Installation

Gas pipework installation

The installation must conform to all standards and regulations.

The gas supply pipework and gas stop valve to be installed near the unit must be sized so as to ensure the gas pressure is sufficient at the unit inlet when operating at full load.

CAUTION! Should the pressure at the unit valve gas inlet be higher than 0.035 bar, an expansion valve must be installed.

The pipework must be self- supporting and the final connection to the burner must be made by a flexible pipe. Provide a dust protection (filter) upstream the unit connection.

CAUTION! The gas pipework must not exert any stress on the burner gas connection.

Note: Expansion valve must be adapted to the type of gas used:

G 20: 20 mb

G 25: 25 mb

G 31 (Propane): 37 or 50 mb

Table 6 - Gas burner models

Unit

Burner size

 

 

YSD/YSH 060

G120

 

 

YSD/YSH 072

G200

 

 

YSD/YSH 090

G200

 

 

YSD/YSH 102

G250

 

 

YSD/YSH 120

G250

 

 

See Table 51 for burner performance.

Gas leak check procedure

Figure 12 - Typical gas supply pipework

1.Vent the gas line

2.Gas supply line pressure test: close valve 4 and open valve 2

3.Leak-check the gas pipe.

Look for gas pipe leaks using "Typol", "1000 bulles" or a similar product. Do not use soapy water.

WARNING! Never use an open flame to check for gas leaks.

Required gas pressure at the unit inlet connection are given in Table 50.

Note: To operate with propane gas, the burner is fitted with a pressure limiter (supplied by Trane)

1 = Evaporator section

2 = Gas burner section

3 = Condenser section

4 = Gas supply connection

5 = Gas supply line

6, 8 = Gas stop valve (Field supplied) 7 = Expansion valve (Field supplied) 9 = Filter (Field supplied)

RT-SVX20A-E4

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Trane TSD, TSH 060 manual Gas pipework installation, Gas leak check procedure, Gas burner models, Unit

TSD, TSH 060 specifications

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