Mr. Heater MHVFB10LP Placing Heater on Mounting Bracket, Installing Bottom Mounting Screws

Placing Heater on Mounting Bracket

1.Locate two horizontal slots on back pane of heater (see figure 19).

2.Place heater onto mounting bracket. Slide hori- zontal slots onto stand-out tabs on mounting bracket.

Horizontal Slots

Mounting Bracket mounted to wall

Mounting Screws

Figure 9

Installing Bottom Mounting Screws

WARNING: This appliance requires a 3/8” NPT (National Pipe Thread) inlet connection to the pres- sure regulator.

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 ex- ternal 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 dam- age 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 up- stream from heater (see figure 12).

1.	Locate two bottom mounting screw holes.
	These holes are near bottom on back panel of
	heater (see figure 9).
2.	Mark screws locations on wall.
3.	Remove heater from mounting bracket.
4.	If installing bottom mounting screw into hol-
	low or solid wall, install wall anchors. Follow
	steps 1 through 4 under Attaching to Wall using
	Anchor. If installing bottom mounting screw into
	wall stud, drill holes at marked locations using
	9/64” drill bit.
5.	Re-place heater onto mounting bracket.
6.	Place spacers between bottom mounting holes
	and wall anchor or drilled hole.
7.	Hold spacer in place with one hand. With the
	other hand, insert mounting screw through

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

bottom mounting hole and spacer. Place tip of

screw in opening of wall anchor or drilled hole.

8. Tighten both screws until heater is firmly se-

cured to wall. Do not over tighten.

Note: Do not re-place front panel at this time. Re- place front panel after making gas connections and checking for leaks.

CONNECTING TO GAS SUPPLY FOR PERMANENT INSTALLATION

WARNING: A qualified service person must con- nect heater to gas supply. Follow all local codes.­

Figure 12

*A CSA/AGA certified equipment shutoff valve with 1/8” NPT tap is an acceptable alternative to test gauge con- nection. Purchase the CSA/AGA certified equipment 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.­

Install sediment trap in supply line as shown in figure 12. Locate sediment trap where it is within reach for

Unvented LP-Gas Fired Buddy Wall-Mount Heater 7 Installation Instructions and Owner’s Manual