Heat & Glo ATS-AU-D User manual

1Heat & Glo • ATS-AU-D • 327-900 Rev. F • 6/09
MODEL: ATS-AU-D
AUSTRALIAN GAS ASSOCIATION APPROVED
AGA Approval Number 5543
INSTALLATION AND OPERATION INSTRUCTIONS
This product may be covered by one or more of the following patents: (United States) 4593510, 4686807, 4766876, 4793322, 4811534, 5000162, 5016609, 5076254, 5113843,
5191877, 5218953, 5263471, 5328356, 5341794, 5347983, 5429495, 5452708, 5542407, 5601073, 5613487, 5647340, 5688568, 5762062, 5775408, 5890485, 5931661, 5941237,
5947112, 5996575, 6006743, 6019099, 6048195, 6053165, 6145502, 6170481, 6237588, 6296474, 6374822, 6413079, 6439226, 6484712, 6543698, 6550687, 6601579, 6672860,
6688302B2, 6715724B2, 6729551, 6736133, 6748940, 6748942, 6769426, 6774802, 6796302, 6840261, 6848441, 6863064, 6866205, 6869278, 6875012, 6880275, 6908039,
6919884, D320652, D445174, D462436; (Canada) 1297749, 2195264, 2225408, 2313972; (Australia) 780250, 780403, 1418504 or other U.S. and foreign patents pending.
WARNING
This appliance has been supplied with an integral barrier to prevent direct contact with the
fixed glass panel. DO NOT operate the appliance with the barrier removed.
HOT SURFACES!
Glass and other surfaces are hot during operation AND cool down.
Hot glass will cause burns.
•DO NOT touch glass until it is cooled
• NEVER allow children to touch glass
• Keep children away
• CAREFULLY SUPERVISE children in same room as fi replace.
• Alert children and adults to hazards of high temperatures.
High temperatures may ignite clothing or other flammable materials.
• Keep clothing, furniture, draperies and other fl ammable materials away.
THIS MANUAL MUST BE USED FOR INSTALLATION AND RETAINED
BY HOMEOWNER FOR OPERATION AND MAINTENANCE.
HEAT & GLO, a brand of Hearth & Home Technologies Inc.
7571 215th Street West, Lakeville, MN 55044, USA, www.heatnglo.com
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2 Heat & Glo • ATS-AU-D • 327-900 Rev. F • 6/09
IMPORTANT: Read all instructions carefully before starting installation. Failure to follow these installa-
tion instructions may result in a possible fi re hazard and will void the warranty.
INSTALLATION AND OPERATION INSTRUCTIONS
PLEASE READ THIS MANUAL BEFORE INSTALLING AND USING THIS
APPLIANCE.
MODEL ATS-AU-D IS AUSTRALIAN GAS ASSOCIATION APPROVED FOR
NATURAL GAS OR PROPANE AS A BALANCED FLUE HEATER.
Refer to the appliance data plates for gas consumptions and pressures.
Installation of this appliance should only be carried out by an authorized person
in accordance with the manufacturers instructions. All relevant codes and regu-
lations laid down by the gas piping authorities, municipal building regulations,
electrical wiring regulations and the requirements of the AGA Gas Installation
Code must be observed.
This appliance and its components are tested and safe when installed in accor-
dance with this Installation Manual. Report to your dealer any parts damaged
in shipment, specifically check glass condition. The gas logs and flue system
components are in separate packages. Read all instructions before starting
installation and follow these instructions carefully during installation to ensure
maximum benefit and safety. Failure to follow them will void your warranty and
may present a fire hazard.
The Heat & Glo, a brand of Hearth Technologies, Inc. warranty will be voided by,
and Heat & Glo disclaims any responsibility for the following actions:
• Installation of any damaged heater or flue system component
• Modification of the heater or balanced flue system Installation other than as
instructed by Heat & Glo
• Improper positioning of the gas logs or the glass door
• Installation and/or use of any component part not manufactured or approved
by Heat & Glo, not withstanding any independent testing laboratory or other
party approval of such component part or accessory.
Heat & Glo, a brand of Hearth & Home Technologies, Inc.
7571 215th Street West, Lakeville, MN 55044
Copyright 2009 • Printed in U.S.A.
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3Heat & Glo • ATS-AU-D • 327-900 Rev. F • 6/09
TABLE OF CONTENTS
1.0 Installation Instructions ..................................................................................... 8
1.1 Introduction ................................................................................................ 8
1.2 Flue System .............................................................................................. 8
1.2.1 Flue System Approvals .................................................................... 8
1.2.2 Connecting the Flue Pipe ................................................................ 9
1.3 Connecting the Gas Supply ....................................................................... 9
1.4 Fan .......................................................................................................... 10
1.5 Surround Installation ................................................................................ 10
1.6 Finishing .................................................................................................. 14
1.7 Log Installation ........................................................................................ 14
1.8 Installer Testing ....................................................................................... 14
2.0 Operating Instructions .................................................................................... 15
2.1 Safety and Lighting Information ............................................................... 16
2.2 Safety Information ................................................................................... 16
2.3 Lighting Instructions ................................................................................. 17
2.4 Fan Operation .......................................................................................... 18
3.0 Servicing and Maintenance ............................................................................ 18
3.1 Removal of Covers for Servicing ............................................................. 19
3.2 Removal of Components for Service ....................................................... 19
3.3 Parts Replacement .................................................................................. 19
3.4 Adjustments and Replacement Parts ...................................................... 19
3.5 Troubleshooting ....................................................................................... 20
4.0 Replacement Parts ......................................................................................... 22
Limited Lifetime Warranty ............................................................................... 25
Î = Contains updated information.

4 Heat & Glo • ATS-AU-D • 327-900 Rev. F • 6/09
FIGURE 1
SURROUND
DRESS
GUARD
GLASS
ASSEMBLY
LOWER
GRILLE
GAS
CONTROL
VALVE
DATA BADGE
& LABELS
GAS LINE
ACCESS
ELECTRICAL
JUNCTION BOX
ACCESS
INLET FLUE
COLLAR
EXHAUST FLUE
COLLAR
LOW VOLTAGE
WIRES
ON/OFF
SWITCH

5Heat & Glo • ATS-AU-D • 327-900 Rev. F • 6/09
FIGURE 2
MINIMUM FIREPLACE OPENING
WIDTH: 32-1/8" (816 mm)
DEPTH: 13-1/2" (343 mm)
HEIGHT: 20-1/2" (521 mm)
NOTE: If exhaust collar on insert and fi replace
damper do not line up, add 4 inches (102 mm) to
minimum fi replace opening height to accommodate
bends in vent pipe.
383 mm
256 mm
387 mm
512 mm
731 mm
336 mm
835 mm
24 mm
514 mm
227 mm
64 mm
351 mm
55 mm
58 mm
65 mm
154 mm
835 mm
697 mm
302 mm
575 mm
151 mm
544 mm
808 mm
GAS LINE
ACCESS ELECTRICAL
ACCESS
343 mm
816 mm
521 mm
TOP VIEW
MASONRY OF FACTORY-BUILT FIREPLACE

6 Heat & Glo • ATS-AU-D • 327-900 Rev. F • 6/09
WARNING: THE EXHAUST PIPE MUST
ONLY BE CONNECTED TO THE EX-
HAUST STARTING COLLAR OF THE
UNIT AND THE CENTER COLLAR OF
THE TERMINATION CAP.
THE INLET AIR PIPE MUST ONLY BE
CONNECTED TO THE INLET AIR COL-
LAR OF THE UNIT AND ATTACHED
TO THE INLET AIR COLLAR OF THE
TERMINATION CAP.
MODEL FLUE TERMINATION APPROVAL
ATS-AU-D LINK-DV30B VERTICAL TERMINATION CAP
TABLE 1
FIGURE 3
TERMINATION CAP
EXHAUST
AIR FLUE PIPE
V = 3.0 m (10 FT.) MINIMUM
10 m (40 FT.) MAXIMUM
INLET AIR
FLUE PIPE

7Heat & Glo • ATS-AU-D • 327-900 Rev. F • 6/09
FIGURE 4
EXHAUST
STARTING
COLLAR
INLET AIR
STARTING
COLLAR
EXHAUST
COLLAR
INLET AIR
COLLAR
TERMINATION CAP

8 Heat & Glo • ATS-AU-D • 327-900 Rev. F • 6/09
WARNING: THIS GAS FIREPLACE AND FLUE
ASSEMBLY MUST BE FLUED DIRECTLY TO THE
OUTSIDE AND MUST NEVER BE ATTACHED TO
A CHIMNEY SERVING A SEPARATE SOLID FUEL
BURNING APPLIANCE. EACH GAS APPLIANCE
MUST USE A SEPARATE FLUE SYSTEM.
CAUTION: Prior to connecting the flue system to
the unit, read sections:
1.3 Connecting the Gas Supply
1.4 Fan
1.2 FLUE SYSTEM
1.2.1 FLUE SYSTEM APPROVALS
Table 1 and Figures 3-5 show the fl ue termination
caps and systems approved for use with this model.
Approved fl ue system terminations are labeled for
identifi cation. 3.3 inch (84mm) diameter listed fl exible
aluminum or stainless steel gas fl ue is used for both
the incoming combustion air and exhaust fl ue pipes.
NO OTHER FLUEING SYSTEMS OR COMPONENTS
MAY BE USED. Detailed installation instructions are
included with each fl ue termination kit and should be
used in conjunction with this manual.
HORIZONTAL FLUEING
The fl ue system on this model CANNOT be terminated
horizontally.
VERTICAL FLUEING
The fl ue pipes MUST be connected to the proper col-
lars on the unit AND the exhaust fl ue pipe MUST be
connected to the termination cap or the unit will not
operate. The combustion air fl ue pipe MUST be con-
nected to the termination cap.
NOTE: The minimum vertical rise (exhaust fl ue) is
10 feet (3M) and the maximum vertical rise is 40 feet
(10M). These dimensions are measured from the start-
ing collars of the unit to the end of the last section of
fl ue pipe (See dimension V in Figure 3).
A vertical fl ue termination system installed on this
model will include one (1) length of 3.3 inch (84 mm)
fl exible fl ue pipe for the combustion air, one (1) length
of 3.3 inch (84 mm) fl exible fl ue pipe for the exhaust,
one (1) LINK-DV30B Vertical Termination Kit.
1.0 INSTALLATION INSTRUCTIONS
1.1 INTRODUCTION
This model is designed to operate with all combustion
air being siphoned from the outside of the building and
all exhaust gases expelled to the outside of the build-
ing. This model is designed to be installed in a masonry
fi replace or factory built fi replace. These units CAN-
NOT be recessed inside combustible construction.
Minimum dimensions of the masonry or factory-built
fi replace into which these models can be installed, are
32 1/8-inches (816 mm) width x 13 1/2 -inches (343
mm) depth x 20 1/2 inches (521 mm) height.
WARNING: THIS UNIT IS NOT FOR USE WITH
SOLID FUEL.
This unit MUST use the fl ue termination described in
the fl ueing section of the manual.
The control system for this model is a millivolt type.
It consists of a gas control valve/variable regulator, a
standing pilot/thermopile/thermocouple, a piezo ignitor,
and an ON/OFF switch. The controls are located be-
hind the lower grille. Access to the controls is gained
by rotating the grille up. ON/OFF switch is located on
the front surround. See Figures 1 and 7.
Minimum inlet gas supply pressure for purpose of input
adjustment is 4.5 inches w.c. (1.13 kPa) for natural gas
and 11 inches w.c. (2.75 kPa) for propane. Manifold
(outlet) pressures should be set at 3.2 inches w.c. (.80
kPa) for natural gas models and 9.6 inches w.c. (2.40
kPa) for propane models.
In planning the installation for the insert it is neces-
sary to determine where the unit is to be installed, and
whether optional accessories (wall switch, thermostat,
or remote control) are desired. Gas supply piping
should also be planned. Model ATS-AU-D has a fac-
tory installed fan.
This model is designed to be installed in a masonry or
factory-built fi replace. The separate 3.3 inch (84 mm)
combustion air and exhaust pipes must be run up
through the chimney and terminated vertically. Hori-
zontal fl ue terminations MUST NOT be done.
Before starting installation of fl ue kits, the installer
should read the Gas Fireplace Instructions and the Flue
Kit Instructions to ensure that a proper fl ue installation
is completed.
Consult your local Building Codes before beginning
the installation.

9Heat & Glo • ATS-AU-D • 327-900 Rev. F • 6/09
1.2.2 CONNECTING THE FLUE PIPE
NOTE:The damper of the masonry or factory-built
chimney may have to be removed to allow instal-
lation of the flexible-flue pipe.
Install the 3.3 inch (84mm) fl exible fl ue pipes down
through the chimney. Slide the starting collar bracket
towards the back of the unit. See Figure 4. Attach and
secure the bottom ends of the fl ex pipes to the starting
collar bracket with 3 plated sheetmetal screws on each
collar. Slide the gas insert into place, and position any
excess fl ex fl ue pipe back up into the chimney. Use the
handle to slide the starting collar plate forward. Hold
the collar bracket from sliding backwards by inserting a
screw through the unit front and into the collar plate.
Attach the pipe-to-cap adaptor to the termination cap
and to the top of the fl exible fl ue pipe and set the cap in
place at the top of the chimney. See Figures 3 and 4.
CAUTION: To avoid downdrafts and/or cold air
problems, it is recommended to seal off the area
between the termination cap and the top of the
solid-fuel chimney opening into which the flue cap
has been installed.
WARNING: A 12-inch (305 mm) minimum chim-
ney and/or flue height above the roof top is neces-
sary in the interest of safety. See Figure 5.
NOTE:THIS ALSO PERTAINS TO VERTICAL FLUE
SYSTEMS INSTALLED ON THE OUTSIDE OF THE
BUILDING.
1.3 CONNECTING THE GAS SUPPLY
The gas is introduced to the appliance on the left hand
side. See Figure 6. After the gas pipe installation is
complete, check all gas connections carefully for
leaks with a soap solution. DO NOT USE AN OPEN
FLAME.
NOTE: THE GAS SUPPLY LINE SHOULD BE
PURGED OF ANY TRAPPED AIR PRIOR TO THE
FIRST FIRING OF THE UNIT.
FIGURE 6
FIGURE 5 specifi es minimum fl ue heights for various
pitched roofs.
610 mm VERTICAL
WALL
TERMINATION
CAP
LOWEST
DISCHARGE
OPENING
H (MIN.) - MINIMUM HEIGHT FROM ROOF
TO LOWEST DISCHARGE OPENING
GAS CONTROL
VALVE
GAS LINE
ACCESS
Figure 5 Minimum Height from Roof to Lowest
Discharge Opening
Angle H (Min.) M
0°-26.6° ........................................................0.30*
26.6°-30.3° ........................................................0.38*
30.3°-33.7° ........................................................0.46*
33.7°-36.9° ........................................................0.61*
36.9°-39.8° ........................................................0.76
39.8°-42.5° ........................................................0.99
42.5°-45.0° ........................................................1.22
45.0°-49.4° ........................................................1.52
49.4°-53.1° ........................................................1.83
53.1°-56.3° ........................................................2.13
56.3°-59.0° ........................................................2.29
59.0°-60.3° ........................................................2.44
*.91 M minimum in snow regions

10 Heat & Glo • ATS-AU-D • 327-900 Rev. F • 6/09
FIGURE 7
3. Run the low voltage lead wires up the back of the
right side of the surround and secure them with
the three wire ties found there. Reconnect the low
voltage wires to the short wires of the ON/OFF
switch.
4. Remove and retain the four surround attachment
screws at the corners of the face of the unit. See
Figure 7.
5. Slide the surround against the face of the unit,
aligning the holes in upper and lower, right and left
corners and secure the surround to the unit with
the attachment screws.
NOTE: PLACE THE THREE INSULATION PIECES
INTO THE CAVITIES AT THE BACK OF THE SUR-
ROUND BEFORE POSITIONING THE INSERT INTO
THE FACTORY-BUILT OR MASONRY FIREPLACE.
THIS INSULATION WILL HELP SEAL FOR COLD
AIR LEAKS.
1.4 FAN
Model ATS-AU-D has a factory installed Fan, Junction
Box, variable speed Rheostat Control Switch, and
Temperature Sensor Switch for the fan. The fan, tem-
perature sensor switch, and junction box are located
behind the lower grille. To provide the 240 VAC needed
at the Junction Box, simply plug the 3-prong grounded
cord into a 3-prong grounded 240 VAC wall outlet. This
cord exits the unit at the lower right hand corner.
1.5 INSTALLING THE SURROUND
NOTE: REMOVE FRONT TRIM DOOR AND GLASS
DOOR ASSEMBLIES FROM THE INSERT BEFORE
SURROUND INSTALLATION.
1. Find the coiled low voltage wires and ON/OFF switch
attached to outer right side of the insert. See Figure 7.
2. Disconnect the ON/OFF switch from the low voltage
wire leads, and insert the short wires of the ON/OFF
switch through the hole at the upper right corner
of the surround and push the back of the switch
through the hole - it will be retained in the hole.
FIREBOX
SURROUND
LOW VOLTAGE WIRES
ON/OFF
SWITCH
DRESS GUARD
SURROUND
WITHOUT TRIM

11Heat & Glo • ATS-AU-D • 327-900 Rev. F • 6/09
LOG PLACEMENT
INSTRUCTIONS
Photo A
LOG #1 (SRV327-701): Place log #1 in the back of the heater, locating it's slot on the right over the protruding
tab. The left end of the log is positioned by the two bend up tabs shown in Photo A.
Log Assembly: 327-700A
Model: ATS-AU-D
1
6
3
25
4
Remove dress guard and glass door from heater.
Carefully remove logs from cardboard.
CAUTION: Logs are fragile!

12 Heat & Glo • ATS-AU-D • 327-900 Rev. F • 6/09
LOG #3 (SRV327-703): Position log #3 by locating its slot over the tab on the right front of the burner. The
slot on the right side of log #3 fi ts over the bar grate.
LOG #2 (SRV327-702): Position log #2 by locating its slot over the tab on the front left of the burner. The
slot of the left side of log #2 fi ts over the bar grate. Push the left side back onto it so it rests against the step.
LOG #4 (SRV327-704): Place the bottom left corner of log #4 behind log #2 and rest its top right corner
on log #1.

13Heat & Glo • ATS-AU-D • 327-900 Rev. F • 6/09
LOG #6 (SRV438-724): Position the "Y" end of log #6 into the cutout on log #4 and its opposite end into
the groove on log #2.
LOG #5 (SRV327-705): Rest log #5 in the cutouts on both log #1 and log #2 as shown.

14 Heat & Glo • ATS-AU-D • 327-900 Rev. F • 6/09
FIGURE 9
1.6 FINISHING
Figure 8 shows the minimum vertical and correspond-
ing maximum horizontal dimensions of mantels or other
combustible projections above the gas heater.
1.7 LOG INSTALLATION
Carefully remove the log package from the fi replace
and the logs from their package. Handle logs gen-
tly.
Place the logs in the fi replace by following the steps
shown on pages 11-13.
Replace the glass door and trim door previously re-
moved prior to lighting the unit. Be certain the gas logs
are properly positioned.
12" (305 mm)
MAXIMUM
MANTEL
TOP OF
UNIT
12" (305 mm)
MINIMUM
3/8 in. (10 mm)
1.8 INSTALLER TESTING
The space heater must be tested and be operating
according to manufacturer's specifi cations prior to the
installer leaving the site. Note: The tips of the fl ames
should never hit the top of the fi rebox after the unit has
warmed up. Please contact your dealer or a qualifi ed
service person to replace injector or adjust valve.
Upon completing the gas line connection, a small
amount of air will be in the lines. When fi rst lighting
the pilot light, it will take a few minutes for the lines
to purge themselves of this air. Once the purging is
complete, the pilot and burner will light and operate as
indicated in the Lighting Instructions.
Subsequent lights of the appliance will not require
such purging.
CAUTION: DURING THE INITIAL PURGING
AND SUBSEQUENT LIGHTINGS, NEVER ALLOW
THE GAS VALVE CONTROL KNOB TO REMAIN
DEPRESSED IN THE "PILOT" POSITION WITHOUT
PUSHING THE RED IGNITOR BUTTON AT LEAST
ONCE EVERY SECOND.
Follow the Safety Information and Lighting Instructions
pages of this manual to light the appliance.
To obtain proper operation, it is imperative that the pilot
and main burner fl ame characteristics are steady, not
lifting or fl oating. Typically, the top 3/8-inch (10 mm)
of the pilot generator should be engulfed in the pilot
fl ame. (Figure 9).
FIGURE 8 Proper gas log positioning is shown on pages 11-13.
Follow Section 3.5 TROUBLESHOOTING for adjusting
the appliance to operate properly.

15Heat & Glo • ATS-AU-D • 327-900 Rev. F • 6/09
FIGURE 10
The control system for these models is a millivolt type. It
consists of a gas control valve/variable regulator, a stand-
ing pilot assembly, a thermopile, a piezo ignitor, and an
ON/OFF rocker switch. The controls are located in the
lower compartment behind the lower grille. Access to
this compartment is gained by rotating the grille up. See
Figure 1.
THERMOCOUPLE 3/16” PIGGYBACK CONNECTOR
THERMOPILE
RED TI
WHITE T2
OPTIONAL WALL SWITCH,
THERMOSTAT OR REMOTE
GAS VALVE
WARNING
This appliance has been supplied with an integral barrier
to prevent direct contact with the fixed glass panel. DO
NOT operate the appliance with the barrier removed.
HOT SURFACES!
Glass and other surfaces are hot during
operation AND cool down.
Hot glass will cause burns.
•DO NOT touch glass until it is cooled
• NEVER allow children to touch glass
• Keep children away
• CAREFULLY SUPERVISE children in same room as
fi replace.
• Alert children and adults to hazards of high temperatures.
High temperatures may ignite clothing or other
flammable materials.
• Keep clothing, furniture, draperies and other fl ammable
materials away.
2.0 OPERATING INSTRUCTIONS
WARNING: DO NOT CONNECT 240 VAC TO THE
GAS CONTROL VALVE OR CONTROL WIRING SYSTEM
OF THIS UNIT.
The gas control system is wired so the thermopile, when
heated with the pilot light, will provide approximately 350
to 500 millivolts. This activates the gas control valve. See
Figure 11 for appliance wiring diagram.
When lit for the fi rst time, the appliance will emit a slight
odor for an hour or two. This is due to paint and lubricants
used in the manufacturing process. Additionally, for the
fi rst few minutes after each lighting, vapor may condense
and fog the glass and the fl ames may be blue. After a
few minutes this moisture will disappear and within 15-30
minutes the fl ames should become yellow.
Following this initial burn, turn off the fi replace and allow
the glass to cool completely. Remove the glass using the
appropriate removal instructions. Clean the glass with any
common household glass cleaner and soft cloth. Clean-
ing the glass after the initial burn will prevent the fi lm from
becoming baked onto the glass. After this initial cleaning it
should only be necessary to clean the glass occasionally as
required. Never scrape or rub glass with any abrasive
materials or cleaners.
The heater may produce a noise, caused from metal ex-
pansion and contraction as it heats up and cools down.
This noise is similar to one that a furnace heat duct may
produce and does not affect the operation or longevity of
the heater.

16 Heat & Glo • ATS-AU-D • 327-900 Rev. F • 6/09
2.2 SAFETY INFORMATION
WARNING: IF YOU DO NOT FOLLOW THESE INSTRUCTIONS EXACTLY, A FIRE OR EXPLO-
SION MAY RESULT CAUSING PROPERTY DAMAGE, PERSONAL INJURY, OR LOSS OF LIFE.
FOR YOUR SAFETY READ BEFORE LIGHTING
A. This appliance has a pilot. When lighting the pilot,
follow these instructions exactly.
B. BEFORE LIGHTING smell all around the appli-
ance area for gas. Be sure to smell next to the
fl oor because some gas is heavier than air and
will settle on the fl oor.
WHAT TO DO IF YOU SMELL GAS
• Do not try to light any appliance.
• Do not touch any electric switch; do not use any
phone in your building.
• Immediately call your gas supplier from a neighbor’s
phone. Follow the gas supplier’s instructions.
C. Use only your hand to push in or turn the gas
control knob. Never use tools. If the knob will not
push in or turn by hand, don’t try to repair it. Call a
qualifi ed service technician. Forced or attempted
repair may result in a fi re or explosion.
D. Do not use this appliance if any part has been
under water. Immediately call a qualifi ed service
technician to inspect the appliance and to replace
any part of the gas control system which has been
under water.
OPERATING CAUTIONS
• THIS APPLIANCE MAY EXHIBIT A SLIGHT CAR-
BON DEPOSITION.
• DO NOT PLACE ARTICLES ON OR AGAINST THIS
APPLIANCE.
• DO NOT USE OR STORE FLAMMABLE MATERI-
ALS NEAR THIS APPLIANCE.
• DO NOT SPRAY AEROSOLS IN THE VICINITY OF
THIS APPLIANCE WHILE IT IS IN OPERATION.
• THE DRESS GUARD IS FITTED TO THIS AP-
PLIANCE TO REDUCE THE RISK OF FIRE OR
INJURY FROM BURNS AND NO PART OF IT
SHOULD BE PERMANENTLY REMOVED. FOR
PROTECTION OF YOUNG CHILDREN OR THE
INFIRM, A SECONDARY GUARD IS REQUIRED.
• THE GLASS DOOR ASSEMBLY MUST BE IN
PLACE AND SEALED AND THE FIXED MESH
DRESS GUARD MUST BE IN PLACE ON THE
HEATER BEFORE THE UNIT CAN BE PLACED
INTO SAFE OPERATION.
• DO NOT USE THIS APPLIANCE IF ANY PART HAS
BEEN UNDER WATER. IMMEDIATELY CALL A
QUALIFIED SERVICE TECHNICIAN TO INSPECT
THE UNIT AND TO REPLACE ANY PART OF THE
CONTROL SYSTEM AND ANY GAS CONTROL
WHICH HAS BEEN UNDERWATER.
2.1 SAFETY AND LIGHTING INFORMATION
Follow Section 2.2 SAFETY INFORMATION and 2.3
LIGHTING INSTRUCTIONS to light the appliance.
By design, the fl ame pattern will not be identical from
unit to unit. Additionally, fl ame pattern may vary de-
pending on installation type and weather conditions.
NOTE: THE TIPS OF THE FLAMES SHOULD NEVER
HIT THE TOP OF THE FIREBOX.
• DO NOT OPERATE THIS APPLIANCE WITH THE
GLASS DOOR REMOVED, CRACKED, OR BRO-
KEN. REPLACEMENT OF THE GLASS DOOR
SHOULD BE DONE BY A LICENSED OR QUALI-
FIED PERSON. DO NOT STRIKE OR SLAM THE
GLASS DOOR.
• THE GLASS DOOR ASSEMBLY SHALL ONLY BE
REPLACED AS A COMPLETE UNIT AS SUPPLIED
BY THE GAS HEATER MANUFACTURER. NO
SUBSTITUTE MATERIALS MAY BE USED.

17Heat & Glo • ATS-AU-D • 327-900 Rev. F • 6/09
1. "STOP!" Read the safety information on
previous page.
2. To access controls, open the bottom grille.
3. Turn the valve control knob to the "OFF"
position. To do this, you must turn the knob
clockwise to the "Pilot" position, and
then press in and continue turning clockwise
to the "OFF" position.
GAS CONTROL VALVE
NOTE: Knob cannot be turned from "PILOT"
to "OFF" unless knob is pushed in slightly. Do
not force.
4. WAIT FIVE (5) MINUTES TO CLEAR OUT
ANY GAS. Then smell for gas, including near
the fl oor. If you then smell gas, STOP! Follow
"B" in the safety information above. If you
don't smell gas, go to the next step.
5. The pilot should not require accessing for
lighting purposes. The pilot is located inside
the combustion chamber. If it is necessary
to access the pilot, follow the instructions in
Section 3.1 and 3.3 for glass door removal
and replacement.
2.3 LIGHTING INSTRUCTIONS
THERMOCOUPLE THERMOPILE
6. To put the control in the pilot position, turn the
control knob counter-clockwise to the
"Pilot" position.
7. To light the pilot depress the control knob and
then depress the red piezo button until it makes a
clicking sound. It may be necessary to repeat this
step. If the pilot does not light after 10 seconds,
go back to step 3. The control knob should be
held down for a MINUTE after pilot ignition.
• If the control knob does not pop out when
released, STOP-shut off the gas supply to the
heater control valve, and IMMEDIATELY call
your service technician or gas supplier.
• If the pilot will not stay lit after two tries, turn
the control knob to the "OFF" position and call
your service technician or gas supplier.
8. After the pilot has been lit, the burner can be
turned on by turning the knob counter-clockwise
to the "ON" position. Flip the ON/OFF
switch to the "ON" position.
9. Close the bottom grille.
LIGHTING INSTRUCTIONS
TO TURN OFF GAS APPLIANCE
1. Turn ON/OFF switch to "OFF".
2. Open the bottom grille.
3. Turn the valve control knob clockwise
to the "Pilot" position, then depress knob and continue
turning to "OFF" position.
4. Close the bottom grille.
PILOT BURNER

18 Heat & Glo • ATS-AU-D • 327-900 Rev. F • 6/09
FIGURE 11
2.4 FAN OPERATION
The accessory fan is wired in series with a speed con-
trol switch and a temperature sensor switch. Set the
speed control to an "ON" position and light the heater.
The temperature sensor switch will automatically start
the fan when the switch warms up—and stop the fan
when it cools down. You can manually stop the fan by
turning the speed control switch to "OFF". See Figure
11 for fan wiring diagram.
3.0 SERVICING AND MAINTENANCE
A. HEATER SERVICING: Frequency of heater servic-
ing will depend upon use and type of installation.
B. IMPORTANT: TURN OFF GAS BEFORE SERVIC-
ING APPLIANCE. IT IS RECOMMENDED THAT A
COMPETENT SERVICE TECHNICIAN PERFORM
SERVICE CHECK-UPS AT THE BEGINNING OF
EACH HEATING SEASON.
C. The appliance and fl ue system should be inspected
before initial use and at least annually by a qualifi ed
fi eld service person.
D. Inspect the external fl ue cap on a regular basis to
make sure that no debris is interfering with the air
fl ow.
E. Keep the control compartment, logs, and burner
area surround the logs clean by vacuuming or
brushing at least twice a year.
CAUTION: THE LOGS GET VERY HOT - HANDLE
ONLY WHEN COOL.
FAN
BLUE
BROWN
YELLOW/GREEN
BLUE
BRN
YW/GR
BLK
BLK
TEMP. SENSOR
SWITCH
BLK
BLK
SPEED CONTROL
FAN WIRING DIAGRAM
JUNCTION BOX
BLK
BLK
YELLOW/GRN
YELLOW/GRN
BLUE
BRN
BRN
BLUE
GRD
BLUE
JUNCTION BOX DETAIL
FAN
TEMPERATURE
SENSOR SWITCH
FAN SPEED
CONTROL
JUNCTION BOX

19Heat & Glo • ATS-AU-D • 327-900 Rev. F • 6/09
WARNING: DO NOT USE ABRASIVE CLEAN-
ERS ON THE GLASS DOOR ASSEMBLY. DO NOT
ATTEMPT TO CLEAN THE GLASS DOOR WHEN
IT IS HOT.
F. The glass door should be cleaned using a house-
hold glass cleaner. DO NOT handle or attempt to
clean the glass when it is HOT.
G. In order to properly clean the burner and pilot
assembly, turn off the gas to the unit and remove
the logs exposing the burner and pilot assembly.
Clean all foreign materials from top of burner.
Check to make sure that the burner orifi ce is
clean.
Visually inspect the pilot periodically. Brush or blow
away any dust or linen accumulations. If the pilot orifi ce
is plugged, disassembly may be required to remove
any foreign materials from the orifi ce or tubing.
To obtain proper operation, it is imperative that the
pilot and main burner fl ame characteristics are steady,
not lifting or fl oating. Typically, the top 3/8-inch (9.5m)
of the pilot generator should be engulfed in the pilot
fl ame (Figure 9).
3.1 REMOVAL OF COVERS FOR SER-
VICING
1. Control Compartment Grille
• Rotate the bottom grille down to access the gas
controls.
2. Dress Guard and Glass Door
• Pull the bottom of the dress guard out to dis-
engage its retaining clips. Lift the guard up and
forward to remove. Replace the dress guard
when servicing is complete.
• Rotate the bottom grille down. Release the two
spring latches, at the bottom of the glass door,
releasing the glass frame. Carefully rotate the
glass door out at its bottom and lower the top
clips to clear their retainers.
3.2 REMOVAL OF COMPONENTS FOR
SERVICE
1. Burner
• Carefully remove the log set. Next, unscrew the two
fasteners holding the grate. The grate and base pan
can now removed.
• Unscrew the brackets at both ends of the burner and
slide the burner to the right away from the burner
orifi ce.
2. Pilot Assembly/Ignition System
• Remove the log set, log grate, and base pan.
• Disconnect the gas supply tube from the underside
of the pilot burner.
• Disconnect the electrode wire from the piezo ignitor
(found adjacent to the gas control valve).
• Unscrew the pilot assembly bracket and remove.
NOTE: When removing the pilot assembly, carefully
pull the electrode wire up through the grommeted
hole in the base pan.
3.3 PARTS REPLACEMENT
1. Fan
• Unplug the power cord.
• Remove the electrical cover plate from the lower
right hand side of the heater. Loosen the retaining
screws on the wire connector to disconnect the
fan wires. Disconnect earth wire from junction box
stud.
• Slide the fan out the front of the lower controls
compartment.
2. Fan Speed Control
• Disconnect the wires from the fan speed control
switch, pull off the knob, and remove the nut holding
the speed control to the bracket.
3. Temperature Sensor
• Disconnect the wires from the fan temperature sen-
sor switch and remove the nut holding the switch
bracket onto the side of the fi rebox.
4. Glass Panel
• To replace the glass door, insert the top two tabs
into the receiving slots. Push glass against unit and
latch the spring latches onto the bottom two tabs of
the glass frames.
3.4 ADJUSTMENTS AND REPLACE-
MENT PARTS
Adjustments and replacement parts for this appliance
should only be done by a qualifi ed service person. A
wiring diagram for the appliance is shown in SECTION
2.0 OPERATING INSTRUCTIONS. A replacement part
table is shown in SECTION 4.0 of this manual.

20 Heat & Glo • ATS-AU-D • 327-900 Rev. F • 6/09
3.6 TROUBLESHOOTING
With proper installation and maintenance, your new Gas Heater should provide years of trouble-free service. If you do experience a
problem, refer to the Trouble Shooting Guide below. This guide will assist a qualifi ed service person in the diagnosis of problems and
the corrective action to be taken.
Electronic Ignition System
ATS-AU-D
Symptom Possible Causes Corrective Actions
1. Spark Ignitor will not light pi-
lot after repeated triggering of
red button.
a. Defective ignitor (no spark at
electrode).
Check for spark at electrode and pilot; if no spark and electrode wire is
properly connected, replace ignitor.
b. Defective pilot.
Using a match, light pilot. If pilot lights, turn off pilot and trigger the red
button again. If pilot lights, an improper gas/air mixture caused the bad
lighting and a longer purge period is recommended.
c. No gas or low gas pressure.
Check unit's shut-off valve and remote shut-off valves from heater. Usually
there is a valve near the main. There can be more than one (1) valve
between the heater and main.
Low pressure can be caused by a variety of situations such as a bent line,
too narrow diameter of pipe or even low line pressure. Check for kinked
lines. If none, consult with plumber or gas supplier.
d. No L.P. in tank. Check L.P. (propane) tank. Refi ll the fuel tank.
2. Pilot will not stay lit after
carefully following lighting
instructions.
a. Defective thermocouple.
Check that pilot fl ame impinges on thermocouple. Clean and/ or adjust
pilot for maximum fl ame impingement.
Ensure that the thermocouple connection at the gas valve is fully inserted
and tight (hand tight plus 1/4 turn).
Disconnect the thermocouple from the valve, place one millivolt meter lead
wire on the tip of the thermocouple and the other meter lead wire on the
thermocouple copper lead. Start the pilot and hold the valve knob in. If the
millivolt reading is less than 15 mv, replace the thermocouple.
b. Defective valve. If thermocouple is producing more than 15 millivolts, replace faulty valve.
3. Pilot burning, no gas burner,
valve knob "ON", "on-off"
switch "ON".
a. ON-OFF" switch or wires
defective.
Check "on-off" switch and wires for proper connections. Place jumper wires
across terminals at switch-if burner comes on, replace defective switch. If
OK, place jumper wires across switch wires at gas valve-if burner comes
on, wires are faulty or connections are bad.
b. Thermopile may not be gener-
ating suffi cient millivoltage.
If the pilot fl ame is not close enough physically to the thermopile, adjust
the pilot fl ame.
Be sure the wire connections from the thermopile at the gas valve terminals
are tight and the thermopile is fully inserted into the pilot bracket.
Check the thermopile with a millivolt meter. Take the reading at TH-TP
& TP terminals of the gas valve. The meter should read 325 millivolts
minimum, while holding the valve knob depressed in the pilot position,
with the pilot lit, and the ON/OFF switch in the OFF position. Replace the
faulty thermopile if the reading is below the specifi ed minimum.
With the pilot in the ON position, disconnect the thermopile leads from
the valve. Take a reading at the thermopile leads. The reading should be
325 millivolts minimum. Replace the thermopile if the reading is below the
minimum.
c. Defective valve.
Turn valve knob to “ON”. Place ON/OFF switch to “ON”. Check with
millivolt meter at thermopile terminals. Millivolt meter should read greater
than 100 m.v. If the reading is okay and the burner does not come on,
replace the gas valve.
d. Plugged burner orifi ce.Check burner orifi ce for stoppage and remove.
e. Wall switch, or wires defective. Follow corrective action in A.1 above; check switch and wiring. Replace
where defective.
4. Frequent pilot outage prob-
lem.
a. Pilot fl ame may be too high
or too low, or blowing (high),
causing pilot safety to drop out.
Clean and adjust pilot fl ame for maximum fl ame impingement on the
thermocouple. Follow lighting instruction carefully.