or homes with multiple rooms requiring climate control.

The unit is equipped with inverter technology, which allows for variable speed operation of the compressor. This not only results in significant energy savings but also provides a stable temperature and optimal comfort levels. The inverter technology adjusts the power consumption based on the cooling or heating requirements in real-time, thereby reducing energy costs and increasing overall efficiency.

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In addition, the unit comes with smart connectivity options. Users can control the system remotely through a smartphone app, allowing for seamless adjustments to settings from anywhere at any time. This smart technology not only enhances convenience but also enables users to monitor energy consumption and adjust schedules to maximize efficiency when spaces are unoccupied.

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In summary, the Mitsumi Electronic PUHY-P-TGMU-A combines sophisticated technology, energy efficiency, and user-friendly features to create a versatile and highly effective climate control solution. Whether for personal or business use, this multi-split air conditioning system proves to be an investment in comfort and innovation.