Schwank ECOSCHWANK-MILLIVOLT Istruzioni operative

SP-MECM-BX-05A

ecoSchwank - Millivolt Manual

RD: MAY, 2004

RL: 5

SCHWANK GAS FIRED

INFRA RED HEATERS

LUMINOUS SERIES

ECOSCHWANK

- MILLIVOLT

INSTALLATION /

OWNER’S

MANUAL

FOR YOUR SAFETY:

Do not store or use gasoline or other flam-

mable vapours and liquids in the vicinity

of this or any other appliance.

If you smell Gas:

>Extinguish any open flames

>Don’t touch electrical switches

FIELD CONVERTIBILITY:

“The conversion shall be carried out in accordance with the

requirements of the authorities having jurisdiction and in

accordance with the requirements of the B149.1-00 ( latest

edition) INSTALLATION CODE” in Canada, and the ANSI

Z223.1 (latest edition) in the U.S.A.

FOR YOUR SAFETY

If you smell gas:

1) Open windows

2) Don’t touch electrical switches

3) Extinguish any open flame

Immediately call your gas supplier

SP-MECM-BX-05A

ecoSchwank - Millivolt Manual

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NOTICE:

Schwank Inc., reserves the right to make

changes to equipment and specifications

without obligation or notification.

All codes are current at the time of printing.

This publication, or parts thereof, may not be re-

produced in any form, without prior written

consent from Schwank Inc. Unauthorized

use or distribution of this publication

is strictly prohibited.

Schwank Inc.

5285 Bradco Boulevard,

Mississauga, Ontario,

phone: (905) 712-4766

fax: (905) 712-8336

Schwank Inc.

PO Box 988

Waynesboro,

Georgia,USA 30830

Phone: (706) 554-6191

Technical Support: 1-877-446-3727

Fax: (706) 554 9390

e-mail: info@schwankheaters.com

http://www.schwankheaters.com

SP-MECM-BX-05A

ecoSchwank - Millivolt Manual

RD: MAY, 2004

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TABLE OF CONTENTS

1. GENERAL................................................................1

2. INSTALLATION REQUIREMENTS ......................1

2.1 INSTALLATION IN AIRCRAFT HANGARS ..1

2.2 INSTALLATION IN COMMERCIAL

GARAGES ..........................................................2

2.3 INSTALLATIONS OTHER THAN SPACE

HEATING...........................................................2

2.4 MOUNTING CLEARANCES ............................2

2.5 HEATER MOUNTING ......................................2

2.6 VENTILATION REQUIREMENTS ..................3

2.7 GAS SUPPLY LINE INSTALLATION .............3

2.8 GAS PRESSURE ...............................................3

3. INSTALLATION PROCEDURES...........................4

4. AIR BORNE PARTICLES .......................................5

5. SERVICE GUIDE.....................................................5

6. LIGHTING INSTRUCTIONS..................................6

7. THERMOSTAT CONTROL ....................................6

8. TROUBLESHOOTING GUIDE...............................7

8.1 MAINTENANCE..............................................7

9. DIAGRAMS AND SPECIFICATIONS....................8

9.1 DIMENSION DIAGRAM ..................................8

9.2 SUSPENSION HARDWARE DIAGRAM .........8

9.3 MOUNTING DIAGRAM ...................................9

9.4 HORIZONTAL CLEARANCE TO

COMBUSTIBLES ..............................................9

9.5 UP TO 45º ANGLE CLEARANCE TO

COMBUSTIBLES ..............................................9

9.6 SUGGESTED MOUNTING DISTANCE

FOR COMFORT ..............................................10

10. GAS VALVE WIRING ........................................11

11. HIGH ALTITUDE INSTALLATIONS ..................12

12. SPARK IGNITION CIRCUIT................................13

13. START UP SHEET ................................................14

14. LIMITED WARRANTY ........................................16

TOPIC PAGE NUMBER TOPIC PAGE NUMBER

ECOSCHWANK

- MILLIVOLT

LUMINOUS SERIES

INFRA-RED GAS TUBE HEATERS

SP-MECM-BX-05A

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Page 1

The Schwank gas fired infra-red luminous heaters

are suitable to be installed for heating of non-

residential indoor or outdoor spaces. These instal-

lation instructions are intended for the Eco-

Schwank heaters. All installations must conform

to the following installation requirements. All lo-

cal, provincial and national code requirements in-

cluding the current latest edition B149.1 IN-

STALLATION CODE” in Canada, and ANSI

Z223.1 in the U.S.A. for gas burning appliances

and equipment. The latest edition Electrical Code

PART 1 CSA C22.1 in Canada and ANSI/NFPA

N0 70 in the U.S.A. must also be observed. Due

to ever changing standards and requirements, re-

vision to our equipment and installation proce-

dures may be necessary. In case of discrepancies,

the latest installation manual will take priority.

The ecoSchwank heater may be installed for

heating of non-residential indoor spaces. It is be-

yond the scope of these instructions to embrace

all conditions that will be encountered. All sys-

tem piping must be supported in accordance with

acceptable practice, local codes, and applicable

standards.

2. INSTALLATION REQUIREMENTS

The Schwank Luminous Heaters are suitable for

use in aircraft hangars when installed in accor-

dance with the following:

A. A minimum clearance of 10 ft above either the

highest fuel storage compartment or the high-

est engine enclosure of the highest aircraft

which may occupy the hangar. The clearance

to the bottom of the heater shall be measured

from the upper surface of either the fuel stor-

age compartment or the engine enclosure,

whichever is higher from the floor.

B. A minimum clearance of 8 ft must be main-

tained from the bottom of the heater in other

sections of the aircraft hangars, such as offices

and shops, which communicate with areas for

servicing or storage. Refer to sections 9.3 to

9.5 for proper mounting clearances to com-

bustibles.

C. Heaters must be located so as to be protected

from damage by aircraft and other objects,

such as cranes and movable scaffolding.

D. Heaters must be located so as to be accessible

for servicing and adjustment.

2.1 INSTALLATION IN AIRCRAFT HANGARS

SCHWANK GAS FIRED INFRA-RED HEATERS

ECOSCHWANK

LUMINOUS SERIES

INSTALLATION INSTRUCTIONS

1. GENERAL

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2.3 INSTALLATIONS OTHER THAN SPACE HEATING

Use for process applications will void the C.S.A.

certification and require governing authority field

certification at the installers / owners

responsibility and expense.

2.4 MOUNTING CLEARANCES

2.5 HEATER MOUNTING

The Schwank Luminous Heater must be

mounted with minimum clearances as shown in

sections 8.3 to 8.5. It should also be located with

respect to building construction and

The Schwank Luminous Heaters cannot be installed inside degreas-

ing plants, nor can they be in an area where chlorine, fluorine or bro-

mine are present.

The Schwank Luminous Heaters are approved for

both horizontal and angle mounting. When angle

mounting, the short axis may be rotated in either

direction to a maximum of 300degrees

For either horizontal or angle mounting, the long axis of the heater

must be level. Use only non-combustible mounting hardware.

equipment so as to provide sufficient clearance

and accessibility for servicing and cleaning of

burners and ignition control.

with the venturi always in the upper position. Im-

proper angle mounting can result in damage to the

heater or unsafe operation.

2.2 INSTALLATION IN COMMERCIAL GARAGES

The Schwank Luminous Heaters are suitable for

use in commercial garages when installed in ac-

cordance with ANSI/NFPA No. 88B 1985 (latest

edition), which states clearances to combustible

construction or material in storage, from heater

and vent, must conform to standard NFPA No. 54

(ANSI Z223.1 latest edition), in

the U.S.A. and the CSA B149.1 in Canada.

“Overhead heaters shall be installed at least (8)

feet above the floor”. In addition, they shall be lo-

cated high enough to maintain the minimum dis-

tance to combustibles, as shown on the heater rat-

ing plate, between the heater and any vehicles

parked below the heater

WARNING:

IMPORTANT:

Page 2

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The maximum supply pressure must be limited to

14" W.C. (0.51 psi). If the line pressure is above

14" W.C., then a separate pressure reducing regu-

lator must be used. The minimum pressure at the

inlet to the heater regulator must be equal to or

greater than 6.0" W.C. for natural gas

and 11.0" W.C. for propane gas.

A sealed regulator is supplied with the heater

which maintains the proper manifold pressure

when the main burner is operating under the fol-

lowing pressure:

2.7 GAS SUPPLY LINE INSTALLATION

A. All piping must be installed according to local

codes.

B. It is recommended to install an approved

flexible connector between the heater and gas

piping available as option from Schwank.

C. A drip-pocket at the inlet connection must be

provided.

D. On propane-fired units, a main line filter is

recommended.

E. Piping joint compounds must be resistant to

the action of liquefied petroleum gases.

F. All piping joints should be tested for leaks

with a soap and water solution.

Do not install any gas piping in heat zones. Do not subject heater con-

trols to leak test pressures when checking the main supply piping.

2.8 GAS PRESSURE

LINE PRESSURE IWC

MANIFOLD PRESSURE IWC

AT TAP IN GAS VALVE

MINIMUM MAXIMUM

NATURAL GAS 6.0 14.0 5.0

PROPANE GAS 12.0 14.0 11.0

Natural gas models are orificed for 1000 BTU/CU FT., and propane gas models are

orificed for 2500 BTU/CU FT.

2.6 VENTILATION REQUIREMENTS

In Canada it is required by law that an unvented

heater be electrically interlocked to an independ-

ent exhaust fan by means of an Air Proving

Switch. The exhaust fan must be sized to create 3

cfm for every 1000 Btu/hr or fraction thereof, of

total input of installed equipment. Consult CSA.

B149.1 latest edition for requirements.

In the USA when a heater is installed unvented

the system requires the exhausting of at least 4

cfm per 1000 Bth/hr on NG, and 4.5 cfm per 1000

Btu/hr for LP. By natural or mechanical means, or

electrically interlocked to an independant exhaust

fan, for the total input of all heaters installed. Ex-

haust openings for removing flue products shall

be above the level of the heaters.. Consult your

local codes and ANSI Z223.1 latest edition.

CAUTION:

Page 3

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3. INSTALLATION PROCEDURES

A. Properly install gas line as outlined in section

2.7, page 3.

B. Properly connect the ignition control assembly

to the heater.

C. Mount heaters by using non-combustible

mounting hardware as illustrated in Diagrams

2 on page 8. Observe the minimum clearances

as outlined in sections 9.3 to 9.6.

D. Connect heater to the main gas line. It is rec-

ommended to use a 1/2" flexible connector to

absorb gas line expansion and any

building vibration (available as option from

Schwank Inc.)

E. Mount thermostat at desired location, away

from direct infra-red rays of heater and not on

cold wall without sufficient insulation back-

ing. Install exhaust fan, air switch and trans-

former, as per section 2.6, page 3.

F. Check gas line for leakage by using soap test

or gas meter test. Ensure gas pressure meets

the requirements outlined in section 2.8, page

When testing the main gas line pressure, ensure the gas shut-off valve is

“OFF”, otherwise damage to the combination gas valve will result.

WARNING:

Page 4

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Under certain conditions, heater may discolour due to

ambient air borne particle deposits on the outside sur-

face. These deposits in no way affect the operation of

the heater nor the manufacturer’s warranties.

If heater back-fires during operation, then it must be turned off immediately.

Indication of back-firing:

A. Loud ignition noise, then followed by distinct

hissing sound.

B. Little or no visible burning on the ceramic

tile.

C. Combustion is taking place inside the burner

body.

Cause & remedy of back-firing:

A. Improper gas pressure entering the venturi

tube = check pressure.

B. Breakage of a ceramic tile and or gasketing =

replace damaged part.

C. Faulty sealing of the ceramic tile to the burner

body, caused by breakdown of gasketing ma-

terial = contact your Schwank distributor.

4. AIR BORNE PARTICLES

5. SERVICING GUIDE

Servicing of heater is essential for continued effi-

cient operation. Servicing should be carried out

annually by qualified service personnel.

A. Clean the ceramic tile with compressed air.

Avoid directing air stream at gasketing

material between tile and heater body. The

air pressure must be lower then 20 psi.

B. Clean the venturi tube with compressed air.

C. Clean the reflectors.

WARNING:

Page 5

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6. LIGHTING INSTRUCTIONS

7. THERMOSTAT CONTROL

1. Turn heater thermostat to lowest setting. Turn

gas control knob to “OFF” position for five min

utes before lighting.

2. Open Pilot access door to locate pilot and turn

gas control knob to “PILOT” position.

3. Depress gas control knob and light pilot. Con

tinue to hold knob for one minute after pilot is

lit.

4. Turn gas valve to “ON” position.

5. Turn Heater thermostat to desired temperature.

B. If heater does not light, shut down heater.

C. To shut down heater:

1. Turn heater thermostat to lowest setting.

2. Depress gas control knob and turn to

“OFF” position.

Manufactured under the following U.S. Patents:

3,825.403 Patented in Canada:

other Patents Pending.

WALL THERMOSTAT

50’ MAXIMUM

Page 6

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8. TROUBLE SHOOTING GUIDE

SYMPTOMS POSSIBLE CAUSES OR CORRECTION

1. Pilot will not light a. Make sure the gas supply is turned on.

b. Air in line. Continue to relight until air is released.

c. Check for a blocked pilot orifice.

2. Pilot outage a. Improper pilot flame adjustment. Refer to Figure 7.

b. Check pilot generator contacts and tighten if necessary.

c. Defective pilot generator—replace.

d. Defective valve—replace

3. Pilot flame will not stay lit when valve a. Improper pilot flame adjustment. Refer to figure 7.

knob is released b. Remove pilot orifice—check and clean—reinstall.

c. Defective thermostat—replace.

d. Defective valve—replace.

4. Burner goes out. a. Thermostat satisfied—normal operation.

b. Defective valve—replace.

5. Main burner and pilot goes out. a. Improper venting or blocked flue. Correct venting

problem and relight.

b. Strong Wind conditions.—restart heater.

c. Make sure the gas supply is turned on.

6. Burner backflashes or makes noise. a. Check burner and orifice for damage. Replace if necessary.

b. Check for cracked tile. Replace if necessary.

7. Yellow main burner flame. a. Check and clean burner and orifice.

b. Check line and manifold gas pressure.

8. Yellow pilot flame. a. Small yellow tip—normal operation.

b. Remove pilot orifice – check and clean—replace.

9. Poor thermostatic control. a. Check for proper setting.

b. Check wall thermostat section or gas valve assembly.

c. Replace thermostat section or gas valve assembly.

d. Check wall thermostat location.

10. Main burner will not light a. Check thermostat setting.

b. Check to see if valve is in the ON position.

8.1 MAINTENANCE

The efficiency of the heater can be impaired if it gets

dirty. If the heaters are installed in areas where con-

siderable dust is present in the air, periodic burner

cleaning may be necessary. Dust may be entrained

in the primary air supply and deposited on the back

side of the ceramic. This can be very easily removed

by dusting the ceramic face and the air inlet with a

blast of low pressure air, a maximum of 20 psi.

Occasionally pilots or the main burner refuse to func-

tion properly after a summer shutdown. For the pilot,

this problem can be corrected by removing the pilot

burner and cleaning out the gas passageways. The

main burner passageways can be cleaned out by us-

ing a flexible brush comparable to the type used to

clean glass bottles. (In several instances, small co-

coons or spider webs have been found present in

these areas.) Preventative maintenance is the best

policy. Heaters should be cleaned once a heating

season.

FIG. 7

Page 7

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