Detroit-radiant-products-company QTS Series Manuel d'utilisateur télécharger pdf (Page 26)

QTS Series

3.0 Installation • Gas Supply

Chart 3.5 • Manifold Pressure

Pressure Equivalents: 1 Inch W.C. equals .058 oz/sq. in. equals 2.49 mbar.

NOTE: Check manifold pressure at the tap on the gas valve. Small variations in manifold pressure

(actual vs. published) may exist due to changing atmospheric conditions. Readings will be above

atmospheric pressure.

Gas Supply

WARNING

Improperly connected gas lines may result in ﬁre,

explosion, poisonous fumes, toxic gases, asphyxiation or

death. Connect gas lines in accordance to national, state,

provincial and local codes.

IMPORTANT! Before connecting the gas supply to the burner control box:

• Verify that the heater’s gas type (as listed on the rating plate) matches that of your application.

• Check that the gas piping and service has the capacity to handle the total gas consumption of all

heaters being installed, as well as any other gas appliances being connected to the supply line.

• Check that the main gas supply line is of proper diameter to supply the required fuel pressures.

• If utilizing used pipe, verify that its condition is clean and comparable to a new pipe. Test all gas

supply lines in accordance with local codes.

• Test and conﬁrm that inlet pressures are correct. Refer to the heater rating plate for gas type and

the required minimum and maximum pressures (see Chart 3.5). The gas supply pipe must be of

sufﬁcient size to provide the required capacity and inlet pressure to the heater (if necessary,

consult the local gas company). Do not exceed the maximum allowed pressures for the heater,

the space or the gas piping system.

Type of

Gas

Required Manifold

Pressure

Minimum Inlet

Pressure

Maximum Inlet

Pressure

Natural 3.5 Inches W.C. 5.0 Inches W.C. 14.0 Inches W.C.

Liqueﬁed Propane 10.0 Inches W.C. 11.0 Inches W.C. 14.0 Inches W.C.

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Detroit-radiant-products-company QTS Series Manuel d'utilisateur Page 26