Table of Contents
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Safety ........................................................ 3
Specifications ............................................ 4
Qualified Installing Agency ........................ 5
Product Features ....................................... 5
Local Codes............................................... 5
Air For Combustion and Ventilation ........... 6
Product Identification ................................. 6
Unpacking.................................................. 6
Unvented Room Heaters ..................... 6
Installation ................................................. 8
INSTALLER: Leave this manual with the appliance.
CONSUMER: Retain this manual for future reference.
This is an unvented gas-fired heater. It uses air (oxygen)
from the room in which it is installed. Provisions for ad-
equate combustion and ventilation air must be provided.
Refer to Air For Combustion and Ventilation section on
page 6 of this manual.
WARNING: Improper installation, adjustment, al-
teration, service or maintenance can cause injury or
property damage. Refer to this manual for correct in-
stallation and operational procedures. For assistance
or additional information consult a qualified installer,
service agency or the gas supplier.
This appliance may be installed in an aftermarket,* per-
manently located, manufactured (mobile) home, where
not prohibited by local codes.
This appliance is only for use with propane or natural
gas. Field conversion by any other means including the
use of a kit is not permitted.
* Aftermarket: Completion of sale, not for purpose of resale, from the manufacturer.
PROCOM HEATING, INC. PATENT INFORMATION
This product may be covered by one or more of the following United States patents:
8,915,239 8,851,065 8,764,436 8,757,202 8,757,139 8,752,541 8,568,136
8,545,216 8,517,718 8,516,878 8,506,290 8,465,277 8,317,511 8,297,968
8,281,781 8,241,034 8,235,708 8,152,515 8,011,920 7,967,006 7,967,007
7,654,820 7,730,765 7,677,236 7,607,426 7,434,447
2
TABLE OF CONTENTS
Operation ................................................. 16
Inspecting Heater .................................... 18
Care And Maintenance ............................ 19
Troubleshooting ....................................... 20
Service Hints ........................................... 24
Technical Service..................................... 24
Replacement Parts .................................. 25
Accessories ............................................. 25
Parts ........................................................ 26
Warranty .................................................. 32
SAVE THIS BOOK
www.usaprocom.com
200233-01B
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Need help?
Do you have a question about the MNSD300HGA and is the answer not in the manual?
Questions and answers
I cant get the pilot light to light I followed the instructions correctly ??
To troubleshoot the pilot light issue on a Procom MNSD300HGA:
1. Check Gas Supply – Ensure the equipment shutoff valve is fully open.
2. Follow Lighting Instructions – Turn the control knob to OFF, wait five minutes, then try lighting the pilot again by pressing the ignitor button.
3. Manual Lighting – If the ignitor does not work, light the pilot with a match following the Manual Lighting Procedure (page 18).
4. Hold Control Knob – After lighting, keep the control knob pressed for 30 seconds.
5. Check Gas Pressure – If the pilot does not stay lit, gas pressure may be too low. Contact your gas supplier.
6. Consult Troubleshooting Guide – Refer to pages 20-24 for additional troubleshooting steps.
7. Seek Professional Help – If the issue persists, contact a qualified service technician or gas supplier for repairs.
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