AQUA-THERM MANUAL (0109)

AQUA-THERM MANUAL (0109)
AQUA-THERM
“The Heating Professionals Choice”
Outdoor Wood Burning Appliances
Installation and Operation Manual
For the Aqua-Therm and Eco-One open and closed systems
VERIFY WITH INSURANCE COMPANY AND ALL LOCAL CODES AND ORDINANCES
PRIOR TO INSTALLATION.
IT IS THE OWNER’S RESPONSIBILITY TO ENSURE THAT THE APPLIANCE IS
ACCEPTABLE TO THEIR INSURANCE CARRIER AND THAT THE APPLIANCE
MEETS ALL LOCAL CODES AND ORDINANCES.
0109
Thank you for purchasing the AQUA-THERM Outdoor Wood Burning Appliance.
The AQUA-THERM is a quality Outdoor Wood Burning Appliance designed to effectively heat structures.
Please read and follow all safety instructions to ensure optimal performance.
The installation and operation of the AQUA-THERM is quite simple. Nevertheless, we recommend that the
instructions be carefully read and followed. Pay particular attention to chimney and chimney connector
installation as they present the greatest fire danger.
If you have any questions on the installation or operation of your AQUA-THERM, please contact your local
AQUA-THERM Representative.
---------------------------------------------------------------------------------------------------OBSERVE AND FOLLOW ALL SAFETY INSTRUCTIONS
Failure to install properly or follow safety instructions could result in severe personal
injury, death or substantial property damage.
Hazard definitions
The following defined terms are used throughout this manual to bring attention to the presence of hazards of
various risk levels or to important information concerning the life of the product.
DANGER
Indicates presence of hazards that will cause severe personal injury, death or substantial
property damage.
WARNING
Indicates presence of hazards that can cause severe personal injury, death or substantial property damage.
CAUTION
Indicates presence of hazards that will or can cause minor personal injury or property
damage.
NOTICE
Indicates special instructions on installation, operation or maintenance that are important
but not related to personal injury or property damage.
Owner’s registration card must be completed and returned to Aqua-Therm for warranty to be in effect.
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SAVE THESE INSTRUCTIONS
Please fill in the following blanks and have this manual available when you call your local Aqua-Therm
representative for assistance.
Model # ______________
Serial # _______________
Date of Purchase _______________
Date of Installation _______________
Dealer Name
________________
Dealer Phone # ________________
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0109
CONTENTS
1. GENERAL ————————————————————————–——————
Safety ………………………………………………4
Specifications ……………………….……………..5
Product Description ………………………………..6
2. INSTALLATION —————————————————————–————-——Installation Tips ……………………………………8
Placement …………………………….…………….9
Clearances ………………………………………...10
Site Preparation …………………………………...11
Transfer Line Installation …………………………12
Lifting ……………….…………..……..………….14
Contents …………………………...………………15
Insulation Blanket …………………………………16
Venting Installation …………………………….....18
Tapping Diagram …………...………………….….19
Plumbing Installation …………………...…..…....20
Electrical Installation ……………………………...22
Typical System Schematics ……………...………..28
Accessories: Side Arm Heat Exchanger…………..35
Accessories: Exhaust Draft Hood …….…………..36
3. START-UP —————————————————————————–—————
Initial Fill …………………………….…………...37
Start up Checklist …... ………….…….……….…40
4. OPERATION —————–—-————————————————–———-———Initial Start-up ………………………………….....41
Operation …………………………...………….…42
Maintenance ………………………..……………..43
5. TROUBLESHOOTING ……………………………………...46
6. REPAIR PARTS ……………………………………………..48
7. WARRANTY ………………………………………………….51
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0109
SAFETY
ALL STATE or LOCAL CODES take precedence and MUST be observed
Many of these recommendations are based upon the National Fire Protection Assn. Code 211. Before installing
or starting operation, read and familiarize yourself with all instructions. Installation is to be performed only by
qualified heating professionals.
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DANGER: RISK OF EXPLOSION OR PERSONAL INJURY
Ensure that blower is ‘OFF’ prior to opening loading door or ash door. Failure to do so could result in
severe burns.
ALWAYS hesitate momentarily between the first and second latches when opening doors to allow
unburned gases to ignite. Failure to do so could result in severe burns.
DO NOT use chemicals, kerosene or other flammable liquids to start a fire; severe burns could result.
DO NOT store combustible liquids or materials near the appliance.
DO NOT store wood within the minimum clearance to combustibles.
DO NOT burn gasoline, naphtha or engine oil.
DO NOT burn garbage, tires, telephone poles, railroad ties or yard waste. In many areas this is illegal
and will damage the appliance. Burning anything other than wood can void your warranty.
DO NOT start a fire if flammable vapors or dust are present. An explosion could result.
Most anti-freeze is glycol based. Never store glycol of any kind near the appliance or any potential
ignition source. All glycol is flammable when exposed to high temperatures. If glycol is allowed to
accumulate in or around the appliance or any other potential ignition source, a fire can develop.
Never use automotive anti-freeze or ethylene glycol in the system. Using these glycols can destroy
rubber pump and valve seals leading to hazardous leakage and system damage.
Monitor and inspect the system and appliance regularly for leakage. Repair any leaks immediately to
prevent possible accumulation of glycol.
NEVER operate without a properly installed pressure relief valve (Watts Regulator M335 or
equivalent), which will discharge water and relieve pressure at 30 psi. Use only a boiler relief valve
designed to lift at 30 psi. Failure to use proper valve could result in an explosion, personal injury or
property damage.
Open the pressure relief valve at least annually to ensure waterways are clear. Avoid contact with the
scalding water that will be released. Failure to open valve could result in an explosion if valve should
stick.
DO NOT install in home, basement or garage.
Do not use petroleum-based cleaning or sealing compounds in the heating system. Pump and valve
water seal deterioration will occur. This can result in substantial property damage.
Do not use "homemade cures" or "boiler patent medicines". Serious damage to the appliance, personnel
and/or property may result.
To avoid electric shock, disconnect electrical supply before performing maintenance.
To avoid severe burns, allow the appliance to cool before performing maintenance.
This appliance requires electricity whenever in operation. Operation without electricity could result in
the appliance overheating. If power outages are anticipated, a back-up electrical generator is
recommended.
Appliance Operation —
• DO NOT block flow of combustion or ventilation air to the appliance.
• DO NOT turn off the pump or prevent fluid flow during operation.
• DO NOT restrict access to the rear of the unit for maintenance..
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0109
PRODUCT SPECIFICATIONS
MODEL
145
275
345
Height
46”
57 ½”
57 ½”
Length (with Fan)
58”
58”
73”
Width
30”
38 ½”
38 ½”
Fire Box Length
42”
42”
55 ½”
Fire Box Diameter
25”
32 ½”
32 ½”
Fire Box Volume
10 cubic Ft
17 cubic Ft
23 cubic Ft
Door Opening
16” x 20”
19 ½” x 25”
19 ½” x 25”
Water Volume
48 Gal
59 Gal
76 Gal
Chimney Size
6” Double Wall
6” Double Wall
6” Double Wall
630 lbs
900 lbs
1,050 lbs
40,000 Btu/Hr
80,000 Btu/Hr
100,000 Btu/Hr
S-145 SS
S-275 SS
S-345 SS
67”
67”
67”
48”
48”
48”
72”
72”
84”
6” Double Wall
6” Double Wall
6” Double Wall
1,080 lbs
1,350 lbs.
1,590 lbs.
Weight
Sustained Output
SHELTERED UNITS
Height to Roof Peak
Width
Length
Chimney Size
Weight
Note: Output values are based on theoretical 12 hour sustained burn rate under optimal conditions and are
provided as guideline only. Actual output will depend on a variety of factors beyond the
manufacturer’s control, including: boiler location, wood species, wood moisture, wood size, ash
management and combustion air temperature...to name a few.
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0109
PRODUCT DESCRIPTION
The Aqua-Therm is a wood burning boiler. It is to be installed in a building or shelter outside the structure
being heated. It can also be purchased as a completely enclosed, sheltered unit. A circulating pump moves the
heated water to a heat emitter. This can be baseboard radiator, finned radiator (heat exchanger), unit heater or
radiant floor heating systems.
Installing the Aqua-Therm in a site built building allows additional space for storing wood, allowing it to dry
properly. Also, the operator is protected from snow and rain while loading or maintaining the appliance. If the
Aqua-Therm is to be installed in a building or shelter follow all instructions on pages 9-11.
The “Sheltered” Aqua-Therm requires minimal assembly. The weather tight enclosure, insulation blanket,
wiring and controls come factory installed. Some near boiler plumbing is required. It is also recommended
that the shelter be set on a concrete pad for stability and to keep clear from combustibles. Never store
combustibles or chainsaws in the shelter.
The combustion process is controlled by an Aquastat that senses exiting water temperature. The Aquastat
energizes a blower if water temperature is below setpoint (typically 165° F—180° F). Once the desired water
temperature has been obtained, the Aquastat turns off the blower. If water temperature falls by a certain
amount (called the “differential”) the Aquastat starts the process over again. It is not necessary to run a
thermostat wire from the building being heated to the boiler.
The Aquastat simultaneously provides power to the blower and associated solenoid controlling a flapper
mounted on the blower inlet. With the flapper opened, the blower moves air into the firebox below the grates
and through the door. The blower and solenoid operate together to regulate air flow into the firebox. A High
Temperature Safety will interrupt power to the blower and solenoid if temperature exceeds 190° F. It will
automatically reset once temperature falls below 150° F.
A Loading Switch on the control panel interrupts power to the blower reducing the fire prior to opening the
loading door.
A second, “Safety” latch on both the loading door and the ash door allow unburned gases to combust prior to
opening the door. Always pause between the first latch and the safety latch to minimize flare backs.
The system is an open system. A fill cap will relieve pressure if it exceeds 18 psi. An expansion tank allows
the water to expand or contract as it changes temperature while maintaining a fairly constant pressure. A
pressure relief valve is installed on the appliance to safely reduce system pressure if it ever exceeds 30 psi. The
appliance is hydrostatically tested at the factory to 60 psi.
The water/anti-freeze solution is continuously pumped through the appliance to the building being heated. The
thermostat in the building being heated determines how the delivered heat is used.
Your Aqua-Therm warranty requires a minimum of 30% glycol in the system. Your Aqua-Therm comes with
a glycol tester to aid you in determining your glycol percentage. Refer to the instruction sheet that was packed
with your glycol tester. Anti-freeze Tester instructions are also provided on page 44.
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0109
Open System Tank
Some State Codes require that the unit be continuously vented to the atmosphere. In these cases, an Open
System Tank is plumbed in place of the Fill Cap. The Tank has a sight glass for level indication and an open
vent at the top. The Tank allows for water volume expansion as the system heats up, eliminating the need for
the Expansion Tank, Air Scoop and Air Vent.
ECO-One Model
The Aqua-Therm ECO-One model has a second blower in the door and an upper baffle designed to increase
combustion air and reduce emissions. Installation and operation of the ECO-One is identical to the traditional
Aqua-Therm units.
Hot Water - Radiant Floor & Baseboard
The Aqua-Therm delivers hot water into the building and attaches to backup boiler or a bypass loop. The
pump on the Aqua-Therm runs continuously.
A surface Aquastat is used as a safety limit Aquastat on hydronic systems. If the boiler temperature rises
above the Aquastat setting the safety limit will bypass the house thermostat and shed excess heat.
Plumbing and Wiring diagrams - pages 32-33.
Forced Air
The Aqua-Therm delivers hot water into the building and attaches to a bypass loop. The pump on the AquaTherm runs continuously.
A wall thermostat in the space being heated controls a relay, which starts and stops the existing furnace fan.
The circulating pump continuously circulates hot water throughout the entire system. Heat will be extracted
when the existing furnace fan moves air through the heat exchanger.
A surface Aquastat is used as a safety limit on a forced air system. It is strapped to the hot supply pipe, usually
in the house near the existing furnace and is set 10° higher than the fan control Aquastat on the Aqua-Therm. If
the pipe it is strapped to reaches the setting, the strap-on Aquastat will override the thermostat and turn the fan
of the existing furnace on to get rid of excess heat.
Plumbing and Wiring diagrams - pages 30-31.
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0109
INSTALLATION: TIPS
Avoiding Air Locks
The AQUA-THERM is designed to not exceed 18 psi, venting to the atmosphere if necessary. Water running downhill
balances the force required to move water uphill. Air trapped in the lines prevents circulation. Poor water circulation is a
common start up problem. Reduced flow can be difficult to detect because the pipes will feel hot. It is essential to
provide a means for air in the lines to escape as the system is being filled. Design piping to avoid high points where air
can be trapped or install bleed vents at these locations. Various vent fittings are available such as vented brass elbows or
baseboard tees. Vents should be open during the fill process. Close the vents when bubble-free water runs out. The auto
air vents on top of the air scoop should remain open at all times.
Ball Valves
Install ball valves in the lines to isolate various components or sections. The ball valves will eliminate the need to drain
and refill the entire system should joints need to be re-soldered or plumbing modified. Normally, isolation pump flanges
are supplied with the pump. These have built in ball valves that can be opened or closed with an Allen wrench. This
allows the pump to be replaced without draining the system. It is recommended that isolation ball valves be installed in
the home on each transfer line to assist in filling the system.
Water Supply
By adding a tee and an additional drain valve to the appliance line in your home, you can add water to the heating system
from the basement. The AQUA-THERM should be filled the first time according to page 37. When adding water to
system from basement, we suggest using a hose between boiler line and domestic water supply. Ensure that you can
adequately monitor system pressure while filling. Ideally, system pressure should be visible from the valve being used to
fill the system. When completed, disconnect water supply to prevent accidental filling or backflow, which may
contaminate your domestic water.
Corrosion Inhibitor/Anti-freeze
It is required that a corrosion inhibitor be used and maintained in the AQUA-THERM to prolong the life of the
appliance. Failure to do so will result in loss of Warranty. At a minimum, corrosion inhibitor level must be
tested and adjusted annually. In addition to freeze protection, most hydronic anti-freeze solutions include an inhibitor
package designed to reduce corrosion. Use either a corrosion inhibitor or anti-freeze specifically designed for hydronic
(or boiler) systems. Follow all instructions for maintenance, most require annual testing and replenishment. Check
instructions with anti-freeze for recommended dilution percentage. Follow all instructions for the selected anti-freeze,
most require that the system be flushed prior to adding and that the water be within a certain Ph band.
Plumbing & Wiring
When plumbing and wiring, it is important to know which package you purchased (WO or FA). Check carefully to be
sure you are using the proper instructions for your system. Note that the FA package requires purchasing the WO
package as well.
Relief Valves
Place a 5-10 gallon bucket under the relief valve to catch the water or anti-freeze solution if the relief valve would open.
See page 21 for details on piping the relief valves.
1” Fittings
If using non-metallic transfer lines, ensure that the fittings on both ends of the transfer lines are tight.
Heat Exchanger Positioning
If using a forced air heat exchanger, position your heat exchanger so air won’t be trapped in the “U’s”. This usually
means the tubes should be horizontal. The hot (supply) line from boiler should enter the bottom opening on the heat
exchanger. Examine your components and visualize how the air will escape before you solder the connections. If
possible, leave room to access the heat exchanger for cleaning. Dust collects on the fins reducing its ability to transfer
heat.
8
0109
INSTALLATION: PLACEMENT
NOTE
CHECK WITH INSURANCE COMPANY PRIOR TO INSTALLATION. IT IS THE
OWNER’S RESPONSIBILITY TO ENSURE THAT THE APPLIANCE IS
ACCEPTABLE TO THEIR INSURANCE CARRIER.
NOTE
VERIFY ALL LOCAL CODES AND ORDINANCES PRIOR TO INSTALLATION.
IT IS THE OWNER’S RESPONSIBILITY TO ENSURE THAT THE APPLIANCE
MEETS ALL LOCAL CODES AND ORDINANCES
NOTE
LOCAL CODE OR ORDINANCE PLACEMENT REQUIREMENTS TAKE
PRECEDENCE AND MUST BE OBSERVED
NOTE
Improper use or failure to maintain the outdoor wood boiler may cause nuisance
conditions. Persons operating this outdoor wood boiler are responsible for operation of
the outdoor wood boiler so as not to cause nuisance conditions. Even proper use and
maintenance of the outdoor wood boiler, and meeting the distance and stack height
recommendations and requirements in State and local regulations may not always be
adequate to prevent nuisance conditions in some areas due to terrain or other factors.
1) When placing the AQUA-THERM, the following should be considered:
A)
Review the minimum clearances to combustibles on pages 10- 11.
B)
Review the recommended stack heights on page 18.
C)
Do not locate near any combustible materials, gasoline or other flammable liquids or gases.
D)
Locate away from dry grassy areas.
E)
Place far enough away from any building to minimize fire danger.
F)
Check with insurance company and local codes or ordinances.
G)
Do not install in an area where nearby structures or trees might cause down drafts.
H)
Typically Outdoor Wood Burning Appliances are located 40 to 100 ft down wind from the
served structure.
I)
Do not locate an Outdoor Wood Burning Appliance within 100 ft of a residence not served
by the appliance. Be considerate of neighboring residences, properties, parks, etc.
J)
Transfer lines in excess of 100 ft may require a larger size pump than the one provided with
the appliance.
K)
Locate to allow easy access to wood supply.
L)
To aid in smoke dispersal, extra chimney lengths may be required depending on the distance
to surrounding structures. See page 18 for guidance.
M)
It is recommended that the appliance be located with due consideration to the prevailing
wind direction.
N)
It is recommended that the appliance be located with due consideration to any neighboring
residences.
O)
The unit requires 115 V 15 Amp electrical service to operate.
P)
Locate the unit to provide access to wood supply. Wood should be split, stacked and
seasoned for one year prior to use. Wood should not be stored within the minimum
clearance to combustibles stated on page 10. Ensure that wood storage does not impede
maintenance access to the sides or back of the appliance.
DANGER
Failure to keep AQUA-THERM area clear and free of combustible materials, gasoline
and other flammable liquids and vapors can result in severe personal injury, death or
substantial property damage.
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0109
INSTALLATION: CLEARANCES
ECO-One Models:
Add 8” to the length for
the door mounted blower
Sheltered Units:
Recommended Transfer
Line opening
SLAB
APPLIANCE
DIMENSIONS
DIMENSIONS
BUILDING DIMENSIONS
(INTERIOR)
Minimum
based on
(MINIMUM)
Combustibles
Recommended
L
W
H
L
W
L cbst
W
cbst
L
rcmd
W
rcmd
145
58”
30”
46”
124”
66”
112”
42”
132”
102”
275
58”
38 ½” 57 ½”
124”
74 ½”
112”
50 ½”
132”
345
73”
38 ½” 57 ½”
139”
74 ½”
127”
50 ½”
132”
10
C
H
I
M
N
E
Y
SHELTER
DIMENSIONS
L
shltr
W
shltr
18”
72”
48”
110 ½”
18”
72”
48”
110 ½”
18”
84”
48”
0109
INSTALLATION: SITE PREPARATION
Outdoor Wood Burning Appliances shall not be installed in a location where gasoline or other flammable
vapors are likely to be present. The AQUA-THERM is designed to be installed away from the building being
heated either as a stand alone unit or in a separate structure. All installations must be in accordance with local
and state codes which may differ from this manual.
Foundation
The AQUA-THERM should be located on a level 2” minimum thickness concrete foundation pad. At a
minimum, there must be a non-combustible pad (concrete, brick or paver) the width of the appliance extending
out 48 inches from the front of the unit.
DANGER
A non-combustible pad must be installed in front of the unit to contain any sparks or
coals out of the Loading door or Ash door. Fire can result, causing severe personal
injury, death or substantial property damage.
DO NOT install in a basement or garage.
Flooring
The AQUA-THERM should be placed on a non-combustible floor which must extend a minimum of 6 inches
beyond the appliance on both sides and back and 48 inches in front.
DANGER
Do not install appliance on carpeting even if foundation is used. Fire can result, causing
severe personal injury, death or substantial property damage.
Clearances:
The AQUA-THERM must be installed with these minimum clearances from combustibles.
Top – 24” Front – 48” Back – 6” Sides – 6”
DANGER
All single wall chimneys must be at least 18” from any combustible surface. Fire can
result, causing severe personal injury, death or substantial property damage.
The following clearances are recommended for maintenance:
Back – 24” Sides – 36”
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0109
INSTALLATION: TRANSFER LINES
Pipe Fittings: When using Pex-Aluminum-Pex tubing between the structure and the appliance, remember to
use a beveling tool to bevel the inside edge of the tubing. Beveling will reduce chance of damaging the O-rings
on the fittings.
It is recommended that Isolation Valves be located on each transfer line at the structure being served. This
will assist in initial filling of the system.
Pipe: PEX-Aluminum-PEX, PEX with an EVOH oxygen barrier , or Soft temper copper in a roll (type L or type K) may
be used to conduct water from the appliance to the structure. Minimum pipe rating should be 180°F at 50 psi. Purchase in
full lengths to avoid joints underground. Inside the house a rigid copper Type M or PEX with an oxygen barrier are most
commonly used.
The pipe size needed depends upon the distance between the Aqua-Therm and the heat exchanger. Diameters that are too
small will restrict water flow reducing the amount of heat available to the house. Use a minimum of 1" I.D. pipe regardless
of the distance. Situations where the underground lines are more than 100 feet in one direction may require a larger pump
than that provided. Contact your AQUA-THERM representative for assistance in sizing the appropriate pump.
The underground pipe and insulation are usually buried 18" to 24" deep. A 3' depth is recommended for under driveways.
To go deeper can increase the chances of laying the pipes where ground water could rob heat.
Pipe Insulation: The underground pipe insulation is the key to an efficient heating system. Without proper insulation
excessive heat will be lost to the ground. Insulation must not absorb water. Sheets of 2" blue or pink closed cell
Styrofoam can be cut into strips with a table saw or circle saw. One 4' x 8' sheet can be cut into 4 - 8" strips, 4 - 1 1/2"
strips and 2 - 1" strips. Each sheet will insulate 16 feet of pipe. Assemble the strips to "box" the water pipes. The first
top section should be cut in half so the top and bottom seams are off set. The insulation can be held together with
nails, tape or glue. By wrapping a layer of 6 mil. plastic over the box before back filling to prevent surface water from
intruding. Typically this style of insulating achieves an R-10.
We have tested 100 ft. runs in Minnesota and have less than 2° temperature loss with this system. If insulated
properly there will be minimal heat loss from the pipes. There is no need to bury below frost line. Eighteen inches is
deep enough except where there is vehicular traffic, then bury lines 36 inches.
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0109
INSTALLATION: TRANSFER LINES (Cont.)
Some customers have used foam pipe insulation on the lines; then placed them in a 4" sewer
pipe. This style of insulation has an R-value of 2. This is not enough insulation! We have
tested this system and found 10-20° heat loss on 50 ft. runs. A 20° loss can rob 40 - 50,000
BTU's per hour. This is enough to heat many homes! No one can afford this type of heat loss
into the ground.
NOTE:
A wire, going to the house thermostat, is NOT needed in trench, however a 115-volt wire for power can be added.
Preformed Insulation:
Aqua-Therm offers two types of preformed pipe insulation.
Insul-PEX
Insul-PEX is a prefabricated transfer conduit containing two 1” PEX lines and insulation encased in a plastic water
tight, corrugated tube. Ensure that PEX fittings are used with Insul-PEX pipe.
Round
For heavy soil or areas where ground water may be a problem, use the round design insulation. This is specially made
to fit inside a 6" PVC. Slip insulation inside pipe to make a waterproof installation.* Round insulation is made of
Type II Polystyrene. It's important to keep water out of the pipe when it's being installed.
* Gluing seams and joints is recommended.
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0109
INSTALLATION: LIFTING THE AQUA-THERM
HANDLING & PLACMEMENT OF THE APPLIANCE
DANGER
Ensure that all lifting devices, chains, etc. Be rated for the weight being lifted. Use
caution when lifting the AQUA-THERM. Dropping of the appliance can cause severe
personal injury, death or substantial property damage.
1. The AQUA-THERM can be moved by forklift from the sides. Do not fork from the front or back The
appliance can also be lifted from the top using a chain attached to the lifting bars on the top front and top
back of the appliance. If lifting from the top:
•
It is recommended that the chain have lifting hooks on the ends.
•
It is recommended that some sort of spreader bar (or the bucket on the loader) be employed to
protect the jacket from damage by the chains.
•
Lift SLOWLY to verify balance point prior to moving.
2. The Sheltered AQUA-THERM can be moved by forklift through special openings on the front of the
shelter. Do not fork from the sides or back. It can also be lifted from the top by attaching a chain to the lift
hook located on the roof near the chimney
3. The appliance should be placed on a concrete slab. Level the unit to allow free opening and closing of
doors. See page 10 for slab dimensions. For Sheltered AQUA-THERM review the recommended Transfer
Line opening on page 10 (8” off of the right rear corner of the shelter).
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0109
INSTALLATION: INSPECTING CONTENTS
COMPONENTS SHIPPED LOOSE INSIDE: (see page 48 for component illustrations)
Unsheltered AQUA-THERM
• Expansion Tank
• Air Scoop and Air Vent
• Aquastat and Well
• Pressure and Temperature
Gauge
• Blower and Shutter Assembly
• Wiring Harness
• Pump and Flanges
• Relief Valves (Temperature/
Pressure and Pressure)
• Ash Auger Crank
• Ash Door
• Insulation Blanket, Foil Tape
• Surface Aquastat
• Plumbing parts: 1-1/4” Elbow, Nipple, 2 Boiler Drain
Valves
• Open System Tank (if used)
UPPER BAFFLE
LOWER BAFFLE
Sheltered AQUA-THERM
• Expansion Tank
“SHIPPING” POSTION
• Air Scoop and Air Vent
• Ash Auger Crank
• Surface Aquastat
Additionally, if the Forced Air package (FA) is ordered, there will be a Fan Control Relay and a Water to Air
Heat Exchanger (“Coil”).
BAFFLES
The Baffles (Upper and Lower) come factory installed in all units. Inside the Fire Box, verify that the Lower
Baffle is in place below the Grates and that the Upper Baffle is in place below the chimney opening.
LOADING DOOR HANDLE
The AQUA-THERM comes with the Loading Door Handle in the
“shipping position”. Remove the nut and move the Handle to the outer
hole for proper operation. Reinstall the nut.
GRATES
The unit comes with grates installed. Grates should be placed so that
the side with the “wider” opening is facing down to prevent coals from
clogging openings and restricting airflow.
CORRECT
INCORRECT
ASH DOOR:
The door is normally shipped unattached to avoid damage. Install door before lighting a fire. Stove will overheat without ash door properly in place and sealing. Check to be sure door closes securely and that gasket is
sealing.
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0109
INSTALLATION: INSULATION BLANKET
(UNSHELTERED UNITS ONLY)
MODELS 145 SS AND 275 SS
Required Tools: Scissors, Utility Knife and Masking Tape
CAUTION
Fiberglass may cause minor skin irritation so we recommend that you wear gloves
and long sleeve shirt. Wash with soap and water when finished.
NOTICE
Insulation must be installed properly to ensure maximum R-value. Do not stretch
tight, but leave fluffy.
1. Clean appliance surfaces with soap and water to ensure tape will adhere properly. Dry completely.
2. Locate the piece of insulation for the back (145: pc 40135, 275: pc 40136). Cut a circular piece to adequately cover the back of the appliance (approximately 8” larger than the diameter of the back).
3. Install back piece on back of the appliance, foil side out. Cut slits to accommodate pipe openings (pay
careful attention to relief valve opening at the top). Hold in place with masking tape.
4. If controls and chimney have already been installed, slit the insulation sheet down the middle
starting from the back to the chimney opening. If controls are not installed, go to step 5.
5. Wrap insulation around the appliance (145: pc 40139, 275: pc 40140). Carefully cut circles around fittings
where controls are to be attached. Use foil tape to close slits between openings on top of the appliance if
necessary.
6. Attach the sides together at the bottom of the Ash Trough with foil tape the full length of the appliance.
7. Seal around chimney opening with foil tape.
8. Attach the body insulation to the back insulation with foil tape. Tape completely around stove.
9. On front of appliance fold facing and tuck under insulation to form a finished edge.
DANGER
Ensure that the pressure relief valve or the temperature relief valves are not obstructed. Failure to comply can result in personal injury, death or substantial
property damage.
16
0109
INSTALLATION: INSULATION BLANKET
(UNSHELTERED UNITS ONLY)
MODELS 345 SS
Required Tools: Scissors, Utility Knife and Masking Tape
CAUTION
Fiberglass may cause minor skin irritation so we recommend that you wear gloves
and long sleeve shirt. Wash with soap and water when finished.
NOTICE
Insulation must be installed properly to ensure maximum R-value. Do not stretch
tight, but leave fluffy.
1.
Clean appliance surfaces with soap and water to ensure tape will adhere properly. Dry completely.
2.
Locate the piece of insulation for the back (pc 40136). Cut a circular piece to adequately cover the
back of the appliance (approximately 8” larger than the diameter of the back).
3.
Install back piece on back of the appliance, foil side out. Cut slits to accommodate pipe openings
(pay careful attention to relief valve opening at the top). Hold in place with masking tape.
4.
There are 3 pieces for the sides and bottom, all labeled 40138. Attach the first piece with masking tape
to the side of the appliance foil side out.
5.
Attach the second piece with masking tape to the other side of the appliance foil side out. Overlap foil
flap to the first piece. Run a piece of foil tape along the seam at the top.
6.
Attach the third piece with foil tape to the second piece running the length of the bottom of the
appliance.
7.
Wrap the bottom piece underneath the appliance, fitting around legs. The first side piece should
overlap the bottom piece by about 2”. Attach the bottom and side pieces with foil tape running the
length of the appliance.
8.
Finish by taping over all seams with foil tape.
9.
Seal around chimney opening with foil tape.
10.
Attach the body insulation to the back insulation with foil tape. Tape completely around stove.
11.
On front of appliance fold facing and tuck under insulation to form a finished edge.
DANGER
Ensure that the pressure relief valve or the temperature relief valves are not obstructed. Failure to comply can result in personal injury, death or substantial
property damage.
17
0109
INSTALLATION: VENTING
DANGER
All single wall chimneys must be at least 18” from any combustible surface. Fire can
result, causing severe personal injury, death or substantial property damage.
Chimney Material:
A 6” listed type “HT” double wall chimney approved for temperatures up to 1400 °F is required.
On Unsheltered units, the Chimney Ring is sized to accept the Female (socket) end of the chimney.
Chimney Connectors: Connectors shall be installed to join the appliance to the vertical chimney unless the
chimney is attached direct. Use 6” listed type “HT” double wall chimneys or approved connectors. When installing, keep the connector as straight and short as possible. Assemble in accordance with the vent manufacturers instructions. Additional sections may be required to clear the peak of the structure. Do not install more
than one appliance per flue.
DANGER
Do not install more than one appliance per flue. Flue gas spillage and carbon monoxide
emissions can occur causing server personal injury or death.
Chimney Height: To prevent downdrafts, chimney or vent without a listed cap should extend at least 3 feet
above the highest point where it passes through a roof and at least 2 feet higher than any portion of a building
within a horizontal distance of 10 feet. A chimney or vent must not extend less than the distances stated
above. Check local codes or ordinances for additional requirements. In general:
•
Do not locate within 100 feet of any residence not served by the appliance.
•
If located between 100 to 300 feet to any residence, it is recommended that the stack be at least 2 feet
higher than the peak line of that residence.
•
Nearby structures, trees or hills can cause downdraft conditions which force smoke to the ground.
Chimney height may have to be raised to overcome downdraft conditions.
NOTE
Improper use or failure to maintain the outdoor wood boiler may cause nuisance conditions. Persons operating this outdoor wood boiler are responsible for operation of the
outdoor wood boiler so as not to cause nuisance conditions. Even proper use and maintenance of the outdoor wood boiler, and meeting the distance and stack height recommendations and requirements in State and local regulations may not always be adequate
to prevent nuisance conditions in some areas due to terrain or other factors.
ALL SOLID FUEL APPLIANCES CREATE VISIBLE SMOKE DURING SOME
OPERATING CONDITIONS
BE CONSIDERATE OF NEIGHBORING HOUSES
18
0109
INSTALLATION: TAPPING DIAGRAM
BUNG
High Temperature
Safety
1
SIZE
HOT Supply Line
1
1 ¼” F NPT (345 has two)
2
½” F NPT
Well for Digital Aquastat sensor
3
3
½” F NPT
Pressure & Temperature Gauge
4
4
¾” F NPT
Pressure Relief Valve
Watts M335: 30 psi
2
5
5
6
7
8
COLD Return Line
5
1 ¼” F NPT * (275 & 345 have two)
6
9
Fan and Shutter Assembly
7
¾” F NPT
Alternate location of Low Water
Cut Off (if used)
8
¾” F NPT
Temperature Relief Valve
Cash Acme: 210°F, 80 psi
9
¾” F NPT
Anode Rod
¾“ F NPT
10
5
¾“ M NPT
* NOTE:
10
USE
Boiler Drain Valve
Boiler Drain Valve
(Sheltered Units)
On some units the COLD Return
connections (5) are 1” F NPT.
6
Fan Mounting Mount Fan/Shutter Assembly to the appliance. Ensure that the gasket seals tightly between the
blower and the appliance flange.
WARNING
Failure to mount fan properly will result in boiler overheating.
19
0109
INSTALLATION: PLUMBING
PRESS & TEMP
GAUGE
AIR VENT
AIR SCOOP
1-1/4” x 1”
BUSHING
1” TEE with PLUG
(ALT LWCO if used)
1” TEE with FILL
CAP & Overflow
3/4” x 1” BUSHING
HOT
SUPPLY
LINE
HIGH TEMPERATURE
SAFETY
ANODE ROD
TEMP RELIEF
VALVE
WELL with
AQUASTAT SENSOR
ISOLATION
VALVE
PRESS RELIEF
VALVE
TEMP RELIEF
VALVE
Y
EXPANSION
TANK
1” ELBOWS & NIPPLES
PLUG
(LWCO if used)
DRAIN
VALVE
PUMP
1” TEE w/
DRAIN VALVE
1-1/4” x 1”
BUSHING
Z
COLD
RETURN
LINE
Standard Installation
PRESS & TEMP
GAUGE
OPEN SYSTEM
TANK
1” NIPPLE
3/4” x 1”
BUSHING
1” TEE with PLUG
(ALT LWCO if used)
1-1/4” x 1”
BUSHING
1” TEE
HIGH TEMPERATURE
SAFETY
WELL with
AQUASTAT SENSOR
HOT
SUPPLY
LINE
ANODE ROD
TEMP RELIEF
VALVE
ISOLATION
VALVE
PLUG
(LWCO if used)
Y
PRESS RELIEF
VALVE
1” ELBOWS & NIPPLES
TEMP RELIEF
VALVE
1-1/4” x 1”
BUSHING
DRAIN
VALVE
PUMP
1” TEE w/
DRAIN VALVE
COLD
RETURN
LINE
Z
Alternative Installation with Opens System Tank (Required by some State and Local Codes).
20
0109
General Plumbing: Install near boiler plumbing as suggested above. An Overflow Line should be attached
to the Fill Cap and routed to a 5 to 10 gallon pail. The Pump, Air Vent, Air Scoop and Expansion Tank can be
mounted either as shown or in the structure being heated.
Automatic Fill Valves:
An automatic fill valve is not recommended, if fill pressure is above 18 psi, the automatic fill valve would
continuously dump water out the Fill Cap diluting the anti-freeze. In some situations all the anti-freeze could
be lost. It is also more difficult to recognize a leak in a system with a valve continuously making up lost water. If an auto fill valve is installed, it is recommended that it be isolated once the system is filled and that fill
pressure be set below 18 psi.
If a feed water line and valve for adding water are incorporated, a backflow preventer is reWARNING
quired to preclude heating system water from entering the domestic system.
Transfer Line Connections:
The Transfer Lines connect at the rear of the appliance at “Y” and “Z” per the diagram above. Use connectors
appropriate for the Transfer Line being installed. The Hot Line (Supply Line) connects to “Y” and the Cold
Line (Return Line) connects to “Z”. When using Pex-Aluminum-Pex tubing for transfer lines, remember to
use the beveling tool or a pocketknife to bevel the end of the tubing. Beveling will reduce chance of damaging
the O-rings on the fittings.
Multiple Buildings
If serving multiple buildings, install TEE’s to “Y” and “Z” (see previous page) or (275 & 345) use the additional 1-1/4” bungs. The AQUA-THERM requires continuous flow when in operation. If serving multiple
buildings, ensure that at least one has continuous flow.
Relief Valve:
Before filling the system, ensure the pressure relief valve is installed. Use only a boiler
relief valve set to limit pressure to 30 psi. Failure to comply with these guidelines
DANGER
could result in failure of the relief valve to operate, resulting in possibility of severe personal injury, death or substantial property damage.
To avoid water damage or scalding due to relief valve operation:
•
Discharge line must be connected to relief valve outlet and run to a safe place of disposal. Terminate the
discharge line to eliminate possibility of severe burns should the valve discharge.
•
Discharge line must be as short as possible and be the same dimension as the valve discharge connection throughout its entire length.
•
Discharge line must pitch downward from the valve and terminate at least 6" above the floor drain where
any discharge will be clearly visible.
•
The discharge line shall terminate plain, not threaded, with a material serviceable for temperatures of
200°F or greater (copper, black pipe, galvanized or Pex-Al-Pex).
•
Do not pipe the discharge to any place where freezing could occur. Place a 5-10 gallon pail beneath
discharge piping to catch any anti-freeze should the relief valve lift. Ensure that the discharge line
ends at least 6 inches above the top of the bucket to prevent freezing.
•
No shutoff valve shall be installed between the relief valve and boiler, or in the discharge line. Do not
plug or place any obstruction in the discharge line.
• Test the operation of the valve after filling and pressurizing system by lifting the lever. Ensure the valve
discharges freely. If the valve fails to operate correctly, replace it with a new relief valve.
Low Water Cut Off (if required)
Some State and Local Codes and some Insurance Companies require a Low Water Cut Off device (LWCO)
when the heat source is installed above radiation. If required, the LWCO must be installed at a high point in
the system, in a Tee near the top of the boiler.
21
0109
INSTALLATION: ELECTRICALS
BASIC ELECTRICALS
For your safety, turn off electrical power supply at service entrance panel before making any electrical
connections to avoid possible electric shock hazard. Failure to do so can cause severe personal injury or death.
WARNING
Ensure power is shut off while making connections. Failure to do so may result in severe personal injury or death.
The pump can be located either in the structure being heated or on the appliance.
NOTICE
To ensure that the appliance always has flow when operating, it is recommended that the
pump and the appliance receive power from the same breaker. This is most important if
the pump is located remote from the appliance in the structure being heated.
WARNING
DO NOT apply power to the pump (located either in the heated structure or at the appliance) until system has been filled. The pump is water lubricated and must never be run
dry.
Electrical installation must comply with:
1. National Electrical Code and any other national, state, provincial or local codes or regulations.
2. In Canada, CSA C22.1 Canadian Electrical Code Part 1, and any local codes.
Appliance must be electrically grounded as required by National Electrical Code ANSI/NFPA 70–latest edition. Ensure ground wiring is installed per wiring diagram. Good grounding is extremely important for
proper operation.
SHELTERED UNIT
Bring 110-volt power supply to the safety switch
box (located just inside the back panel on the upper right).
•
Use 12-2 or 14-2 UF wire with ground.
•
Attach the power supply through the top of the
box by installing a cable connector.
•
Connect the black wire from power supply to one
of the main lugs at the top of the box. There is a
factory installed jumper to the bottom of the
other breaker. Ther first breaker acts as a
“Main” breaker and the second as a redundant
breaker.
•
The white wire from power supply is connected
to one screw on the aluminum bar at the side of
breaker.
•
The ground wire from the power supply is connected to the remaining screw on the aluminum
bar.
•
22
0109
INSTALLATION: ELECTRICALS (Cont.)
UN-SHELTERED UNIT
1. Bolt wiring harness junction box to angle iron next to loading door hinge on stove.
2. Connect High Temp Safety Limit. (Use conduit with red and blue wire)
a. Open Safety Limit junction box cover on top of the Stove.
b. Connect red wire to one .
c. Connect blue wire to the other terminal.
d. Replace junction box cover.
3. Connect the Fan/Solenoid Harness.
(The ECO-One there are two identical Fan/Solenoid harnesses. Route the shorter one to the front Fan junction box and the longer harness to the back Fan junction box.)
Connect fan/solenoid using conduit with red, white and green wire. Solenoid has two black wires, it does
not matter which is used.
a. Open fan/solenoid junction box cover.
b. Remove one knockout and fasten conduit to the fan/solenoid junction box.
c. Connect red wire to one black for solenoid and red wire for fan.
d. Connect white wire to one black for solenoid and white wire for fan.
e. Connect green wire to the fan /solenoid junction box.
4. Connect main power from source in building to wiring harness junction box.
a. Open main junction box cover of harness.
b. Remove lower left knock out and fasten wire to main junction box.
c. Connect main power black to the pump switch screw terminal.
d. Connect main power white to the other whites in main junction box.
e. Connect main power green to main junction box and other greens in the main junction box.
5. Place the Digital Aquastat Sensor in the sensor well.
6. Place wire nuts on the black and white wires on the pump harness. DO NOT CONNECT THE PUMP AT
THIS TIME. Power up the appliance and place the Master Switch to “ON”. The Digital Aquastat should
light. Set up the Digital Aquastat following the procedure on page 26. Once the Aquastat is set, turn off
power to the Appliance.
NOTE: The Pump will operate when the Master Switch is in the “ON” position. Operating the pump without
water in the system will damage the pump.
7. Connect pump using conduit with black, white and green wire. Pump has two white wires, it does not matter which is used.
NOTE: Grundfos pumps have “push” type connectors. Connect the black wire to the “L” and the white wire
to the “N”.
a. Open pump junction box cover.
b. Remove one knockout and fasten conduit to pump junction box.
c. Connect black wire to one white wire on pump.
d. Connect white wire to one white wire on pump.
e. Connect green wire to pump green screw in pump junction box.
23
0109
INSTALLATION: SETTING THE
ANALOG AQUASTAT
NOTICE
Some Aqua-Therm units come with Analog Aquastats and some come with Digital
Aquastats. Refer to the correct page for the model being installed.
Analog Immersion Aquastat:
1. Install the Aaquastat well into bung on top of the stove (or into
Supply piping). Ensure that it is tight enough to prevent leakage.
Do NOT tighten after controller is secured to well. Do NOT
apply force to case.
2. Loosen screw at top of case and remove cover. The white dial
inside should be set to 10°, this is the Temperature Differential.
3. Loosen 2 screws at lower bottom back. Turn angled plate so that
sensing element opening is at the bottom of Aquastat. Carefully
route sensing element through hole. Sharp bends in sensing element wire could impair operation. Now Aquastat will be vertical
when installed.
4. Insert the sensing element into the immersion well. The sensing
element MUST touch the bottom of the well.
5. Fasten Aquastat to the well with the adapter clamp on bottom of
unit. Ensure the clamp is properly positioned over the groove of
the well. Also, ensure the flange at the opening of the well fits snugly into the opening of the case.
7. Replace cover.
ADDITIONAL SAFETY CONTROLS
High Temperature Limit Control (if required): If installation is to comply with ASME or Canadian requirements, an additional high temperature limit is required. Install control in supply piping close to the appliance. Set second control to minimum 20 °F above setpoint of first control. Maximum allowable setpoint is
240 °F.
Low Water Cutoff (if required): A low water cutoff device (LWCO) is required when the heat source is
installed above radiation level or by certain state or local codes or insurance companies. If required, the
LWCO must be installed .
24
0109
25
0109
INSTALLATION: SETTING THE
DIGITAL AQUASTAT
NOTICE
For troubleshooting or specific questions, refer to the Aquastat instructions
packaged in the Literature folder.
NOTICE
The Aquastat does not come preprogrammed from the factory and must be
set up at the jobsite.
“Out” Light indicates that the Aquastat is sending power to the Blower
1.) Programming Initial Parameters:
A.) To enter Programming Mode; Press and Hold SET for 8 seconds. The access
code “00
00”
00 will be displayed.
B.) Press SET to acknowledge the access code, “SP
SP”
SP will be displayed.
C.) Press UP arrow until “r0
r0”
r0 is displayed This is the Temperature Offset.
D.) Press SET to view the value, press UP arrow until value reads “5
5”, then
press SET to accept the new value.
E.) Press UP arrow until “r2
r2”
r2 is displayed. This is the Max Aquastat Setting.
F.) Press SET to view the value, press UP arrow until value reads “180
180”,
180 then
press SET to accept the new value.
G.) Press UP arrow until “d0
d0”
d0 is displayed. This is the Aquastat Mode (Heating
or Cooling).
Ht”,
H.) Press SET to view the value, press UP arrow until value reads “Ht
Ht then
press SET to accept the new value.
I.) Press UP arrow until “t0
t0”
t0 is displayed Note: the letter “t” appears as an
upside down “F”. This is the Max Temperature that the Aquastat will display.
J.) Press SET to view the value, press UP arrow until value reads “250
250”,
250 then
press SET to accept the new value.
K.) Press SET and DOWN at the same time to exit Programming Mode or wait one minute and the display
will automatically exit.
******* IMPORTANT: COMPLETE STEP 2 FOR PROPER OPERATION! *******
2.) Entering desired Temperature:
NOTICE
Set Point (SP
SP)
SP is the only parameter the user can access without entering Programming
Mode.
A.) Press SET until “SP
SP”
SP appears on the display.
B.) Press SET again. The set point temperature is shown on the display.
C.) Press UP or DOWN arrows to desired temperature.
It is recommended to set the Aquastat at 160°F. If the House Thermostat will
not reach temperature, the Aquastat can be adjusted up to 180°F.
D.) Press SET again to accept the new value. “SP
SP”
SP appears on the display.
E.) Press SET and DOWN at the same time to exit or wait one minute and the display will automatically exit.
26
0109
LWCO or Other Safety
Devices (if used)
ECO-One: Second
Blower/Solenoid
27
0109
INSTALLATION: GENERIC SYSTEMS
The system diagrams provided are only suggested schematics for generic systems
and do not purport to show all required components necessary to meet all required
WARNING
codes. Complex systems should be designed by a professional heating system
installer.
GENRAL COMMENTS
TYPICAL PIPING AT THE APPLIANCE
Piping at the Appliance
The Piping at the Appliance does not change with most applications. In the
Applications Drawings on pages 29 to 34 it is not shown but is assumed to be as
shown on this page.
Fill Cap
Air Vent
Air Scoop
Pumps
Expansion
Tank
A Pump is required. This pump is typically located at the appliance but can
alternately be located in the structure being heated. Additionally, depending on
Pump
Transfer Line length and system design, additional pumps might be required. All
pumps must be appropriately sized for the application to ensure optimum
performance. If using isolation flanges, ensure that they are positioned so that
shut off is accessible.
Pump motors are water lubricated and can burn out if incorrectly mounted. The
motor canister must be horizontal. Body has arrow on the front that indicates
direction of flow. To rotate body, remove the four body bolts, rotate body and
replace bolts. Ensure the junction box is NOT located underneath the circulator.
When boiler is operating, pump will feel hot to the touch. This is normal.
OPEN SYSTEM TANK PIPING
Expansion Tank
Hydronic heating systems require an Expansion Tank to allow water to
expand/contract as it heats or cools without adversely affecting system
pressure. A diaphragm type Expansion Tank is recommended. The tank
can be installed in the heated structure or at the appliance. The tank
must be installed vertically, typically it is attached to the bottom of an
Air Scoop. Ensure that the Expansion Tank is large enough to handle
both the volume of the appliance and the volume of the system.
Air Elimination
Install an Air Scoop (or similar Air Separator) and Air Vent either in the
heated structure or at the appliance. Attach the Expansion Tank to the
bottom of the Air Scoop and install the resulting assembly at a high
point.
Open System Tank
If used, the Open System Tank is installed in place of the Fill Cap.
When the Open System Tank is used, the Expansion Tank, Air
Scoop and Air Vent are not necessary.
Open System Tank
Heat Exchanger
(if required)
At Appliance or
in the House
Pump
Second Pump
required with
Heat Exchanger
If the heating system is higher in elevation than the Open System Tank (or involves heat emitters on a second
floor) or if the Aqua-Therm is being connected to an existing boiler and hot water heating system, then a Heat
Exchanger is required. The Heat exchanger can be installed at the appliance or in the structure being heated.
Typically it is in the structure being heated so that the transfer lines contain antifreeze, but the existing boiler
system does not have antifreeze. Note that a pump is required on either side of the heat exchanger.
28
0109
TYPICAL SYSTEM SCHEMATICS:
CONNECTING TO AN EXISTING BOILER
CAUTION
Do not install the safety limit aquastat
on PEX or PEX-AL-PEX tubing.
Plastic does not transfer heat well as
metal and the aquastat might not
operate properly. It must be strapped
onto a copper line.
EXISTING
BOILER PUMP
CLOSELY
SPACED
TEES
Operation:
• Water circulates continuously through the AQUATHERM and the transfer lines.
• If the thermostat calls for heat, the existing boiler will
SAFETY LIMIT
start it’s pump, but the burner will not fire as long as
AQUASTAT
water temperature is above the boiler aquastat setting.
• If the temperature from the AQUA-THERM falls
below the boiler aquastat setting, the boiler will fire as
normal.
AQUA-THERM
Piping Installation:
PUMP
• Install closely spaced Tee connections (4” to 6” apart)
(Either at appliance or
between the existing boiler pump (if on the return side
in building)
of the existing boiler) and the cold return of the existing
boiler as shown in the diagram.
• Connect the “hot” line from the AQUA-THERM to the Tee closest to the return of the existing boiler.
• Connect the “cold” line from the AQUA-THERM to the Tee farthest to the return of the existing boiler.
• Mount the safety limit aquastat to hot water line close to existing boiler
• Ensure that neither the existing boiler nor the AQUA-THERM are isolated from an expansion tank.
DANGER
Do Not remove or alter the Relief Valve on the existing boiler. Failure to do so could
result in explosion causing severe injury, death or property damage.
DANGER
For your safety, turn off electrical power supply at service entrance panel before
making any electrical connections to avoid possible electric shock hazard. Failure to
do so can cause severe personal injury or death.
Safety Limit Aquastat (if used):
Turns on existing pump if boiler overheats. Set 10° higher than fan
control Aquastat on boiler, but never over 200°F. It is wired with
low voltage.
Wiring Installation:
• Route low voltage wire from ‘R’ screw and ‘W’ spade on
safety limit Aquastat into the existing relay on boiler or to zone
valve. If you have several zones in your heating system, wire
safety Aquastat to allow circulation through largest zone.
3-WAY VALVE
M
U
B
SAFETY LIMIT
AQUASTAT
SURFACE AQUASTAT
Alternative Piping:
ALTERNATIVE PIPING w/ 3-WAY VALVE
Pipe in a 3-way Zone Valve as shown, wired to an Aquastat
strapped to the Hot line from the Appliance. If AQUA-THERM temperature falls below the Aquastat setpoint
(indicating that the unit is out of wood), the 3-Way Valve will bypass water back to the unit, isolating it from
the existing boiler system.
29
0109
TYPICAL SYSTEM SCHEMATICS
HIGH TEMPERATURE FORCED AIR
CAUTION
Do not install the safety limit aquastat on PEX or PEX-AL-PEX tubing. Plastic does not
transfer heat as well as metal and the aquastat might not operate properly. It must be
strapped onto a copper line.
ISOLATION
VALVE
AIR VENT
AIR SCOOP
EXPANSION TANK
NOTICE
FORCED AIR
HEAT EXCHANGER
For simplicity, the AQUATHERM and the near appliance piping are not shown.
They are assumed to be as
shown on page 28.
ISOLATION
VALVE
SAFETY LIMIT
AQUASTAT
AQUA-THERM PUMP
(Either at appliance or in building)
TRANSFER LINES to
the AQUA-THERM
Operation:
•
•
•
Water circulates continuously between the AQUA-THERM and the Forced Air Heat Exchanger.
The Forced Air Heat Exchanger is located in the existing furnace plenum.
“New” Thermostat in the house cycles the blower on the furnace. Existing Thermostat will cycle the furnace burner if the AQUA-THERM can not keep up with the load.
Piping Installation:
•
•
•
•
Ensure that the Expansion Tank is not isolated from the AQUA-THERM.
Install the Forced Air Heat Exchanger in the plenum as close as possible to the furnace fan. Ensure that no
air is allowed to bypass the heat exchanger. The exchanger must fill the entire plenum cavity. All air from
the furnace fan must be forced through the exchanger. Baffles may need to be installed below the exchanger to direct the airflow.
Position Heat Exchanger so air won’t be trapped in the “U’s”. Drawing above is illustrative only — the
tubes should be horizontal. The hot (supply) line from boiler should enter the bottom opening on the heat
exchanger.
If the furnace has an air conditioning ‘A’ coil, the forced air heat exchanger can be placed above or below
the ‘A’ coil.
NOTICE
Dust can accumulate on the coil so it’s good to allow room for vacuuming between fan
and coil.
30
0109
TYPICAL SYSTEM SCHEMATICS
HIGH TEMPERATURE FORCED AIR
Electrical Installation:
DANGER
For your safety, turn off electrical power supply at service entrance panel before
making any electrical connections to avoid possible electric shock hazard. Failure to
do so can cause severe personal injury or death.
Existing
Thermostat
•
•
The relay and safety limit surface (strap on) Aquastat will be installed in the building being heated.
(Thermostat not included in kit.)
Mount a 4” steel junction box (not included) on side of existing forced air furnace. The relay mounts on
this box with the low voltage side exposed (side with ‘R’ & ‘G’ terminals where thermostat wires are
connected). Junction box need not be large enough to house entire relay.
CAUTION
•
•
•
•
•
•
•
•
Do not install the safety limit Aquastat on PEX or PEX-AL-PEX tubing. Plastic does
not transfer heat as well as metal and the Aquastat might not operate properly. It must
be strapped onto a copper line.
From the same line that is feeding existing furnace, route 110-volt power supply to junction box.
Connect the black wire from power supply to the two black wires from back side of relay.
Connect the white wire from power supply to white wire on relay.
The red wire from relay powers furnace fan, splice directly to wire supplying power to fan. DO NOT
connect to furnace control board, damage to the furnace control may result. The brown wire on relay is
not used, cap with a wire nut.
An additional thermostat should be installed in your living quarters. From the thermostat contacts run
low voltage wires to the ‘R’ and ‘G’ screws of relay.
Mount the safety limit Aquastat to hot water line, close to the heat exchanger.
Route a low voltage wire from ‘R’ screw on safety limit Aquastat to ‘R’ screw on relay.
Route a wire from ‘W’ spade on safety limit Aquastat to ‘G’ screw on relay.
If the existing forced air furnace is electric or has a 240-volt blower motor, a 220-volt relay may be required, rather than the 110-relay included in the standard package.
31
0109
TYPICAL SYSTEM SCHEMATICS
HIGH TEMPERATURE BASEBOARD
Do not install the safety limit aquastat on PEX or PEX-AL-PEX tubing. Plastic does not
transfer heat well as metal and the aquastat might not operate properly. It must be
strapped onto a copper line
ISOLATION
CAUTION
VALVE
AIR VENT
AIR SCOOP
EXPANSION TANK
3-WAY
ZONE VALVE
USING 3-WAY
ZONE VALVE
BASEBOARD
“UNIT”
“BYPASS”
NOTICE
“MAIN”
AQUA-THERM PUMP
For simplicity, the
(Either at appliance or in
AQUA-THERM
building)
and the near
appliance piping are
AIR VENT
not shown. They are
AIR
SCOOP
assumed to be as
EXPANSION TANK
shown on page 28.
TRANSFER LINES to
the AQUA-THERM
CLOESLY
SPACED TEE’S
USING
PRIMARY
SECONDARY
PIPING
SAFETY LIMIT
AQUASTAT
BASEBOARD
ZONE PUMP
AQUA-THERM PUMP
(Either at appliance or in building)
TRANSFER LINES to
the AQUA-THERM
SAFETY LIMIT
AQUASTAT
Operation:
• Water circulates continuously between the AQUA-THERM and the structure being heated.
• If using 3-Way Zone Valve, when the thermostat calls, the valve repositions “Main to Unit” to allow water
to flow to the Baseboard.
• If using Primary Secondary Piping, when the thermostat calls, Zone Pump turns on, allowing water to flow
to the Baseboard.
Piping Installation:
Ensure that the Expansion Tank is not isolated from the Appliance.
If using 3-Way Valve, pipe as shown above.
If using Primary Secondary Piping:
• Position closely spaced Tees 4 to 6 inches apart.
• For the Zone Pump use either a Zoning Circulator (with built-in relay) or a regular pump with a Zone
Pump Control Panel.
•
•
•
32
0109
TYPICAL SYSTEM SCHEMATICS
HIGH TEMP BASEBOARD SYSTEM
Electrical Installation:
DANGER
For your safety, turn off electrical power supply at service entrance panel before
making any electrical connections to avoid possible electric shock hazard. Failure to
do so can cause severe personal injury or death.
WIRING SHOWN ONLY
FOR 3-WAY VALVE
OPTION.
FOLLOW DIRECTIONS
BELOW FOR PRIMARY
SECONDARY WIRING
OPTION
•
The relay and safety limit surface (strap on) Aquastat will be installed in the building being heated.
(Thermostat not included in kit.)
CAUTION
Do not install the safety limit Aquastat on PEX or PEX-AL-PEX tubing. Plastic does
not transfer heat well as metal and the Aquastat might not operate properly. It must be
strapped onto a copper line.
Wiring 3-Way Valve:
• Route 110-volt power supply to transformer.
• Route wire from ‘A’ on transformer to ‘2’ on zone valve.
• Route wires from ‘B’ on transformer to ‘R’ on safety limit Aquastat and to thermostat.
• Route wire from thermostat to ‘1’ on zone valve.
• From ‘W’ on safety limit Aquastat, run wire to ‘1’ on zone valve.
Wiring Primary Secondary with a Zoning Circulator:
Route wire from thermostat to ‘R’ on safety limit Aquastat.
Route wire from ‘W’ on safety limit Aquastat to ‘1’ on Zoning Circulator.
Route wire from ‘2’ on Zoning Circulator to thermostat.
•
•
•
Safety Limit Aquastat – opens zone valve if boiler overheats. Set 10° higher than fan control Aquastat on
boiler, but never over 200°F.
33
0109
TYPICAL SYSTEM
SCHEMATICS:
LOW TEMP RADIANT or MIXED TEMP
SYSTEM
Low temperature radiant systems require some sort of
tempering device, most commonly a thermostatic
mixing valve. Low temperature and High temperature
applications can be easily accommodated by the
AQUA-THERM..
•
Zoning Circulators controlled by thermostats in
radiantly heated areas.
Mixing Valve Details:
The mixing valve MUST be piped such that a
pump “pulls” water through it.
• The best location for the pump is 10” to 12” down
stream of the “Mixed” port of the mixing valve.
Multiple pumps in parallel require check valves on the
outlet of each pump.
AQUA-THERM PUMP
•
(Either at appliance or in building)
Low Temperature Radiant:
• Recommend Primary Secondary piping be used.
•
Continuous flow between AQUATHERM and structure being
heated.
Mixed Temperature Systems:
Follow the instructions for high temperature systems as modified by the diagrams below.
Refer to the Applications Manual for specific applications.
Call Aqua-Therm Technical services with specific design questions.
•
•
•
Low Temperature Radiant
With High Temperature Forced Air
Low Temperature Radiant
With High Temperature Baseboard
•
•
•
Zoning Circulator controlled by thermostat in
radiantly heated areas.
Zoning Circulator controlled by thermostat in
baseboard heated areas.
Zoning Circulator controlled by thermostat in
radiantly heated areas.
•
•
Continuous flow through Forced Air
Heat Exchanger.
Thermostat controls blower on furnace.
34
•
Continuous flow between
AQUA-THERM and structure being heated.
0109
ACCESSORIES:
SIDEARM HEAT EXCHANGER
HOT
DOMESTIC
WATER
COLD
DOMESTIC
WATER
Kit Includes:
Water-to-Water Heat Exchanger
¾” Mix Valve
FROM SYSTEM
M
Operation:
The domestic water runs through the smooth
inner tube. Heat is transferred from the boiler
water that is running through the outer jacket.
As the domestic water starts to heat up it rises,
causing it to thermosiphon counter clockwise
through the water heater. Between the outer
and inner tubes, there is a small air chamber
which protects your domestic water supply
from being contaminated. If a leak should develop, the water would drain out the exchanger.
This assures that even with an anti-freeze solution in the AQUA-THERM, the domestic
water is safe.
The domestic water heat exchanger should be
installed vertically next to the existing water
heater.
C
H
TEE
RELIEF
VALVE
LOCATION OF
BRONZE PUMP
(OPTIONAL) TO
BOOST FLOW
THROUGH WATER
HEATER
“COLD”
TRANSFER LINE
TO AQUA-THERM
TEE
Piping Installation:
•
•
•
AQUA-THERM PUMP
(Either at appliance or in building)
DRAIN
VALVE
Pipe into the return line to the AQUA-THERM (just prior to the “cold” transfer line).
Plumb the AQUA-THERM water such that it flows in the top side port and out the bottom side port.
Connect the top and bottom copper tube into the existing water heater as shown.
DANGER
Hot water mix valves cannot be used for tempering water temperature at fixtures. Severe bodily injury (i.e., scalding or chilling) and/or death may result depending upon
system water pressure changes and/or supply water temperature changes. Anti-scald
devices should be used at fixtures to prevent possibly injury.
NOTE
Sidearm Heat Exchanger is designed to SUPPLEMENT NOT REPLACE the existing
Water Heater. DO NOT disconnect the heat source (gas, oil, electric) from the existing Water Heater. The AQUA-THERM is designed to be the primary heat source for
a structure. It is not intended to be fired for summer hot water use.
35
0109
ACCESSORIES:
EXHAUST DRAFT HOOD
Kit Includes:
1)
2)
3)
4)
5)
6)
Draft Hood
Blower Inlet Transition
Blower
Blower Outlet Transition
Adjustable Exhaust Pipe
Exhaust Termination
Operation:
Exhaust Hood mounts above the AQUA-THERM Loading Door. Blower is wired into a separate switch so
that it can be energized when loading the appliance to exhaust smoke out of the building.
Installation:
•
•
•
•
Hang the Draft Hood from the forward lifting lug.
Connect components as shown. Note that only the labeled components are included in the kit. Additional
components will be required. Use 6” galvanized as necessary.
Termination should be outside of the building, with the screen side pointing down.
Wire the Blower into a common light switch (not provided).
2
3
4
5
1
6
36
0109
START-UP: INITIAL FILLTEST
INITIAL FILL OVERVIEW:
1.) Fill and isolate AQUA-THERM.. Pressure test.
2.) Test water to determine if water treatment is necessary.
3.) Re-fill system with water and bleed air.
4.) Inspect system for leaks. Drain and repair as
necessary.
5.) Add Anti-freeze as necessary.
1. FILL, ISOLATE AND PRESSURE TEST
Though the AQUA-THERM is factory pressure tested, it
should be tested in the field to ensure that no damage has
occurred during shipping. Isolate the AQUA-THERM
from the system prior to pressure testing.
A.) Remove Fill Cap “X” (including the Fill Cap Neck) or
Open System Tank
B.) Plug the “X” Bung with a 3/4” NPT Plug.
C.) Shut Appliance Isolation Valves “A1” and “B”.
D.) Shut small cap on top of Auto Air Vent.
E.) Attach Hose to Drain Valve “C”.
G.) Connect the other end of the hose to a water source
with pressure between 30 and 40 psi.
H.) Slowly open Drain Valve “C” until test pressure on
pressure gauge reaches no more than 29 psi. The
Pressure Relief Valve “G” will discharge if pressure
exceeds 30 psi.
The person pressurizing the
Appliance must either be able to see
the pressure gauge or must be in
WARNING
direct communications with
someone who can see the pressure
gauge.
DO NOT EXCEED 45 PSI.
Failure can result in severe personal
DANGER
injury, death or substantial property
damage.
X
G
B
A1
C
A2
D
E
F
I.) Test for no longer than 10 minutes at 29 psi. Ensure constant gauge pressure has been maintained
throughout test. Check for leaks. Repair if necessary.
Leaks must be repaired at once. Failure to do so can damage boiler, resulting in
WARNING
substantial property damage.
Do not leave Appliance unattended. A cold water fill could expand as it heats up and
cause excessive pressure, resulting in severe personal injury, death or substantial
property damage.
J.) Remove Hose from water source and slowly open Drain Valve “C” to depressurize the appliance.
K.) Remove Plug from the Bung and re-install the Fill Cap Neck or Open System Tank.
The Relief Valve must be Installed in the system prior to operation. Failure can result
DANGER
in severe personal injury, death or substantial property damage.
DANGER
37
0109
START-UP: INITIAL FILL (Cont.)
2. TEST WATER QUALITY
Test system water pH to determine if water treatment is necessary. Heating System water pH of 7.0 to 8.5 is
recommended. Swimming pool pH test kits are readily available from other sources. Consult local water
treatment companies for unusually hard water areas (above 7 grains hardness) or low pH water conditions
(below 7.0). Use only water treatment designed for Hydronic systems. A corrosion inhibitor is required to be
maintained per the Warranty (see page 51).
3. RE-FILL SYSTEM WITH WATER AND BLEED AIR
It is recommended to fill the system initially with water (even if Anti-freeze will be used) unless the
temperatures are below freezing. This will make it easier to drain and refill if it is necessary to repair leaks or
bleed out air.
X
It is important to bleed air correctly when filling the
Appliance. Do not have Appliance pump running during
filling and bleeding.
A.) Shut Pump Isolation Flange “A1”. Ensure
Isolation Valve“B”, Transfer Line Isolation Valves
“E” and “F” in the house are all open.
B.)
G
B
Open both Drain Valves “C” and “D”.
C.) Open pressure relief valve “G” and open Fill Cap
“X”.
D.) Attach garden hose to drain valve “C” and turn
water on. The appliance will fill first because the
‘A1’ Pump Isolation Flange is closed. When
water comes out the relief valve “G”, close it.
When water comes out of Fill Cap “X”, re-install
it. Monitor system pressure. Shut drain valve “C”
if pressure exceeds 10 psi. If using the Open
System Tank, fill until the Sight Glass has about
1—2 inches of water showing.
E.) Water will flow through “B” filling the Transfer
Line. Water will flow past “E” and “F” filling the
other Transfer Line. When water is flowing freely
from “D”, Shut “D”.
F.) Open (do not remove) small cap on auto air vent.
10-20 gallons may be drained out before all air is out.
A1
C
A2
D
E
F
In House
G.) When the Transfer Lines are full and the system in the structure being heated are full, open “A1” and
continue to fill until the pressure gauge reads approximately 10 psi or until 1-2” of water is visible in the
Open System Tank sight glass.
38
0109
START-UP: INITIAL FILL (Cont.)
H.) Turn pump on. Verify that it is running by placing the blade of a screw driver against the pump motor,
and the butt against your ear.
The pump will circulate water and any air should escape out the auto air vent or the Open System Tank vent.
Pressure may drop from air escaping. Add more water with the garden hose. When adding more water, fill
garden hose with water before attaching to the appliance to prevent from pushing more air into system.
5. INSPECT SYSTEM FOR LEAKS
After filling the appliance and system with water, inspect all piping throughout the system for leaks. If found,
repair immediately. Repeat this inspection after the boiler has been started and the system has heated up.
WARNING
Leaks must be repaired at once. Failure to do so can damage the appliance, resulting
in substantial property damage.
WARNING
Do not use petroleum-based cleaning or sealing compounds in the heating system.
Severe damage to the appliance can occur, resulting in substantial property damage.
6. ADD ANTI-FREEZE
WARNING
Anti-freeze must be used in any systems where there is danger of freezing (ambient
temperatures below 32 degrees F). Severe property damage can result.
Use only anti-freeze made especially for hydronic systems. Inhibited propylene glycol is recommended.
WARNING
Do not use ethylene glycol, Automotive, RV or undiluted anti-freeze. Use only
Hydronic or Boiler Anti-freeze. Follow all of Anti-freeze Manufacturer’s Instructions.
Severe personal injury, death or property damage can result.
WARNING
Failure to add anti-freeze or corrosion inhibitor will void the warranty.
A.) Determine anti-freeze quantity according to system water content. AQUA-THERM water content is listed
on page 5. Remember to include system water content.
B.) A 50% solution of propylene glycol/water provides maximum protection to about -30 °F.
C.) Follow anti-freeze manufacturer's instructions.
D.) Anti-freeze Tester instructions are provided on page 44.
E.) Local codes may require back flow preventer or actual disconnect from city water supply.
F.) To add anti-freeze, drain the water from system by opening drain valve “D”.
G.) Close drain valve “D” when the proper amount of water has been drained out of the appliance.
H.) Attach discharge hose from a transfer pump to drain valve “C”. Shut value “A1”. Pump the desired
amount of anti-freeze through value “C” into the appliance.
I.) Raise system pressure to 5 to 10 psi. (cold) or to 1-2” inches of water visible in the Open System Tank
sight glass.
WARNING
Do not use an automatic fill valve in a system with anti-freeze. Glycol will leak before
the water begins to leak, causing glycol level to drop. Added water will dilute the antifreeze, reducing the freeze protection level. Severe property damage can result.
39
0109
OPERATION
FOLLOW ALL SAFETY PRECAUTIONS
START-UP: CHECKLIST
o Fill and Flush System
o
o
o
o
o
o
o
o
o
o
o
o
o
Pressure Test Boiler
Inspect System Piping
Verify Water Chemistry/pH
Verify Anti-freeze Concentration
Open all Isolation Valves
Verify Pump Running
Verify Relief Valve Installed and Operational
Verify Chimney is Installed and Clear
Inspect door gasket
Inspect door tightness
Verify Aquastat operation
Verify proper blower operation
Review all safety precautions
BEFORE STARTING A FIRE
• Verify “START-UP CHECKLIST” is complete.
• ENSURE the isolation valves are open.
• Start the Pump . The pump is lubricated with water. DO NOT run dry.
• Cycle the fan to check for proper draft fan operation.
• Ensure the Shutter on the Draft Fan in the back of the appliance closes properly when the fan is stopped.
• Inspect the Loading Door gasket before lighting the first fire and a few days after, looking for any
indications of a poor seal.
FUEL SELECTION
Burn only split cordwood that has been seasoned for 12-18 months. Burning unseasoned wood is wasteful and
inefficient using much of the combustion energy to boil off the excess moisture. Ideally the wood should be
split to aid in seasoning and should be around 25% moisture content by weight.
The following are general guidelines for wood selection:
• Hardwoods burn better than softwoods.
• Larger pieces burn better than small pieces.
• 25% moisture content is optimum:
Higher moisture content wastes energy boiling off water.
Lower moisture content burns rapidly and inefficiently.
40
0109
OPERATION (Cont.)
DANGER
DO NOT use gasoline, kerosene or other flammable liquids. To do so could cause a
flash fire or explosion resulting in serious personal injury and property damage.
WARNING
DO NOT BURN GARBAGE, HOUSEHOLD WASTE OR YARD WASTE. In
most areas this is illegal. The unit is designed to burn seasoned cord wood, burning
other materials can reduce the life of the unit and will void your warranty.
FUEL STORAGE
Locate the appliance to provide access to wood supply.
Wood should be split, stacked and seasoned for one year prior to use.
Wood should not be stored within the minimum clearance to combustibles stated on page 10.
Ensure that wood storage does not impede maintenance access to the sides or back of the appliance.
While placing the appliance in a site built structure allows space for storing some wood, the wood still
must not be stored within the minimum clearances to combustibles or such that it restricts access for
maintenance of the appliance.
•
•
•
•
•
LIGHTING THE INITIAL FIRE
A.) Build a SMALL fire. Allow the water temperature to rise. When the water temperature reaches 120°F, set
the draft control Aquastat to 110°F. The draft fan should stop and the shutter close. Reset to operating
temperature of 160 - 180°F.
B.) If a safety limit Aquastat is used, set the safety limit Aquastat below water temperature. In a hot water
baseboard system the zone valves should open and the circulating pump should start. In a forced air
system the furnace fan should start. Reset to 10° higher than fan control Aquastat setting. Never set safety
limit Aquastat higher than 200°F.
C.) Monitor water pressure or water level if using the Open System Tank. Maintain about 18 psi (hot water
pressure) by adding water as air is purged from the system. It may take several days operation to purge all
the air. ENSURE the vent opening on the automatic air vent is clear and the cap is loose to allow air to
escape. This vent always stays open with the cap halfway unthreaded.
Fill stove to about 10 psi (cold) pressure will rise as system temperature rises maintain
18 psi (hot). If using Open System Tank maintain about 1-2” in sight glass (cold) and 67 “ (hot).
Condensation in the firebox will occur for the first 3 or 4 days of operation resulting in water or water/creosote
combination running out of the ash door. This should clear up in less than a week. You may want to place a
pan under ash door to keep concrete clean.
NOTE
Firing the AQUA-THERM
•
•
•
•
•
•
NEVER start a fire without water in the system. Damage to the appliance and controls will result.
Load the appliance with regard to the required heat load. On mild days, load less fuel in to the appliance.
A small, intense fire will burn cleaner, more efficiently and with less creosote formation than a large
smoldering fire.
Do not load the appliance above the top of the loading door.
Start the fire with crumpled paper and kindling beneath the logs.
Close the door securely.
Turn the draft fan on.
41
0109
OPERATION (Cont.)
•
•
•
The AQUA-THERM will maintain water temperature based on the Aquastat settings.
Heated structure temperature is controlled by a thermostat in the structure.
The Loading Door and Ash Removal Door must tightly shut and the seals maintained in good condition
during operation, otherwise overheating will occur.
When loading:
• Place FAN switch in OFF position.
• Open Loading door – pausing momentarily between the first latch and the safety latch to allow any
combustion gases to burn off.
The AQUA-THERM will not operate without electrical power. The combustion air
WARNING
shutter MUST NOT be manually opened or altered for any reason; overheating will
result.
WARNING
Loading Door and Ash Door must be closed and latched during operation. Failure to
latch door will result in overheating which could damage the appliance and controls.
In the event of overheating
A.) The High Temperature Safety will shutdown the Blowers until temperature at the Safety falls below
150°F. The Pump will continue to run. The Temperature Relief Valve will open at 210°F , ensure that it
discharges to a suitably sized container (usually 5 to 10 gallons).
B.) Manually turn off the draft fan at the fan switch (place switch in “OFF” position).
C.) Do not turn off pump.
D.) Turn the thermostats fully up in the structure being heated by Aqua-Therm to remove heat from the unit as
fast as possible.
E.) Allow the appliance to cool down.
F.) If the Aqua-Therm does not cool down then, with a shovel, remove as much of the wood and coals from
the firebox. Place the removed wood and coals away from combustibles.
G.) Once the unit has cooled down and the Temperature Relief has shut:
• Determine and correct the cause of the overheating
• Refill the system if necessary
Creosote Formation
All wood burning devices create some creosote. Creosote vapors condense and accumulate in the relatively
cool chimney flue. When ignited this creosote makes an extremely hot fire. It is better to build a small,
intense fire than a large smoldering one that will create more creosote. The chimney connector and chimney
should be inspected at least monthly during the heating season to determine if a creosote buildup has occurred.
If creosote has accumulated it should be removed to reduce the risk of a chimney fire.
In the event of a chimney fire:
A.) Manually turn off the draft fan at the fan switch (place switch in “OFF” position).
B.) Leave the doors securely closed.
C.) Do not turn off pump.
Disposal of Ashes
Ashes should be placed in a metal container with a tight-fitting lid. The closed container of ashes should be
placed on a noncombustible surface, well away from all combustible materials, pending final disposal. If the
ashes are disposed of by burial in soil or otherwise locally dispersed, they should be retained in the closed
container until all cinders have thoroughly cooled.
42
0109
MAINTENANCE
Keeping the AQUA-THERM in good repair will result in more efficient operation and longer appliance life.
You are responsible for safely maintaining the unit. Follow the Service and Maintenance procedures given
throughout this manual and in component literature shipped with the appliance.
DANGER
Failure to perform the service and maintenance could result in damage to the boiler or
system. Failure to follow the directions in this manual and component literature could
result in severe personal injury, death or substantial property damage.
DAILY:
• Grates – For best performance level the coal distribution on the grates prior to each loading. (A garden
hoe works well). There should be very little ashes on top of the grates. Ash build up will restrict air going
through the grate, promoting incomplete combustion and creosote formation.
• Auger out ashes - Ashes should be augured out daily. Excessive buildup of ashes in the ash trough will
eventually plug up the unit. (An oil change pan works well to catch ashes).
MONTHLY:
• Check above upper baffle for soot and creosote. Clean when soot layer is greater than 1/8 inch. Blow out
with compressed air. Wear eye protection and a dust mask when blowing out the unit.
• Examine door gasket and draft fan shutter. Ensure airtight seal. Replace as required.
EVERY THREE MONTHS:
• Clean heat exchanger and baseboard radiators. Dust and dirt buildup reduces heat transfer.
• Blower motor: Place a few drops of S.A.E. 20 motor oil in each of the two oil cups.
WARNING
Use only S.A.E. 20 motor oil to lubricate the motor. Do not use universal household
oils. Motor could be damaged, resulting in possible severe property damage.
END OF SEASON:
• Power: Turn off power supply at the appropriate circuit breaker.
• Chimney: Clean and inspect chimney. Cap the chimney to keep rain water out.
• Firebox & Ash trough: Remove ashes, soot, and hardened deposits from the fire chamber by using putty
knife or wire brush. Coat inside of firebox with a light coat of motor oil to protect steel during the off
season.
• Doors: Oil door hinges and latch guide.
• Plumbing: Shut all Isolation Valves. Ensure transfer line connections are tight.
WARNING
Moisture from rain or condensation must not be allowed to accumulate in the firebox or
ash pan during the off season. Failure to perform preventive maintenance may result in
corrosion damaging the boiler resulting in possible severe property damage.
43
0109
MAINTENANCE (Cont.)
BEGINING OF SEASON:
• Chimney: Remove cap from chimney. Inspect chimney. Ensure chimney is not blocked (check for animal
or bird nests).
•
Loading Door: Oil door hinges and latch. Tighten Handle Nut. Inspect Gaskets. Verify that door seals
tightly (apply thin coat of lipstick to loading flange, shut door, reopen and inspect marking on the gasket).
• Plumbing: Open all Isolation Valves. Ensure 1” fittings on both ends of tubing are tight. Ensure that all
system Isolation valves are open.
• Pump: The circulator shipped with the appliance is water-lubricated. No oiling is required. Check other
circulators in the system. Oil any circulators requiring oil, following circulator manufacturer’s instructions.
Over-oiling will damage the circulator.
• Blower motor: Place a few drops of S.A.E. 20 motor oil in each of the two oil cups.
WARNING
•
Use only S.A.E. 20 motor oil to lubricate the motor. Do not use universal household
oils. Motor could be damaged, resulting in possible severe property damage.
Pressure: Verify cold pressure is approximately 5 psi. Fill if necessary.
•
Water Chemistry: Verify heating system water pH of 7.0 to 8.5. Adjust as necessary. Add corrosion
inhibitor package to raise pH.
• Anti-freeze: Verify Anti-freeze percentage. Add as necessary.
In accordance with the Aqua-Therm warranty any hydronic system requires a minimum of 30% glycol.
Directions for using the provided Antifreeze Tester:
• When the percentage is at 30% propylene and 70% water the blue ball should float
and the red one should sink.
• If the mixture is over 30% propylene the red ball will start to float.
• If blue ball sinks the mixture is not strong enough (less than 30%).
Failure to comply with manual and testing voids warranty.
*Note- These balls have temperature compensation built into them, ambient temperature does not affect the test.
•
•
•
•
•
•
•
Corrosion Inhibitor: Verify level per manufacture's instructions..
Power: Turn on power supply at the appropriate circuit breaker. Ensure that the pump is running.
Aquastat: Inspect and test the Aquastat. Verify operation by turning Aquastat temperature below the
appliance temperature. The AQUA-THERM should cycle off. Return Aquastat to original setting.
Air Vents: Inspect automatic air vents . The cap must be unscrewed one turn to allow air to escape. If the
air vent is leaking, remove cap and briefly push valve and then release to clean the valve seat. Replace cap
by twisting all the way onto valve and then unscrewing one turn.
Start-up: Review Start-up Checklist and Start-up Procedures.
Safety: Review all Safety Precautions.
Housekeeping: Verify that area is free of any combustible materials, gasoline and other flammable
vapors and liquids or rags.
WARNING
WARNING
Do not use petroleum-based cleaning or sealing compounds in the heating system.
Severe damage to the heating system will occur, resulting in substantial property damage.
Eliminate all system leaks. Continual fresh makeup water will reduce appliance life.
Minerals can build up in the appliance, reducing heat transfer, overheating the metal.
Leaking water may also cause severe property damage.
44
0109
MAINTENANCE (Cont.)
DANGER
Electrical shock hazard — Turn off power to the appliance before any service
operation on the appliance except as noted otherwise in this instruction manual. Failure
to turn off electrical power could result in electrical shock, causing severe personal injury
or death.
Pressure (Safety) Relief Valve
DANGER
Failure to re-inspect the Pressure Relief Valve as directed could result in unsafe pressure
buildup, which can result in severe personal injury, death or substantial property damage.
AT LEAST ONCE A YEAR: Safety Relief Valves must be operated to ensure that waterways are clear.
Certain naturally occurring mineral deposits may adhere to the valve, rendering it inoperative. When manually
operating the lever, water will discharge and precautions must be taken to avoid contact with hot water and to
avoid water damage. Before operating lever, check to see that a discharge line is connected to this valve
directing the flow of hot water from the valve to a proper place of disposal otherwise severe personal injury
may result.
If no water flows, valve is inoperative. Shut down the appliance until a new relief valve has been
installed.
AT LEAST ONCE EVERY THREE YEARS: Safety Relief Valves should be re-inspected by a licensed
plumbing contractor or authorized inspection agency, to ensure that the product has not been affected by
corrosive water conditions and to ensure that the valve and discharge line have not been altered or tampered
with illegally.
Certain naturally occurring conditions may corrode the valve or its components over time, rendering the valve
inoperative. Such conditions are not detectable unless the valve and its components are physically removed and
inspected. This inspection must only be conducted by a plumbing contractor or authorized inspection agency —
not by the owner.
VERIFY SYSTEM PRESSURE FOLLOWING TESTING OF RELIEF VALVES. ADD WATER TO
SYSTEM AS NECESSARY.
DANGER
Failure to inspect and repair the above conditions can result in severe personal injury
or death.
45
0109
TROUBLESHOOTING
A. PROBLEM: Losing Pressure in System.
1. It is normal for pressure to vary with temperature.
2. Air bleeding out of system will cause pressure loss. When the appliance is first filled, it may take 3-4
days to purge all the air. Add water as needed until pressure stabilizes.
3. If pressure consistently drops, it indicates a leak in system. Check joints, fittings, relief valves, etc.
B. PROBLEM: Unit overheats.
1. Air leaks in the fire box can cause appliance to overheat. Ensure loading and ash door are sealing
properly. Inspect door misalignment, worn gaskets or door handle nut looseness.
2. Draft fan shutter may not be operating properly. When the fan stops, the shutter should drop down
completely covering fan intake.
3. Fan control Aquastat. Fan control Aquastat must not be set over 180°F. The Safety Aquastat is not
adjustable and is set at 190°F.
4. Water is not circulating. If pump is not running or an isolation valve is shut, or an air lock is stopping
circulation, appliance can overheat.
5. A backup power supply is recommended if frequent power outages are expected.
C. PROBLEM: Not Enough Heat in the structure being heated.
If the appliance reaches operating temperature and draft fan shuts off, it is working properly. (If draft fan
does not shut off, see Problem D.) Check the following:
1. System water flow rate too low. This can be caused by:
a.
b.
c.
d.
Transfer Lines are too small in diameter.
Distance between the appliance and the heating system too great for the pump in use.
The circulating pump may not have enough capacity.
The system could be air bound. (See Problem E.)
2. The fan control Aquastat may be set too low. Set Aquastat up 10° but not over 180°F.
3. The house heating system may not be extracting enough heat from the water. Dust buildup on the
baseboard fins or forced air heat exchanger system will reduce heat output.
4. The house heating system may not have enough capacity. More baseboards may need to be added to a
hot water system. In a forced air system, more airflow through the heat exchanger will boost output.
5. Heat is being lost through underground pipes. Temperature coming into house should be no more than
2-3° different than temperature of water leaving the appliance.
To check for a flow problem, call your local Aqua-Therm Representative. Have the following information
available: BTU need of home. If your existing furnace was adequately heating the home, look on furnace
for BTU rating, diameter and length of underground pipe, model number of circulating pump and information from page 2 of this manual.
46
0109
TROUBLESHOOTING (Cont.)
D. PROBLEM: Water Temperature Does Not Reach Fan Control Aquastat Setting. (Draft fan runs
continuously.)
1.
2.
3.
4.
5.
6.
Wood may be too wet or green. Try mixing woods.
Check for obstructions in draft fan.
A partially clogged chimney may be restricting air flow in the appliance.
A buildup of ashes in the ash trough can restrict the exhaust of combustion air.
A buildup of ashes on top of the grates can restrict combustion air.
A buildup of creosote in the ash trough could plug the fan opening in the back, restricting combustion
air.
7. Heat is being lost through underground pipes. Temperature coming into house should be no more than
2-3° different than temperature of water leaving the appliance.
7. Appliance is undersized for building being heated.
8. Pump undersized.
E. PROBLEM: No Water Flow
1. Air could be trapped in the line.
a. Repeat filling and venting procedure on page 37.
b. Temporarily add more water to system to bring pressure to around 15 lbs; the increased
pressure will push air out of the Fill Cap. The Fill Cap will automatically bring pressure
back to 18 psi or lower.
2. Pump is not running. You should be able to feel the vibration of pump when it’s running.
a. Defective pump - check if installed properly (See page 28.) If installed incorrectly, pump
will burn out. With 180° water circulating through pump, it will be hot to the touch.
b. Pump is not wired correctly. Refer to wiring diagram. (See page 25 or 27.)
3. Pump flanges are closed. Flanges are open when screw slot is parallel with the pipe.
4. The system is frozen somewhere.
F. PROBLEM: Excessive Creosote is Building up in Ash Trough.
1. Ash build up above grates or in ash trough area will cause restrictions in combustion air.
2. Appliance may not be burning hot enough.
a. Set fan control Aquastat to 180°F.
b. Set differential on fan control Aquastat to 20°. (See page 24 or 26.) This will let water temperature drop 20° before fan is started, causing a longer burn cycle.
3. Burning small pieces of extra dry wood can cause creosote. Try burning large pieces of wood
for a few days.
4. If problem persists call your local Aqua-Therm Representative.
47
0109
REPLACEMENT PARTS
1
2
6
7
3
4
5
8
11
10
9
15
18
16
12
13
14
17
22
20
19
23
24
21
31
29
26
28
25
30
32
27
48
0109
REPLACEMENT PARTS LISTING
Units
1 145 (AT)
275/345 (AT)
P/N
20102
20103
2 145 E-1
Description
Upper Baffle
Aqua-Therm
50002
3
ALL
20156
Grate Section
4
ALL Unsheltered
30139
Loading Door Handle
All Sheltered
40605
6
40550
275/345 (AT/E-1)
40551
145 (AT)
20141
275/345 (AT)
20142
7 145 (E-1)
275/345 (E-1)
50004
30123
Ash Door Gasket
10 ALL
30124
Ash Door Latch
11 145 (AT/ E-1)
20111
Loading Door Gasket
30149
Temperature Relief
13 ALL
30100
Pressure Relief
14 ALL Unsheltered
30101
Pressure Temp Gauge
(Bottom Mount)
30146
Pressure Temp Gauge
(Back Mount)
15 ALL
30111
Air Vent
16 ALL
40274
Air Scoop, 1” F NPT
30110
Air Scoop, 1-1/4” F NPT
30108
Expansion Tank
275/345 (AT/E-1)
25 145 (AT/E-1)
20100
100 cfm Fan Assembly
20101
140 cfm Fan Assembly
26 ALL
20164
Shutter Assembly
27 145 (AT/E-1)
20159
100 cfm Fan
20160
140 cfm Fan
28 ALL
30145
Shutter Spring
29 ALL
30104
Pump, Taco 007
ALL
30154
Pump, GF 15-58
30 ALL
40273
Isolation Pump Flange
Set (1” F NPT)
30106
Isolation Pump Flange
Set (1-1/4” F NPT)
31 ALL AT
30164
Wiring Harness
ALL E-1
50007
32 ALL
30128
Ash Auger Crank
Not Pictured
ALL
30153
Auger Roll Pin
145 (AT/E-1)
20129
Fan Gasket, 100 cfm
275/345 (AT/E-1)
20131
Fan Gasket, 140 cfm
145 (AT/E-1)
40131
Insulation Kit
275 (AT/E-1)
40132
345 (AT/E-1)
40133
All Unsheltered
40244
Boiler Drain, 3/4 M NPT
All Sheltered
40248
Boiler Drain, 3/4 F NPT
ALL
30114
Surface Aquastat
ALL
30107
110 Relay
145 (AT/E-1)
20138
Auger
275/345 (AT/E-1)
20139
ALL
30102
Fill Cap
40602
20 ALL
21 ALL
Aquastat Well
30109
18 ALL
19 ALL
30103
20112
12 ALL
17 145 (AT/E-1)
24 ALL
275/345 (AT/E-1)
Loading Door
ECO-One
9 ALL
Digital Aquastat
(w/ 6’ sensor)
Aquastat Sensor, 6 ft
275/345 (AT/E-1)
Ash Door
Description
Aquastat Sensor, 10 ft
Loading Door
Aqua-Therm
20130
ALL Sheltered
35002
23 ALL
Lower Baffle
8 ALL
275/345 (AT/ E-1)
P/N
22 ALL
Upper Baffle
ECO-One
275/345 (E-1)
5 145 (AT/ E-1)
Units
Open System Tank
High Temp Safety
30144
Solenoid
49
Analog Aquastat
0109
NOTES
50
0109
Lifetime Limited Warranty
On Aqua-Therm Outdoor Wood Only Burning Stoves
With Stainless Steel Firebox
Five Year Warranty on Outdoor Coal Burning Stoves with Stainless Steel Firebox and Shaker Grates
Aqua-Therm outdoor wood/coal burning stoves are warranted by Aqua-Therm LLC to the original user against
defects in workmanship under normal use for life, from the date of purchase.
This warranty is subject to the condition that the Aqua-Therm Product(s) must have been installed in accordance
with manufacturers’ instructions. This warranty is extended only to the first retail purchaser of the product and only
to a product that has not been moved from its original installation site. Any warranty claims on outdoor burning
stoves or component parts should be reported to the Aqua-Therm dealer from whom the product(s) were
purchased. Any wood or coal stove which is determined to be defective in material or workmanship within the first
five (5) years and returned to Aqua-Therm, freight prepaid, will be repaired or replaced at Aqua-Therm’s option at
no charge to you. On wood burning stoves only in years six (6) through the life of the product, Aqua-Therm will
pay a prorated share of any repair or replacement cost. The proportionate charge will be equal to the appropriate
percentage of the list price of the product at the time the warranty claim is made, and will be determined as
follows: 6th & 7th years – 25 %; 8th & 9th year – 15%; 10th year and beyond – 10%.
All components: grates, fans, baffles, pumps, aquastats, relays, gauges, relief valves, expansion tanks, heat
exchangers, etc. are warranted by their manufacturers. In addition, Aqua-Therm warrants the original factory
installed components for 1 year from date of purchase.
In addition to the warranty above the Aqua-Therm warranty does not cover:
1. Components that are part of the heating system (products) but were not furnished by Aqua-Therm as a part
of the heating system (products).
2. The workmanship of any installer of Aqua-Therm product(s). In addition, this warranty does not assume any
liability of any nature for unsatisfactory performance caused by improper installation.
3. Any costs for labor for removal and reinstallation of the alleged defective stove or part, loss of anti-freeze,
transportation to and from Aqua-Therm, if necessary, and any other materials necessary to perform the exchange.
4. Any products that have a failure or malfunction resulting from improper or negligent operation, accident, abuse,
freezing, over-heating, poor water quality, misuse, improper adjustments, control settings, unauthorized alteration
or improper repair or maintenance.
Information is in the installation manual and other printed/technical information provided with the product or direct
from Aqua-Therm or www.aqua-therm.com.
NOTE: THE WARRANTY DESCRIBED HEREIN IS IN LIEU OF ALL OTHER WARRANTIES, EXPRESS OR IMPLIED,
INCLUDING BUT NOT LIMITED TO ANY IMPLIED WARRANTIES OF FITNESS FOR A PARTICULAR PURRPOSE AND
MERCHANTABILITY. AQUA-THERM EXPRESSLY DISCLAIMS AND EXCLUDES ANY LIABILITY FOR CONSEQUENTIAL,
INCIDENTAL, INDIRECT OR PUNITIVE DAMAGES FOR BREACH OF ANY EXPRESS WARRANTY. For prompt product
warranty claims, notify the Aqua-Therm dealer from whom the product was purchased. If this action does not result in warranty
resolution, contact Aqua-Therm, P.O Box 250, Spicer, Minnesota, 56288, with details in support of the warranty claim. Alleged
defective part(s) must be returned through the same dealer channel in accordance with the Aqua-Therm procedure currently in
force for handling returned goods for the purpose of inspection to determine cause of failure. Aqua-Therm will furnish new
part(s) to an authorized Aqua-Therm dealer who, in turn will furnish the new part(s) to the purchaser. If there are any questions
about the coverage of this warranty, contact Aqua-Therm at the address above.
Corrosion inhibitor and/or hydronic boiler antifreeze must be used and maintained for warranty to remain in effect.
This necessitates annual testing (at least once yearly) and adjust (if necessary) the corrosion inhibitor balance.
*Extended Warranty Option Available on Outdoor Wood Only Burning Stoves
-Contact Dealer for Details
Owner’s registration card must be completed and returned to Aqua-Therm
within 30 days from purchase for warranty to be in effect.
51
0109
52
0109
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