WARNING: This appliance requires a 3/8” NPT (National Pipe Thread) inlet connection to the pressure regulator. Use of floor mounting feet will require you to use a 3/8 NPT street elbow to make gas connection.

CAUTION: Never connect heater directly to the Propane supply. This heater requires an external regulator (not supplied). Install the external regulator between the heater and Propane/LP supply.

The installer must supply an external regulator. The external regulator will reduce the incoming gas pressure to between 11 and 14 inches of water. If you do not reduce incoming gas pressure heater regulator damage could occur. Install external regulator with the vent pointing down as shown in Figure 12. Pointing the vent down protects it from freezing rain or sleet.

CAUTION: Use only new black iron or steel pipe. Internally-tinned copper tubing may be used in certain areas. Check your local codes. Use pipe of larger enough diameter to allow proper gas volume to heater. If pipe is too small, undue loss of pressure will occur.

Installation must include an equipment shutoff valve, union and plugged 1/8” NPT tap. Locate NPT tap within reach of test gauge hookup. NPT tap must be upstream from heater (see figure 12).

Install sediment trap in supply line as shown in figure

12.Locate sediment trap where it is within reach for cleaning. A sediment trap traps moisture and contami- nants. This keeps them from going into heater. If sediment trap is not installed or is installed improperly, heater may not run correctly.

IMPORTANT: Hold pressure regulator with wrench when connecting it to gas piping and/or fittings.

CHECKING GAS CONNECTIONS

WARNING: Test all gas piping and connections for leaks after installing or servicing. Correct all leaks at once.

WARNING: Never use an open flame to check for a gas leak. Apply a mixture of liquid soap and water to all joints. Bubbles forming show a leak. Correct all leaks at once.

PRESSURE TESTING GAS SUPPLY PIPING SYSTEM

Test pressure in Excess of ½ psig (3.5kPa)

1.

Disconnect appliance with its appliance main

 

gas valve (control valve) and equipment shutoff

 

valve from gas supply piping system. Pres-

 

sures in excess of ½ psig will damage heater

 

regulator.

2.

Cap off open end of gas pipe where equipment

 

shutoff valve was connected.

3/8” NPT Pipe Nipple

Ground Joint Union

Equipment

Shutoff Valve

From Gas Meter (4” W.C. to 10.5” W.C. Pressure)

3” Minimum

Pressure

Regulator

Heater

Cabinet

Test Gauge

Connection

Tee Joint

Reducer Bushing to 1/8” NPT

1/8” NPT Plug Tap

Tee Joint

Pipe Nipple Sediment

Trap

Cap

3.

Pressurize supply piping system by either using

 

compressed air or opening main gas valve on

 

or near gas meter.

4.

Check all connections and joints in gas supply

 

piping system. Apply mixture of liquid soap and

 

water to gas joints. Bubbles forming show a

 

leak.

5.

Correct all leaks at once.

6.

Depressurize and relieve pressure in supply

 

piping system.

7.

Reconnect heater and equipment shutoff valve

 

to gas supply.

8.

Reconnected fittings must be checked for leaks

 

in next section.

Figure 12

*A CSA/AGA certified equipment shutoff valve with 1/8” NPT tap is an acceptable alternative to test gauge connection. Purchase the CSA/AGA certified equip- ment shutoff valve from your dealer. See Accessories, page 17.

IMPORTANT: Install an equipment shutoff valve in an accessible location. The equipment shutoff valve is for turning on or shutting off the gas to the appliance.

Apply pipe joint sealant lightly to male threads. This will prevent excess sealant from going into pipe. Excess sealant in pipe could result in clogged heater fuel train.

CAUTION: Use pipe joint sealant that is resistant to LP-Gas.

Test Pressure Equal To or Less Than ½ psig (3.5 kPa)

1.Close equipment shutoff valve (see figure 13).

2.Pressurize supply piping system by either using compressed air or opening propne/LP supply valve.

3.Check all joints from the propane/LP supply valve to equipment shutoff valve (see figure 14). Apply mixture of liquid soap and water to gas joints. Bubbles forming show a leak.

4.Correct all leaks at once.

5.Depressurize and relieve pressure from supply piping system.

8 Installation instructions and Owner’s Manual 70575 Rev. C 8/05

Page 8
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Enerco TSBF30LPT, TSBF10LP, MHIR20LPT, MHIR30LPT, MHBF10LP, MHIR10LP, MHBF30LPT Test pressure in Excess of ½ psig 3.5kPa

MHBF20LPT, TSIR10LP, MHIR30LPT, MHIR20LPT, TSBF20LPT specifications

The Enerco MHBF10LP, TSBF10LP, HSBF10LP, HSBF20LPT, and TSBF20LPT are innovative heating solutions designed for both commercial and residential applications. These units are highly efficient gas-fired heaters offering versatile heating capabilities, ensuring user comfort in various settings.

The MHBF10LP is a liquid propane heater featuring a powerful output of 10,000 BTU. It operates with a direct ignition system, allowing for quick and reliable startups. Its compact design makes it suitable for smaller spaces, while the adjustable heat settings empower users to customize their warmth. The MHBF10LP boasts a safety shut-off system which enhances the overall safety of the unit.

In contrast, the TSBF10LP is engineered for portability, offering the same 10,000 BTU output but with added mobility features. It comes with a built-in carrying handle and lightweight design, making it easy to transport from one location to another. Perfect for job sites or outdoor events, it features a sturdy construction that withstands demanding environments and a direct ignition system for ease of use.

The HSBF10LP, another variant in this range, offers high-efficiency heating in a small footprint. This model stands out with its integrated fan that aids in even heat distribution. Users can quickly warm up spaces without the long wait times. Additionally, it provides options for permanent installation, making it an adaptable choice for various applications.

The HSBF20LPT and TSBF20LPT models deliver enhanced power with a heating capacity of 20,000 BTU. The HSBF20LPT focuses on high efficiency and user convenience, featuring an automatic thermostat control to maintain desired temperatures without constant adjustment. Its robust design is perfect for larger areas, ensuring consistent warmth and comfort.

On the other hand, the TSBF20LPT is portable like its 10,000 BTU counterpart but with double the capacity. Its rugged construction and portability make it ideal for both indoor and outdoor use. The unit's reliability in diverse conditions is coupled with an ease of operation, providing warmth where it's most needed.

All models in this Enerco range prioritize user safety and efficiency. Featuring built-in safety mechanisms such as flame failure protection and tip-over shut-off systems, each heater ensures safe operation. Furthermore, the robust construction and high-quality materials used in these devices promise durability, making them a worthwhile investment for long-term heating needs.

Overall, Enerco's MHBF and TSBF series heaters represent a blend of modern technology, safety features, and user-friendly designs, tailored for a variety of heating applications.