MrHeater MHRP37GL Assembly instructions
OPERATING INSTRUCTIONS
AND OWNER’S MANUAL MODEL#
MHRP37GL
WARNING: Read and follow all instructions carefully. Place instructions in a safe place for
future reference. Do not allow anyone who has not read these instructions to assemble, light,
adjust or operate the heater.
Installer: Leave this manual with the appliance. Consumer: Retain this manual for future reference.
WARNING: Improper installation, adjustment, alteration, service or maintenance can cause
property damage, injury, or death. Read and understand the installation, operating, and
maintenance instructions thoroughly before installing or servicing this equipment.
-WHAT TO DO IF YOU SMELL GAS
ǞShut off gas to the appliance.
ǞExtinguish any flame.
ǞIf odor continues, keep away from the appliance and immediately call your gas supplier or
fire department.
- This heater must be installed and serviced by trained gas installation and authorized personnel
only. Inspect the heater annually. Failure to comply could result in personal injury, asphyxiation,
death, fire, and/or property damage.
WARNING: If the information in these instructions are not followed exactly, a fire or explosion
may result causing property damage, personal injury or loss of life.
WARNING: Storage of gasoline and other flammable vapors and liquids in the vicinity of this
or any other appliance may result in fire or explosion. Do not store or use gasoline or other
flammable vapors and liquids in the vicinity of this or any other appliance. A propane cylinder
not connected for use shall not be stored in the vicinity of this or any other appliance. Maintain
all clearances to combustibles at all times.
OUTDOOR PATIO HEATER
FOR COMMERCIAL USE
00085 REV C
www.mrheater.com 800-251-0001
WARNING: For Outdoor Use Only.
Outdoor Patio Heater 2
WARNING:
YOUR SAFETY IS IMPORTANT TO YOU AND TO OTHERS,
SO PLEASE READ THESE INSTRUCTIONS BEFORE YOU
OPERATE THIS HEATER.
WARNING:
FIRE OR EXPLOSION HAZARD
WARNING:
FIRE, BURN, INHALATION, AND EXPLOSION HAZARD.
KEEP SOLID COMBUSTIBLES, SUCH AS BUILDING
MATERIALS, PAPER, OR CARDBOARD, A SAFE DISTANCE
AWAY FROM THE HEATER. AS RECOMMENDED BY
THE INSTRUCTIONS NEVER USE THE HEATER IN SPACES
WHICH DO OR MAY CONTAIN VOLATILE OR AIRBORNE
COMBUSTIBLES, OR PRODUCTS SUCH AS GASOLINE,
SOLVENTS, PAINT THINNER, DUST PARTICLES OR
UNKNOWN CHEMICALS.
LANGUAGES
ENGLISH ..........................................................1 - 20
SPANISH ....................................................... 21 - 40
FRENCH ........................................................ 41 - 60
CONTENTS
SAFETY......................................................................... 2
INTRODUCTION ............................................................ 5
HEATER INSTALLATION ................................................. 7
GAS SUPPLY INSTALLATION INSTRUCTIONS.................. 8
ELECTRICAL REQUIREMENTS........................................ 10
HEATER OPERATING INSTRUCTIONS ............................ 10
MAINTENANCE INSTRUCTIONS ................................... 12
FUEL CONVERSION INSTRUCTIONS.............................. 14
TROUBLESHOOTING GUIDE............................................15
ELECTRICAL DIAGRAM...................................................16
REPLACEMENT PARTS LIST........................................... 18
WARRANTY ................................................................ 20
WARNING:THIS PRODUCT CAN EXPOSE
YOU TO CHEMICALS INCLUDING LEAD AND LEAD
COMPOUNDS, WHICH ARE KNOWN TO THE STATE
OF CALIFORNIA TO CAUSE CANCER AND BIRTH
DEFECTS OR OTHER REPRODUCTIVE HARM. FOR MORE
INFORMATION VISIT WWW.P65WARNINGS.CA.GOV
WARNING:
GENERAL INFORMATION
RETAIN THIS MANUAL FOR FUTURE REFERENCE.
FOR QUESTIONS, PROBLEMS, MISSING PARTS BEFORE
RETURNING TO RETAILER PLEASE CALL WITH MODEL NUMBER
AND SERIAL NUMBER OF HEATER:
1-800-251-0001
MONDAY-FRIDAY 8-5 EASTERN TIME
OR E-MAIL USING THE MR. HEATER WEBSITE:
WWW.MRHEATER.COM
is
WARNING: DO NOT STORE OR USE GASOLINE
OR OTHER FLAMMABLE VAPORS AND LIQUIDS IN THE
VICINITY OF THIS OR ANY OTHER APPLIANCE.
SAFETY
Outdoor Patio Heater 3
APPLICATIONS
This is not
COMMERCIAL/INDUSTRIAL
CLEARANCES TO COMBUSTIBLES
Combustible items:
Moving objects:
Cranes
Table 3
Hazards:
WARNING: For maximum safety the building must be
evaluated for hazards before installing the heater system.
contaminated environment
the same space as the heater.
NOTICE:
STANDARDS, CERTIFICATIONS, AND
GOVERNMENT REGULATIONS
Public Garages:
Aircraft Hangars:
High Altitude:
Gas Connection:
WARNING: An approved connector, suitable for the
environment of equipment usage, is required. Visible
or excessive swaying, flexing, and vibration of the gas
connections must be avoided to prevent failure.
Neither the gas pipe nor the connector shall be placed in the
flue discharge area or in direct contact with infrared rays. In
no case shall the gas supply support or bear weight of the
heater.
heater.
Outdoor Patio Heater 4
NOTICE:
Electrical:
Ventilation:
TABLE 1 BTU Ratings, Supply Pressures, and Orifice Sizes
TABLE 2 Heater Dimensions (without brackets and smoke deflector)
MODEL BTU/HR.
RATING
Gas Supply Pressure (W.C.) Orifice Drill
Size
MIN MAX MANIFOLD
MHRP37GL 37,000 NAT.
L.P.
NAT.
L.P.
NAT.
L.P.
NAT.
L.P.
MODEL SIZE
WIDTH LENGTH HEIGHT WEIGHT
MHRP37GL
Sprinkler Heads:
SAFETY LABELS AND THEIR LOCATIONS
Outdoor Patio Heater 5
INTRODUCTION
MODEL MHRP37GL
FIGURE 1
WARNING: This heater is for outdoor or patio installation.
Not for used in residential dwellings.
WARNING: Improper installation, adjustment, alteration,
service, or maintenance can cause property damage, injury,
or death. Read and understand the installation, operating,
and maintenance instructions thoroughly before installing or
servicing this equipment.
WARNING: This heater must be installed and serviced by
trained gas installation and authorized personnel only.
Inspect the heater annually. Failure to comply could result in
personal injury, asphyxiation, death, fire, and/or property
damage.
WARNING: Do not exceed 14” W.C. (34.87 mbar) inlet
pressure to heater.
accordance with NFPA No. 88 most recent edition. Canadian
recent edition.
WARNING: A minimum clearance of 8’ above floor.
WARNING: Maintain clearances as shown on heater
nameplate.
Outdoor Patio Heater 6
Mounting Bracket Assembly
00059
00087 00088
00089 00090
00060
2x
2x
4x 2x 16x
27x
Mounting Bracket Hardware
FIGURE 2
2x 00060
1x 00059
4x 00089
4x 00090
Step 1*
FIGURE 3
NOTICE:
1x 00087
1x 00088
4x 00089
4x 00090
Step 2
FIGURE 4
Bracket.
4x 00089
Step 3
FIGURE 5
Repeat Step No. 3 to mount the second Mounting Bracket.
3x 00089
Step 4
FIGURE 6
Outdoor Patio Heater 7
WARNING: Keep any electrical supply cord away from any
heated surfaces.
WARNING: Certain materials or items, when stored under
the heater, will be subjected to radiant heat and could be
seriously damaged.
HEATER VENTILATION
4.72” (120mm) 4.72” (120mm)
13.39” (340mm)
4.33” (110mm)
Model MHRP37GL Installation Details
FIGURE 7
40º
Model MHRP37GL Mounting Position
FIGURE 8
HEATER INSTALLATION
GENERAL INSTALLATION INFORMATION AND
REQUIREMENTS
Table 3 and 4.
operation.
WARNING: ELECTRICAL GROUNDING INSTRUCTIONS: This
heater is equipped with a three-prong (grounding) plug for
your protection against shock hazard and should be plugged
directly into a properly grounded three-prong receptacle. Do
not cut or remove the grounding prong from this plug.
Outdoor Patio Heater 8
HEATER MOUNTING INSTRUCTIONS
1.
unit.
2.
3.
MOUNTING POSITIONS
Mount Bracket
FIGURE 11
AB
0
Mounting Arm (From Sidewall)
FIGURE 10
A
B0
Mounting Arm (From Ceiling)
FIGURE 9
MODEL Mounting
Angle
Bracket
Combination MINIMUM CLEARANCES TO COMBUSTIBLE SURFACES
TOP SIDES BACK* BELOW
MHRP37GL A-1
MHRP37GL B-3
MODEL Mounting
Angle
Bracket
Combination MINIMUM CLEARANCES TO COMBUSTIBLE SURFACES
TOP SIDES BACK* BELOW
MHRP37GL B-2
MHRP37GL B-1
TABLE 3 Mounting to a Wall (*Achieved by bracket length)
TABLE 4 Mounting to a Ceiling (*Achieved by bracket length)
Outdoor Patio Heater
GAS SUPPLY INSTALLATION
INSTRUCTIONS
CONNECTING HEATER TO GAS SUPPLY
WARNING: Depending on local codes and requirements and
the installer’s skill level, the sizing and installation of gas
lines required to safely and efficiently supply the heater may
require the assistance of a professional. If in doubt as to
these requirements, discuss the requirements of this manual
with the dealer from whom the heater was purchased and
your gas supplier.
Locate the hose out of pathways where people may trip
over it or out of areas where the hose may be subject to
accidental damage.
Gas Supply Requirements
WARNING: These patio heaters burn natural gas or liquefied
petroleum (propane) gas and they come equipped with
a regulator. The regulator is built into the gas valve. The
maximum inlet pressure to this regulator is 14 in. W.C.. If
gas line pressure exceeds 14 in. W.C., then an additional
regulator must be installed before the heater/regulator to
step down the pressure to a maximum of 14 in. W.C..
Piping Requirements
Piping Installation
WARNING: The gas hose must be positioned in such a
way that it does not trip people or create other accidental
damages.
Gas Connection 1/2”
Inlet pressure - unscrew
this screw to measure
pressure of the gas line.
Manifold pressure - Unscrew
this screw before operation
then measure only when the
burner is ON
Measure pressure regulation - Remove the cap with a slotted
screwdriver: turn clockwise to increase pressure; turn count-
er-clockwise to decrease pressure.
Unit Gas Connection
FIGURE 12
a.
WARNING: Failure to ensure that male threads on pipe to be
installed into gas valve meet the requirements may cause
gas valve damage, distortion and malfunction.
c.
d.
WARNING: When testing gas piping use only a soap and
water solution. Do not use a match or other flame for leak
testing. If during leakage check gas is smelled, turn off the
gas supply and ventilate building.
e.
connections.
Outdoor Patio Heater 10
TABLE 5: Natural Gas Heating Values at Altitude
TABLE 6: Propane Gas Heating Values at Altitude
Model
Altitude 0-2000 ft. (0-610m) Altitude 2000-3000 ft. (610-910mm)
Manifold Pressure Input Rating Manifold Pressure Input Rating
[“ W.C.] [kPa] [BTU/Hr] [W] [“ W.C.] [kPa] [BTU/Hr] [W]
MHRP37GL 6.4 1. 6 37,000 10,844 1.47 35,520 10,410
Model
Altitude 0-2000 ft. (0-610m) Altitude 2000-3000 ft. (610-910mm)
Manifold Pressure Input Rating Manifold Pressure Input Rating
[“ W.C.] [kPa] [BTU/Hr] [W] [“ W.C.] [kPa] [BTU/Hr] [W]
MHRP37GL 7. 5 1.87 37,000 10,844 1.72 35,520 10,410
Model
Altitude 3000-4000 ft. (910-1220m) Altitude 4000-4500 ft. (1220-1350mm)
Manifold Pressure Input Rating Manifold Pressure Input Rating
[“ W.C.] [kPa] [BTU/Hr] [W] [“ W.C.] [kPa] [BTU/Hr] [W]
MHRP37GL 5.42 1.35 34,040 5.18 1.30 33,300
Model
Altitude 3000-4000 ft. (910-1220m) Altitude 4000-4500 ft. (1220-1350mm)
Manifold Pressure Input Rating Manifold Pressure Input Rating
[“ W.C.] [kPa] [BTU/Hr] [W] [“ W.C.] [kPa] [BTU/Hr] [W]
MHRP37GL 6.35 1.58 34,040 6.08 1. 51 33,300
This appliance was converted on ______ (day-month-year)
for operation at ____ ft.(___m) altitude by ____________
(name and address of the organization making this conver-
sion) which accepts the responsiblity that this conversion
has been properly made.
Manifold pressure adjustment____W.C. Input rating____
Btu/hr
HIGH ALTITUDE OPERATION
Outdoor Patio Heater 11
ELECTRICAL REQUIREMENTS
NOTICE:
Electrical Connection
FIGURE 13
ON RF
Switch RF/ON
Line Voltage 120 Vac 60 Hz
ROOM THERMOSTAT
1.
2.
3.
4.
room thermostat.
HEATER OPERATING INSTRUCTIONS
OPERATING SAFETY INSTRUCTIONS
WARNING: When used without fresh air, heater may give off
carbon monoxide, an odorless poisonous gas. Open window
an inch or two for fresh air when using heater.
If heater shuts off, do not relight until you provide fresh air.
open door for 5 minutes. If heater keeps shutting off, have it
serviced. Keep burner and control clean.
Carbon monoxide poisoning may lead to death. Early
signs of carbon monoxide poisoning resemble the flu with
headache, dizziness and/or nausea. If you have these signs,
heater may not be working properly. get fresh air at once!
Have heater serviced.
Do not use match or other flame for leak testing.
CAUTION: If the infra-red color of the grid becomes dull
when the building furnace is operating, consult gas supplier
on correct gas supply piping sizes.
This heater is for outdoor or patio installation. Not for used
in residential dwellings.
NOTICE:
Before Each Use
HEATER STARTUP
WARNING: During heater startup ensure that building is well
ventilated.
1.
2.
3. Set the switch to ON.
4.
5. To shutdown the unit, set the switch to OFF.
NOTICE:to
NOTICE:
HEATER SHUTDOWN
Outdoor Patio Heater 12
Start-Up Sequence
Start-Up Flame Failure Sequence
Flame Lost Sequence
FIGURE 14
FIGURE 15
FIGURE 16
Call for heat
Call for heat
Call for heat
Outdoor Patio Heater 13
MAINTENANCE INSTRUCTIONS
SERVICING GUIDE
WARNING: Before doing all the operations below, it is
necessary to close the manual main shut-off gas valve and to
remove plug from the socket.
Ceramic Tiles
1.
See Figure 17.
Remove 4 screws
and side panel Remove top panel
and 4 screws
Side Cover Removal
FIGURE 17
2.
Figure 18, without removing them.
Remove the
glass
Remove the 4 small
screws (2 in figure, 2
behind)
Loosen the 6 screws (3 in
figure, 3 behind) without
removing them
Electrode Cleaning
FIGURE 18
3.
4.
5.
Venturi Tube/ Orifice
1.
2.
3.
Removal of Valve
Remove 3 screws
to replace valve or
perform internal
cleaning with
compressed air
Remove screw to remove
the connector
FIGURE 19
4.
5.
Burner Cleaning
FIGURE 20
Blow here with compressed
air to clean burner
6.
Outdoor Patio Heater 14
Electrode Control
NOTICE:
1.
2.
Figure 18.
3.
Access to Electrical Panel
FIGURE 21
Remove screws and
remove electric panel
taking care not to tear
cables
Electrode cable outlet
Remove these 2 screws to
remove electrical panel
4.
FIGURE 22
Electrode cable outlet
Remove cable on PIN
S1 from control board
Remove cable on PIN
HV from control board
Pass electrode cables
through this hole
Remove 2 screws and washers
to remove electrode
Electrode Replacement
WARNING: At the end of any maintenance procedure,
testing gas piping using only a soap and a water solution.
Do not use a match or other flame for leak testing. If during
leakage check gas is smelled, turn off the gas supply and
ventilate the building.
MAINTENANCE INTERVALS
Intermittent use:
Dusty, wet or corrosive environment: Since these environments can
NOTICE:
Outdoor Patio Heater 15
Orifice Change
FUEL CONVERSION INSTRUCTIONS
Change orifice to convert
from NG to propane
FIGURE 23 FIGURE 24
1.
to Figure 17.
2.
3.
4.
5.
6. Make the gas connection as indicated in the GAS SUPPLY
INSTALLATION INSTRUCTIONS section.
7.
8.
WARNING: Before doing all the operations below, it is
necessary to close the manual main shut-off gas valve and to
remove plug from the socket.
Outdoor Patio Heater 16
Symptom Possible Cause Corrective Action
1.
2.
3.
4.
1. Check pressure.
2.
3.
4.
1.
2. Low gas pressure.
3.
4.
5. Incorrect gas.
1.
2.
3.
4.
5.
1.
2.
3.
4.
5.
6.
7. Incorrect gas.
1.
2.
3.
4.
5.
6.
7.
Gas odor 1. Loose pipe connection.
2.
tap.
1.
2.
and out pressure tap.
1.
2. Low gas pressure.
3.
1.
2.
3.
1.
2.
3.
4. Loose or open wire connection.
5.
6.
7.
1.
2.
open.
3.
4.
5.
earth ground.
6. Interrupt power source and attempt to
restart.
7.
10 seconds
1.
2.
3. Low gas pressure.
4.
5.
6.
1.
earth ground.
2. Correct wiring.
3.
4.
5.
6.
Spark is present. No main
1.
2.
3.
1.
2.
3.
TROUBLESHOOTING GUIDE
# Of Flashes LED DIAGNOSTIC CODES
AT ON
2 FLASHES
3 FLASHES Ignition Lockout
4 FLASHES
TABLE 7 Diagnostic Control Board
Outdoor Patio Heater 17
Electrical Diagram
FIGURE 25
Outdoor Patio Heater 18
REPLACEMENT PARTS LIST FOR MODEL MHRP37GL
Outdoor Patio Heater
REF # Description Part# QTY
1 CERAMIC TILE ASSEMBLY 00054 1
2 GAS VALVE 00065 1
3 PCB-TRANSFORMER 00086 1
4 00067 1
5 COMPLETE UPPER BRACKET 00068 1
6 SUPERIOR DEFLECTOR 1
7 VALVE SIDE DIVIDER 00070 1
8 ELECTRODE BRACKET 00072 1
UPPER COVER 00073 2
10 SIDE COVER 00074 2
11 UPPER VALVE CLOSURE 00075 1
12 GAS VALVE CONNECTOR 1
13 ELECTRODE 00080 1
14 INTERNAL DEFLECTOR 00081 1
15 GLASS 00082 1
16 GLASS STOPPER 00083 2
* CONVERSION KIT 00053 1
* INSTALLATION INSTRUCTION LABELS 1
REPLACEMENT PARTS LIST FOR MODEL MHRP37GL
SEE BACK PAGE FOR PARTS ORDERING INFORMATION
* NOT SHOWN
Outdoor Patio Heater 20
OPERATING INSTRUCTIONS
AND OWNER’S MANUAL
MODEL#
MHRP37GL
READ INSTRUCTIONS CAREFULLY: YOUR SAFETY IS IMPORTANT TO YOU AND TO OTHERS.
WARNING:
CAUSE INJURY OR DEATH. REPLACEMENT PARTS ARE ONLY AVAILABLE DIRECT FROM THE
FACTORY AND MUST BE INSTALLED BY A QUALIFIED SERVICE AGENCY.
PARTS ORDERING INFORMATION:
PURCHASING: ACCESSORIES MAY BE PURCHASED AT ANY MR. HEATER LOCAL DEALER OR
DIRECT FROM THE FACTORY
FOR INFORMATION REGARDING SERVICE:
-
cation.
LIMITED WARRANTY:
-
-
-
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