Space-Ray RFPA10C-N6 Istruzioni per l'installazione

Form 41357040

May 2021

INSTALLATION AND OPERATION INSTRUCTIONS

CONSTRUCTION FLOOR HEATER

Models: RFPA10C - N6/L6/N6C/L6C/N9A/L9A

Printed in U.S.A.

SAVE FOR FUTURE REFERENCE

Space-Ray Division, Gas Fired Products, Inc. P.O. Box 36485, Charlotte, NC 28236 (704) 372-3485

Scan warranty QR code on the right to

Form 41357040

May 2021

TABLE OF CONTENTS

SECTION 1 GENERAL INFORMATION………………………….……………………………….. 2

SECTION 2 SPECIFICATIONS . . . . . . . . . .. . . . . . . . . . . . .. . . . . . . . . . . . . . . . . 3

SECTION 3 ADDING OPTIONAL REFLECTOR. . . . . . . . . . .. . . . . . . . . . . . 4

SECTION 4 MINIMUM CLEARANCES TO COMBUSTIBLES . . . . . . . . . . . . . . . . . 5

SECTION 5 GAS CONNECTIONS AND REGULATION . . . .. . . . . . . . . . . . . . . . . 5

SECTION 6 INSTRUCTIONS FOR PRESSURE TEST GAUGE CONNECTION . . . 5

SECTION 7 INFORMATION FOR PROPANE GAS FLOOR MODELS ONLY . . .. 6

SECTION 8 VENTILATION AND COMBUSTION AIR . . . . . .. . . . . . . . . . . . . . . . . 9

SECTION 9 LIGHTING AND SHUTDOWN INSTRUCTIONS . . . . . . . . . . . . . . . . . .11

SECTION 10 CLEANING AND ANNUAL MAINTENANCE . . . . . . . . . . . . . . . . . . . . .12

SECTION 11 REPLACING PARTS . . . . . . . .. . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . 13

SECTION 12 REPLACEMENT PARTS LIST RFPA10C . . . .. . . . . . . . . . . . . . . . .. . 13

LIST OF FIGURES

FIGURE 1 OPTIONAL REFLECTOR ASSEMBLY . . . . . . .. . . . . . . . . . . . . . . . . . 4

FIGURE 2 REGULATOR AND HOSE ASSEMBLY . . . . . .. . . . . . . . . . . . . . . . . . . 8

FIGURE 3 GAS CONTROL KNOB SETTING POSITION . .. . . . . . . . . . . . . . . . . .12

FIGURE 4 REPLACEMENT PARTS . . . .. . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . 15

LIST OF TABLES

TABLE 1 MODEL INPUT RATING . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . 3

TABLE 2 MODEL DIMENSIONS .. . . . .. . . . . . . . . . . . .. . . . . . . . . . . . . . . . .4

TABLE 3 RFPA10C CLEARANCES TO COMBUSTIBLES . . . . . . . . . . . . . . . . 5

TABLE 4 GAS SUPPLY PRESSURES . .. . . . . . . . . . . . .. . . . . . . . . . . . . . . . . 6

TABLE 5 MAXIMUM CONTINUOUS FLOW IN BTU/HR. AT VARIOUS

TEMPERATURES (DEGREES F) . . . . . . . . . . . . . . . . . . . . . . . . . .6

TABLE 6 REPLACEMENT PARTS . . . .. . . . . . . . . . . . .. . . . . . . . . . . . . . . . . .13

Form 41357040

May 2021

SECTION 1: RFPA10C GENERAL INFORMATION

INSTALLER: This manual is the property of the owner. Please present this manual to the owner when you leave the

job site.

This heater is a self-contained infrared floor model heater for use in the temporary heating

of buildings under construction, repair or alteration.

INSTALLATION REQUIREMENTS

The heater is designed and approved for use as a construction heater in accordance with Standard ANSI.Z83.7 –

CGA 2.14. CHECK WITH YOUR LOCAL FIRE SAFETY AUTHORITY IF YOU HAVE ANY QUESTIONS ABOUT

APPLICATIONS. Other standards govern the use of fuel gases and heat producing products in specific

applications. Your local authority can advise you about these.

Form 41357040

May 2021

This heater is intended for use in the temporary heating of buildings or structures under construction, alteration

or repair.

Installation of this heater must be in accordance with all applicable codes shown in the instructions and/or the

local codes and authorities having jurisdiction. Heaters shall be installed by a licensed contractor or licensed

installer. Clearances to combustibles as outlined in this manual should always be observed.

Every heater shall be located with respect to building construction and other equipment so as to permit access to

the heater. Each installer shall use good installation practices when locating the heater and must give

consideration to service accessibility. The heater should be inspected before each use, and at least annually by a

qualified service person.

This heater is for INDOOR INSTALLATION ONLY. While the products of combustion are expelled into the building,

national codes require ventilation in the building to dilute these products of combustion. The ventilation may be

provided by gravity or mechanical means. Refer to Section 8 “VENTILATION AND COMBUSTION AIR” on page 10 of

this manual for minimum requirements for ventilation and combustion air.

The heater must not be installed where it is directly exposed to water spray, rain and/or dripping water.

Copies of the National Fuel Gas Code (ANSI Z22.3.1 –latest edition) are available from the American Gas

Association Laboratories, 8501 E. Pleasant Valley Road, OH 44131. All NFPA codes are available from the

National Fire Protection Association, Batterymarch Park, Quincy, MA 02269.

SECTION 2: SPECIFICATIONS

Table 1: Model input rating

MODEL NO

GAS TYPE

INPUT BTU/HR

ORIFICE SIZE

RFPA10C

NATURAL

100,000

#12 (.1890)

RFPA10C

PROPANE

95,000

7/6 4 (.1094)

Gas Pipe connection: 1/2” NPT Female

This product can expose you to chemicals including ceramic fibers, which are known to

the State of California to cause cancer, and carbon monoxide, which is known to the

State of California to cause birth defects or other reproductive harm. For more

information go to www.p65warnings.ca.gov.

Form 41357040

May 2021

MODEL SUFFIXES:

Natural Gas

Propane Gas

Standing Pilot Ignition, 100% Safety Shutoff, Manual Valve (Baso)

Standing Pilot Ignition, 100% Safety Shutoff, Manual Valve (WhiteRodgers)

Standing Pilot Ignition, 100% Safety Shutoff, Thermostatic Controlled Valve (Robertshaw)

This heater is for operation at elevations of 0-2000 FT only.

Table 2: Model Dimensions

DIMENSIONS

RFPA10C

HEATER

18"Dia. x 32-3/4"

PACKAGED

18-1/2" x 18-1/2" x

34"

SHIPPING WEIGHTS

55 LBS.

SECTION 3: ADDING OPTIONAL REFLECTOR

A 180 degree reflector can be used where it is desirable to direct the heat into a specific work area. This may be

ordered as an accessory item, Part No. 04310030 for Model RFPA10C.

INSTALLATION INSTRUCTIONS

3.1. Loosen and remove the 1/213 hex nut and washer from the heater assembly.

3.2. Lift the head from the heater.

3.3. Place reflector on outside of expanded metal guard with bottom edge inside lip of the base head

assembly.

3.4. Replace upper head with lip over the expanded guard and reflector.

Form 41357040

May 2021

SECTION 4: MINIMUM CLEARANCES TO COMBUSTIBLES

The heater shall be operated only on a NON-COMBUSTIBLE, level floor. Minimum clearances to combustible walls

and ceilings are listed below:

Table 3: RFPA10C Clearances to combustibles.

MODEL RFPA10C

FRONT

SIDES

REAR

TOP

CLEARANCE FROM

PROPANE CYLINDER

WITH REFLECTOR

120"

60"

48"

54"

10 FEET

WITHOUT REFLECTOR

----

60"

----

54"

10 FEET

SECTION 5: GAS CONNECTIONS AND REGULATION

5.1. The installation must conform with local codes, or in absence of local codes, with the standard for

the storage and handling of Liquefied Petroleum Gases, ANSI/NFPA 58 and the Natural Gas and

Propane Installation Code, CSA B149.1.

5.2. This heater is intended for construction heating and it must never be used for residential/domestic

heating.

5.3. Connect to the supply tank or manifold in accordance with the latest edition of National Fuel Gas Code

(ANSI Z223.1/ NFPA 54) and local building codes. Authorities having jurisdiction should be consulted

before the installation is made.

5.4. Pipe joint compounds must be resistant to the action of liquefied petroleum gases.

5.5. Where local codes do not prohibit, a C.S.A or U.L. approvedflexible connection is recommended between the

rigid piping and the heater. A union and an approved shutoff valve should be installed

before the control valve inlet. The shutoff valve should be installed within 6 feet of the union.

5.6. This appliance is equipped with a manual gas valve and an appliance regulator. The maximum supply

pressure to the appliance is 14" W.C. or ½ P.S.I. If the line pressure is more than the maximum supply

pressure, then use a line regulator which corresponds to the supply pressure.

5.7. After gas connections have been made, make sure the heater and all gas outlets are

turned off before the main gas supply is turned on. Turn the gas pressure on and check for

leaks. To check for leaks, apply a solution of soap suds to all connections and joints

or check by one of the methods listed in Appendix D of ANSI Z223.1/NFPA 54 (latest edition) Natural

Fuel Gas Code. DO NOT USE AN OPEN FLAME OF ANY KIND TO TEST FOR LEAKS.

SECTION 6: INSTRUCTIONS FOR PRESSURE TEST GAUGE CONNECTION

6.1. Supply Pressure: Installer to provide a 1/8"

N.P.T. plugged tapping, accessible for test gauge connection immediately

upstream of the gas supply connection to the heater.

6.2. Manifold Pressure: Turn gas valve to "OFF" position. Remove 1/8" plug from manifold

downstream from the valve and connect 1/8" nipple to the tapped hole. Connect gauge to nipple.

Turn on the gas supply.

6.3. With the main burner operating, check burner manifold pressure using a water manometer (see Table

4 on page 6 for correct setting pressures). If

adjustment is required, remove cover screw of the appliance regulator .

Using a small screwdriver, turn adjustment screw clockwise to increase or counter clockwise 

to decrease pressure to burner. Replace cover screw.

6.4. Gauges which measure in pounds per square inch or

ounces per square inch are not accurate enough to measure or set

the manifold pressure. Use a water manometer.

Form 41357040

May 2021

Table 4: Gas supply pressures

GAS TYPE

MANIFOLD PRESSURE

MINIMUM*

MAXIMUM

Natural

3.5" W.C.

5" W.C.

14" W.C.

Propane

10" W.C.

11" W.C.

14" W.C.

*Minimum permissible gas supply pressure for purpose of input adjustment.

SECTION 7: INFORMATION FOR PROPANE GAS FLOOR MODEL HEATERS ONLY

Heaters used with PROPANE gas must be installed in accordance with the

latest edition of the National Fuel Gas Code NFPA54, Standard for the Storage and Handling of PROPANE Gas -

NFPA 58, all state and local codes or the authority having jurisdiction. See Section 7.1 “PROPANE models only -

Regulator and hose assembly instructions” on page 7 for specific PROPANE connection information.

RFPA10C Installation and Operation Instructions

The heater must be connected to the tank or cylinder by a UL Listed hose assembly or hard

piping. A 15 foot assembly of UL Listed hose is available with each heater from Space-Ray under Part No.

30522020. A PROPANE cylinder kit Part No. 30524000 containing a single stage PROPANE gas regulator

(operation range: 10 to 150 PSIG inlet and 11.0" W.C. outlet) having a POL fitting with an excess flow valve

is included with each hose assembly is also available from Space-Ray.

The hose assembly must be visually inspected prior to each use of the heater. If it is evident there is

excessive abrasion or wear, or the hose is cut, it must be replaced prior to the heater being

put into operation. The replacement hose must be a UL Listed hose assembly.

The volume of a given quantity of liquid PROPANE gas in a container is directly related to its temperature. As a

result, the vaporization rate of a tank or cylinder will decrease as the temperature drops and

as the percentage of liquid in the container becomes smaller. Table 5 on page

6 shows the approximate vaporization rate of a 100 lb. cylinder.

Table 5: Maximum Continuous Flow in BTU/Hr. At Various Temperatures (Degrees F)

Lbs. of Propane in

Cylinder

20 o F

40 o F

60 o F

70 o F

100

167,000

214,000

277,000

300,000

137,000

180,000

214,000

236,000

109,000

140,000

176,000

197,000

105,000

131,000

141,000

107,000

118,000

** Rate of vaporization drops below the heater input rate.

WARNING: Due to the continuous length of time

the heater might be in operation, a 100lb. PROPANE gas cylinder may

not be sufficient in size. Manifolding several cylinders together is a practical way of increasing the time of

operation of these heaters. Operation of the heater with insufficient sized cylinders or when the liquid level

becomes too low will result in poor heater performance and can cause sooting. Consult your

PROPANE gas dealer for proper sizing of container.

Always turn the gas off at the tank or cylinderwhen the heateris not in use. When in operation, keep the heater a

safe distance from the PROPANE gas container and combustible materials as indicated on the

Form 41357040

May 2021

heater and in the instructions. Fasten PROPANE cylinders securely so they cannot be knocked over.

When the heater is to be stored indoors, the connection between the propane supply cylinder(s) and

the heater must be disconnected and the cylinder(s) removed from the heater andstored in accordance with the

Standard or the Storage andHandling of Liquefied Petroleum Gases, ANSI/NFPA 58 and CSA B149.1, Natural Gas

and Propane Installation Code.

7.1. PROPANE models only –Regulator and hose assembly instructions

7.1.1. Attach the POL fitting on the regulator to the PROPANE gas tank / cylinder as

shown in Figure 2 ”Regulator and hose assembly” on page 8. Use a wrench to tighten the connection.

Note: This fitting has left hand threads (like a gas barbecue and tank). Screw the POL fitting counter-

clockwise.

CAUTION: DO NOT try to over tighten this connection. Over tightening may damage the “Excess

flow control safety device” in the POL fitting regulator.

7.1.2. Remove the plastic cap from the end of the 3/8” flare fitting. Connect the 3.8” flare swivel nut

on the end of the regulator/hose assembly to the 3/8” flare tube fitting on the

burner assembly, as shown in Figure 2 ”Regulator and hose assembly” on page

8. Use two wrenches to tighten this connection, screwing

the swivel nut clockwise onto the supported 3/8” flare fitting.

7.1.3. After all the connections are made, they must be checked for leaks prior to operation. The following

instructions describe the leak checking procedure.

i. Make sure the control knob on the heater is turned to “OFF” prior to opening the valve on the

PROPANE tank/cylinder.

ii. Open the tank/cylinder valve fully (turn tank knob counterclockwise). Apply a rich soap and water solution

to the POL fitting into the tank/cylinder as well as the 3/8” flare swivel fitting at the heater.

Bubbles indicate leaks which must be fixed before the heater is operated.

iii. Tighten the joints to stop any leaks. Repeat steps i. and ii. after any tightening.

If you are unable to stop the leaks, DO NOT operate the heater. Contact your local PROPANE dealer.

Form 41357040

May 2021

Figure 2: Regulator and hose assembly

Form 41357040

May 2021

• Do not use this heater for heating human living quarters.

• Use of direct-fired heaters in the construction environment can result in exposure to levels of

CO, CO2, and NO2 considered to be hazardous to health and potentially life threatening.

• Do not use in unventilated areas

• Know the signs of CO and CO2 poisoning

◦ Headaches, stinging eyes

◦ Dizziness, disorientation

◦ Difficulty breathing, feels of being suffocated

• Proper ventilation air exchange (OSHA 29 CFR 1926.57) to support combustion and maintain

acceptable air quality shall be provided in accordance with OSHA 29 CFR Part 1926.154, ANSI

A10.10 Safety Requirements for Temporary and Portable Space Heating Devices and

Equipment used in the Construction Industry or the Natural Gas and Propane Installation

Codes CSA B149.1

◦ Periodically monitor levels of CO, CO2 and NO2 existing at the construction site –at the

minimum at the start of the shift and after 4 hours.

◦ Provide ventilation air exchange, either natural or mechanical, as required to maintain acceptable

indoor air quality.

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