Sterling TUBULAR GAS FIRED PROPELLER UNIT HEATERS Скачать руководство пользователя страница 8

8

PIPE INSTALLATION

Figure 4 - Pipe Installation, Standard Controls

 Never use an open flame to detect

gas leaks. Explosive conditions may exist which
may result in personal injury or death!

The appliance and its individual shutoff valve must be
disconnected from the gas supply piping system during
any pressure testing of that system in excess of 1/2
psig (3.5 kPa).

The appliance must be isolated from the gas supply
piping system by closing its individual manual shutoff
valve during any pressure testing of the gas supply
piping system at test pressures equal to or less than
1/2 psig (3.5 kPa).

Table 4 - Gas Piping Requirements

SINGLE STAGE GAS PIPING REQUIREMENTS*

GasType

Natural Gas

Propane (LP) Gas

Manifold

3.5 in. W.C.

10.0 in. W.C.

Pressure

(0.9 kPa)

(2.5 kPa)

14.0 in. W.C. Max.

14.0 in. W.C. Max.

Supply Inlet

(3.5 kPa)

(3.5 kPa)

Pressure

5.0 in. W.C. Min.

11.0 in W.C. Min.

(1.2 kPa)

(2.7 kPa)

*

For single stage application only at normal altitudes.

1. Install the gas piping in accordance with applicable

local codes.

2. Check gas supply pressure. Each unit heater must

be connected to a manifold pressure and a gas
supply capable of supplying its full rated capacity
as specified in Table 4. A field LP tank regulator
must be used to limit the supply pressure to a
maximum of 14 in. W.C. (3.5 kPa). All piping should
be sized in accordance with ANSI Standard Z223.1-
1999, (or the latest edition) National Fuel Gas Code;
in Canada, according to CGA B149. See Tables 1
& 3 for correct gas piping size. If gas pressure is
excessive on natural gas applications, install a
pressure regulating valve in the line upstream from
the main shutoff valve.

3. Adequately support the piping to prevent strain on

the gas manifold and controls.

4. To prevent the mixing of moisture with gas, run the

take-off piping from the top, or side, of the main.

5. Standard Unit Heaters, optional two-stage units are

supplied with a combination valve which includes:
a. Manual "A" valve
b. Manual "B" valve
c. Solenoid valve
d. Pilot safety
e. Pressure regulator
Pipe directly into the  combination valve (see Figure
4).

6. A 1/8" N.P.T. plugged tapping, accessible for test

gauge connection, must be installed immediately
upstream of the gas supply connection to the
appliance.

7. Provide a drip leg in the gas piping near the gas

unit heater. A ground joint union and a manual gas
shutoff valve should be installed ahead of the unit
heater controls to permit servicing. The manual
shutoff valve must be located external to the jacket.
(See  Figure 4)

8. Make certain that all connections have been

adequately doped and tightened.

 Do not over tighten the inlet gas

piping into the valve. This may cause stresses that
will crack the valve!

NOTICE: Use pipe joint sealant resistant to the action
of liquefied petroleum gases regardless of gas
conducted.

 Check all pipe joints for leakage

using a soap solution or other approved method.
Never use an open flame or severe personal
injury or death may occur!

Содержание TUBULAR GAS FIRED PROPELLER UNIT HEATERS

Страница 1: ...that these substances may cause cancer birth defects or other reproductive harm INSTALLER S RESPONSIBILITY Installer Please Note This equipment has been test fired and inspected It has been shipped f...

Страница 2: ...6 Proper Clearances 5 6 Suspension of Units 5 6 Gas Piping 7 8 ELECTRICAL CONNECTIONS 9 10 11 12 13 VENTING 14 15 16 17 18 OPERATION Explanation of Controls and Operation 19 Main Burner Orifice Sched...

Страница 3: ...rocedures listed on Gas Equipment Start Up Sheet located in this manual Use only the fuel for which the heater is designed see rating plate Using LP gas in a heater that requires natural gas or vice v...

Страница 4: ...8 5 8 48 5 8 473 473 473 778 778 778 1235 1235 1235 F Discharge Opening Width 18 3 4 18 3 4 18 3 4 30 3 4 30 3 4 30 3 4 48 3 4 48 3 4 48 3 4 476 476 476 781 781 781 1238 1238 1238 G Depth to CL Flue 4...

Страница 5: ...epair Garages In Canada installation must be in accordance with current CGA B149 Installation Codes for Gas Burning Appliances and Equipment AIR DISTRIBUTION Direct air towards areas of maximum heat l...

Страница 6: ...acent materials Make certain that the lifting methods used to lift the heater and the method of suspension used in the field installation of the heater are capable of uniformly supporting the weight o...

Страница 7: ...ity Gas Nominal Iron Internal Length of Pipe Feet meters Pipe Size Dia 10 20 30 40 50 60 70 80 90 100 125 150 175 200 in in 3 0 6 1 9 1 12 2 15 2 18 3 21 3 24 4 27 4 30 5 38 1 45 7 53 3 61 0 1 2 0 622...

Страница 8: ...test edition National Fuel Gas Code in Canada according to CGA B149 See Tables 1 3 for correct gas piping size If gas pressure is excessive on natural gas applications install a pressure regulating va...

Страница 9: ...n cause severe personal injury or death Standard units are shipped for use on 115 volt 60 hertz single phase electric power The motor name plate and electrical rating of the transformer should be chec...

Страница 10: ...Units Equipped with Hot Surface Pilot Single Stage 100 400 Unit Sizes with Natural Gas and Propane LP Gas Figure 5d Primary HWSV9540 SV9640 Hot Surface Ignition Gas Controls Figure 5e Alternate HWSV95...

Страница 11: ...11 ELECTRICAL CONNECTIONS continued Figure 5f Tubular Units Equipped with S8600 Single Stage Ignition Optional for Tubular 100 400 Unit Sizes with Natural Gas and Propane LP Gas...

Страница 12: ...12 ELECTRICAL CONNECTIONS continued Figure 5g Tubular 100 400 Unit Sizes with Optional 2 Stage Ignition...

Страница 13: ...s in areas under negative pressure due to large exhaust fans or air conditioning When required a flue vent fan should be installed in accordance with the instructions included with the fan 10 Vent con...

Страница 14: ...hall terminate at least four feet 1 2m below four feet 1 2m horizontal from or one foot 0 3m above any door window or gravity vent air inlet into the building The vent terminal must be at least 12 inc...

Страница 15: ...l codes with current CGA B149 1 Installation Codes for Natural Gas Burning Appliances and Equipment or CGA B149 2 Installation Codes for Propane Gas Burning Appliances and Equipment 2 Any reference to...

Страница 16: ...16 Figure 8A Figure 8B VENTING continued...

Страница 17: ...17 VENTING continued Figure 9A Figure 9B...

Страница 18: ...wall thermostat supplied optionally is a temperature sensitive switch which operates the vent system and the ignition system to control the temperature of the space being heated It must be mounted on...

Страница 19: ...unit heaters must be orificed to 90 of the normal altitude rating and be so marked in accordance with CSA certification Check the gas input rate as follows Refer to General Safety Information section...

Страница 20: ...ssure altitude of the unit installation and the technician s name and date on the label using a permanent marker Refer to Installation Instruction section on Adjustments Gas Input Rate for adjusting t...

Страница 21: ...ssure Refer to Operation Replace regulator section of combination gas valve or complete valve Check with local gas supplier for proper orifice size and replace Refer to Operation 1 Clean main burner p...

Страница 22: ...ration 3 Purge air from gas line 4 Follow lighting instruction label adjacent to gas valve 5 Remove pilot orifice Clean with compressed air or solvent Do not ream 6 Refer to Operation 7 Check thermoco...

Страница 23: ...cal Connections 2 Replace motor 3 Check for 24V across 1 and 3 terminals on fan relay If 24V is present jumper terminals numbered 2 and 4 If motor runs the relay is defective and must be replaced If 2...

Страница 24: ...will be free from defects in material or workmanship for 1 year from the date of shipment from the factory or one and one half 1 1 2 years from the date of manufacture whichever occurs first The Manuf...

Страница 25: ...the heat exchanger 5 Remove any dirt dust or other foreign matter from the burners using a wire brush and or compressed air Ensure that all parts are unobstructed Inspect and clean the pilot burner i...

Страница 26: ...FICATION OF PARTS PROPELLER UNIT HEATERS Figure 13 Heat Exchanger Assembly Figure 14 Electrical Control Panel Figure 11 Propeller Parts Figure 12 Component Parts D4430 Fan Guard Fan Blade Hardware Har...

Страница 27: ...er Assembly 300 400 Unit Sizes Shown HOW TO ORDER REPLACEMENT PARTS Please send the following information to your local representative if further assistance is needed contact the manufacturer s custom...

Страница 28: ...and all the controls on this equipment If not contact your wholesaler or rep DO NOT START this equipment unless you fully understand the controls GAS EQUIPMENT START UP GENERAL With power and gas off...

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