U S Boiler AL27SL Hydrastone lined Indirect Water Heater Instruction Manual
- June 13, 2024
- U S Boiler
Table of Contents
AL27SL Hydrastone lined Indirect Water Heater
Alliance SL Installation, Operating & Service
Instructions
Product Information
The Alliance SL is a hydrastone-lined indirect water heater
designed for both residential and commercial use. It is available
in the following models: AL27SL, AL35SL, AL50SL, AL70SL, and
AL70CSL.
Manual Contents
- 1. General Information
- 2. Specifications & Ratings
- 3. Installation Guidelines
- 4. Installation Checklist
- 5. Service Information
- 6. TPI Control Diagrams
- 7. Installation Piping Figures
- 8. Top Mount Coil Details & Tightening Sequence
- 9. Circulator & Burner Control Wiring Diagrams
- 10. Zone Valve Wiring Diagrams
- 11. Switching Relay Wiring Diagrams
- 12. Service Parts
- 13. How to Obtain Service Assistance
- Warranty
Installation Instructions
To fully understand the purchaser’s responsibilities for
installing the water heater, please read the warranty. Follow the
steps below for a safe installation:
-
Affix these instructions adjacent to the indirect water
heater. -
Retain these instructions for future reference.
-
Call your heating contractor for service or repairs to the
water heater. -
Provide the Model Number and Serial Number as shown on the
Rating Label when seeking information on the water heater.
The Alliance SL is not warranted for high temperature
applications such as wood stoves or applications that supply steam
to the heat exchanger coil. Using the product in such a manner will
automatically void the warranty. The water heater can be used with
any steam boiler as long as hot water is supplied to the indirect
water heater as prescribed in the manual.
It is important to note that there is a risk of property damage
and personal injury associated with the use of any hot water
system. The Company cannot supervise the installation, so it is the
customer’s responsibility to ensure that the installation and use
of this product are performed in accordance with safe guidelines
and proper local or national codes.
Only qualified installers should perform the installation. A
qualified installer is someone who has licensed training and a
working knowledge of the applicable codes, regulations, tools,
equipment, and methods necessary for the safe installation of a
boiler system and an indirect water heater.
Refer to the provided installation checklist to ensure that all
procedures for a safe installation have been followed.
Alliance SL Installation, Operating & Service Instructions
Installation, Operating and Service Instructions for
ALLIANCE SLTM
Hydrastone-lined Indirect Water Heater
Models: AL27SL AL35SL AL50SL AL70SL AL70CSL
Residential & Commercial
Manual Contents
Page
1. General Information . . . . . . . . . . . . . . . . . . . . . . . . . .2
2. Specifications & Ratings . . . . . . . . . . . . . . . . . . . . . .3
3. Installation Guidelines . . . . . . . . . . . . . . . . . . . . . . . .5
4. Installation Checklist. . . . . . . . . . . . . . . . . . . . . . . . . .8
5. Service Information . . . . . . . . . . . . . . . . . . . . . . . . . . .9
6. TPI Control Diagrams . . . . . . . . . . . . . . . . . . . . . . . .11
7. Installation Piping Figures . . . . . . . . . . . . . . . . . . . .13
8. Top Mount Coil Details & Tightening Sequence . . .15
9. Circulator & Burner Control Wiring Diagrams . . . .16
10. Zone Valve Wiring Diagrams . . . . . . . . . . . . . . . . . . .17
11. Switching Relay Wiring Diagrams . . . . . . . . . . . . . .18
12. Service Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
13. How to Obtain Service Assistance. . . . . . . . . . . . . .21
Warranty. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
To fully understand the purchaser’s responsibilities for installing the water heater, please read the warranty.
TO THE INSTALLER:
Affix these instructions adjacent to indirect water heater.
TO THE CONSUMER:
Retain these instructions for future reference.
For service or repairs to the water heater, call your heating contractor. When seeking information on the water heater, provide Model Number and Serial Number as shown on Rating Label.
110044336622–0088 — 11//2233
1
1 General Information
Alliance SL Installation, Operating & Service Instructions
PLEASE READ INSTRUCTIONS CAREFULLY BEFORE INSTALLING WATER HEATER
U.S Boiler Company, LLC (herein called the Company) intends that this
Alliance SLTM IndirectFired Water Heater be used as a separate zone to a
heating system boiler.
The company specifically does not warrant this tank for high temperature
applications such as wood stoves or applications that supply steam to the
Alliance SL heat exchanger coil. Such use of this product will automatically
void the warranty. The Alliance SL can be used with any steam boiler as long
as hot water is supplied to the indirect water heater as prescribed in this
manual.
The design anticipates the proper installation and care in use of the product.
There is risk of property damage and personal injury inherent in the use of
any hot water system. The Company cannot supervise the installation and
therefore makes it a specific condition of the warranty that the customer will
supervise the installation and use of this product to be sure they are
performed in accordance with safe guidelines and proper local or national
codes.
Generalized instructions and procedures cannot anticipate all situations. For
this reason, only qualified installers should perform the installation. A
qualified installer is a person who has licensed training and a working
knowledge of the applicable codes, regulations, tools, equipment and methods
necessary for safe installation of a boiler system and an indirect water
heater.
An installation checklist has been provided to help the customer ensure that
all procedures for a safe installation have been followed.
If questions regarding installation arise, check with your local plumbing and
electrical inspectors for proper procedures and codes. Local codes take a
precedent over instructions in this manual.
2
104362-08 – 1/23
Alliance SL Installation, Operating & Service Instructions
2 Specifications & Ratings
The Massachusetts Board of Plumbers and Gas Fitters has approved the Alliance
SLTM Indirect-Fired Water Heater. See the Massachusetts Board of Plumbers and
Gas Fitters website, http://license.reg.state.ma.us/pubLic/pl_
products/pb_pre_form.asp for the latest Approval Code or ask your local Sales
Representative. The Commonwealth of Massachusetts requires this product to be
installed by a Licensed Plumber or Gas Fitter.
Rating Label Specifications
Model
Storage (gallons)
First Hour Ratings (gal/hr.)
Continuous Draw
(gal/hr.)
Standby Loss (°F/hr.)
Heat Source Friction Loss
(ft. w.c.)
Minimum Heat Source Output
(Btu/hr.)
Minimum Heat Source Flow Rate (gpm)
AL27SL
26
192
170
1.0
18.0
106000
8
AL35SL
35
200
170
0.7
18.0
106000
8
AL50SL
50
225
180
0.6
19.0
117000
8
AL70SL
69
294
230
0.5
25.1
128000
8
AL70CSL 69
365
305
0.6
20.0
178000
14
Note:
1. First Hour Rating is the sum of the First Draw and Continuous Draw Ratings.
2. Ratings based on 77°F DHW temperature rise (135°F outlet temperature) and 180°F boiler supply temperature.
The ratings were obtained at the heat source (boiler) output rates and heat source flow rates shown. Other results
will be obtained under different conditions.
Additional Performance Specifications
Performance Specifications
Model
First Hour (Gal/hr.)
Boiler Output
Boiler Water Continuous Standby
(6 GPM @ 200°F)
Flow
Heat Loss
AL27SL
115°F 295
140°F 225
(BTU/hr.) 150,000
Flow Rate (Gal/min.)
6
Head Loss (ft. w.c.)
7
(°F/hr.) 0.78
AL35SL
300
230
150,000
6
7
0.72
AL50SL
320
250
150,000
6
7
0.56
AL70SL
340
270
150,000
6
7
0.45
AL70CSL
475
385
235,000
14
14
0.45
Based on: 50°F inlet water temperature 200°F boiler supply to coil Outputs may
vary depending on boiler size, boiler water supply temperature, flow rate
through
coil, and circumstances of installation and use.
104362-08 – 1/23
3
Alliance SL
2 Specifications & Ratings (continued)
Installation, Operating & Service Instructions
Model
AL27SL AL35SL AL50SL AL70SL AL70CSL
Physical Specifications
Height (in.)
Diameter (in.)
Shipping Weight (lbs.)
39-1/4
20
172
39-1/4
22-3/4
185
40-3/4
26
238
45-3/4
28
290
45-3/4
28
290
Connections (NPT)
Cold Water Hot Water
Inlet
Outlet
To Boiler
From Boiler
3/4 M 3/4 M 3/4 M 3/4 M 1-1/2 M
3/4 F 3/4 F 3/4 F 3/4 F 1-1/2 M
3/4 M 3/4 M 3/4 M 3/4 M 1 M
3/4 M 3/4 M 3/4 M 3/4 M 1 M
T&P Valve
3/4 F 3/4 F 3/4 F 3/4 F 3/4 F
4
104362-08 – 1/23
3 Installation Guidelines
Alliance SL Installation, Operating & Service Instructions
A. INSPECTING AND PREPARING THE WATER HEATER · Remove the cardboard box, which comes packaged with the heater. It should contain the following: TPI thermostat, T&P valve and a “Tee”, foamed lid and screws.
B. LOCATION · Do not place the water heater where there is a risk of property
damage in the event of a leak. · Place the water heater on a solid foundation
in a clean, dry location nearest the boiler. · The water heater should be
protected from freezing and water lines should be insulated to reduce energy
and water waste. · Leave sufficient headroom to service the heat exchanger and
electrical controls. · Do not install in an area where flammable liquids or
combustible vapors are present. · CAUTION: The water heater’s outer jacket is
plastic and can melt. · Do not install in close proximity to wood burning
stove or other high temperature apparatus.
NOTE: If Water Heater is Placed On Blocks To Raise It From The Floor, Be Sure
to Support The Entire Bottom With At Least ¾ in. Plywood On The Top Of The
Blocks. 3/4″ x 28″ x 28″ Plywood
Solid Blocks Under Plywood
C. PROTECTION FROM WATER DAMAGE
· CAUTION: All water heaters have a risk of leakage at some unpredictable
time.
· IT IS THE CUSTOMER’S RESPONSIBILITY TO PROVIDE A CATCH PAN OR OTHER ADEQUATE
MEANS, SO THAT THE RESULTANT FLOW OF WATER WILL NOT DAMAGE FURNISHINGS OR
PROPERTY. (See Figure 1).
D. RELIEF VALVE
· WARNING: A POTENTIAL HAZARD TO LIFE AND PROPERTY MAY EXIST IN ANY WATER
HEATER IF AN APPROVED TEMPERATURE-AND-PRESSURE RELIEF VALVE IS NOT PROPERLY
INSTALLED.
· For protection against excessive pressures and temperatures in this water
heater, install temperature-and-pressure protective equipment by local codes,
but not less than a combination temperature-and-pressure relief valve
certified by a nationally recognized testing laboratory that maintains
periodic inspection of production of listed equipment of materials, as meeting
the requirements for Relief Valves and Automatic Gas Shutoff for Hot Water
Supply Systems, ANSI Z21.22-1971. This valve must be marked with maximum set
pressure not to exceed the marked maximum allowable working pressure of the
water heater (150psi). Install the valve into the opening provided and marked
for this purpose in the water heater, and orient it or provide the
104362-08 – 1/23
5
Alliance SL
3 Installation Guidelines (continued)
Installation, Operating & Service Instructions
tubing so that any discharge from the valve will exit only within 6 inches
above, or at any distance below the structural floor and cannot contact any
live electrical parts. The discharge opening must not be blocked or reduced in
size under any circumstances.
· CAUTION: A relief valve is designed to discharge excessively hot water. THE
CUSTOMER IS RESPONSIBLE TO PROTECT PROPERTY AND PERSONNEL FROM HARM WHEN THE
VALVE FUNCTIONS.
· Install the T&P provided on hot water outlet of tank as shown in Figures 1,
2 and 3.
· Care must be taken to be sure that the stem of the pressure-and-temperature
relief valve is immersed in the water within the top 6 inches of the tank.
· The drain line from the relief valve must not be concealed or blocked and
must be protected from freezing.
· WARNING: IF THE WATER SUPPLY IS FROM A WELL, OR KNOWN TO HAVE HARD WATER, IT
IS RECOMMENDED TO USE A PRESSURE RELIEF VALVE IN THE COLD WATER LINE AS WELL
AS A T&P VALVE IN THE HOT WATER LINE.
E. WATER SUPPLY CONNECTIONS
· WARNING: Some local codes mandate the use of a backflow preventer or check
valve or pressure-reducing valve. An adequate expansion tank (or other
adequate means) must be installed to prevent pressure build up or damage from
thermal expansion when a check valve or backflow preventer or pressure-
reducing valve is used. Failure to do so could result in tank leakage and
therefore void the warranty. (See Figures 1, 2 and 3 for proper location)
· All water supply fittings on this heater are brass do not over tighten or
strip threads.
· It is recommended to use a union as per Figures 1, 2, and 3.
· Do not apply heat directly to the cold-water inlet as it is made of plastic
and will melt.
F. BOILER SUPPLY CONNECTIONS
· WARNING: Boiler temperature must be controlled by the boiler high limit not
to exceed 200°. Failure to do so will create a hazardous installation and void
the applicable limited warranties.
· All water supply fittings on this heater are brass do not over tighten or
strip threads.
· It is recommended to use a union as per Figures 1, 2 and 3. NOTE: Be sure to
connect Boiler Supply Line (from the boiler) to the “HX in” fitting and Boiler
Return Line (to the boiler) to the “HX Out” fitting.
G. FILLING THE HEATER
· Check that the temperature-and-pressure relief valve has been properly
installed (mandatory requirement).
· Completely close the drain valve.
· Open the highest hot water faucet to allow air to escape from piping.
· Open the valve to the cold-water inlet and allow the heater and piping
system to completely fill, as indicated by a steady flow of water from the
open faucet.
H. FLUSHING THE HEATER · When a new water heater is first put into service,
the user may observe a temporary increase in the heated water’s pH level. This
is due to the “wet curing” process that the heater’s cement lining normally
undergoes. As the wet curing process continues, the pH level will diminish and
eventually return to normal upon full curing. Under average usage, the wet
curing process typically takes about 14 days to complete. In applications with
relatively low water usage, the process will take longer.
6
104362-08 – 1/23
Alliance SL
3 Installation Guidelines (continued)
Installation, Operating & Service Instructions
· Normally, the temporary increase in the heated water’s pH level is not harmful, but it may be accompanied by one or more of the following symptoms:
· Faint oder of wet cement
· Silky or oily sensation on the skin
· Residue left on dish ware after washing
· Change in hair’s texture after use of soap or shampoo
· Minor skin irritations for those with sensitive skin
· In order to prevent more severe effects of elevated pH, the new water heater
MUST be properly flushed prior to use. To flush the heater, the hot water
faucet(s) should be opened and allowed to run until the water becomes cold.
Once all of the hot water has been drawn from the heater, bring the water
temperature inside the tank back up to its set point. Then, open one of the
hot water faucets and draw a sample of hot water.
· Measure the pH level of the hot water using a pH kit (provided by others). If the pH level of the hot water is above 9, take a water sample from one of the cold water faucets and measure its pH. If the cold water’s pH is above 9, the heater is not the source of the water’s elevated pH level. Contact the local water authority if this is the case. If the cold water’s pH is at or below 9, repeat the above flushing process until a pH of 9 (or below) is measured in a sample of heated water, and above symptoms subside. If the pH level is still above 9 after multiple flushings, contact US Boiler Company for further recommendations.
CAUTION: After a newly installed Alliance heater is initially filled, if water
is not drawn from it for several days or weeks, the pH level of the water
inside the heater may rise higher than what is normally expected, even if the
heater had been flushed prior to this period of inactivity. To avoid adverse
reactions to this elevated pH, the heater MUST be
properly flushed and a sample of heated water MUST be measured to verify that
its pH is 9 or below prior to use.
I. TPI THERMOSTAT INSTALLATION
· Attaching TPI Thermostat to tank: Place hole in back of TPI thermostat over
immersion well. TPI thermostat should fit flush against the tank without
immersion well protruding beyond cover of TPI case. Use self-tapping screw
provided (Screw A) to attach TPI directly to the Alliance SL tank. (See TPI
Diagram 2)
· Inserting the Temperature Sensor: Slide temperature sensor all the way into
the immersion well until it contacts the end. (See TPI Diagram 2)
· The sensor will measure temperature adequately by resting against the bottom
of the immersion well.
(Note: Sensor does NOT need to make intimate contact with entire well surface
to work properly) · CAUTION: Sensor is soldered directly to TPI. DO NOT BEND
SHARPLY OR OVERWORK.
J. TPI WIRING CONTROLS
NOTE: CONTROL ELECTRONICS MUST BE POWERED WITH 24VAC.
· Incoming 24 VAC power must be connected to 24VAC connectors on the bottom
right corner of TPI Thermostat. (See TPI Diagram 3)
· The TPI 24 VAC only requires 20mA, or about 0.5 Watts.
· Connect control wiring to PUMP/TT normally open relay connections (rated for
both 24V and 110V wiring) on the bottom left corner of TPI control. (See TPI
Diagram 3)
· TPI Wiring will vary depending on the type of boiler and valve controls in
the system. Consult attached Wiring Diagrams for appropriate wiring
configuration for your system.
· The Alliance SL water heater may operate as a separate heating zone using
either the heating system circulator and an appropriate zone valve, or a
separate circulator dedicated for water heating. (See Figure 1 & 2).
104362-08 – 1/23
7
Alliance SL
3 Installation Guidelines (continued)
Installation, Operating & Service Instructions
· In both systems, the Alliance SL is controlled through the TPI thermostat on
the heater. (See Figures 1 & 2).
· TPI thermostat calls for the heat when the temperature in the tank is below
the set point (120°F) and either activates a circulator or zone valve
depending upon installation design.
· Run all 24 VAC wiring thru the square notch on bottom of TPI case. (See TPI
Diagram 3)
· Incoming 24 VAC power must be connected to 24 VAC connectors on the bottom
right corner of TPI control. (See TPI Diagram 3)
· Connect control wiring to PUMP/TT normally open relay connections (rated for
both 24V and 110V wiring) on the bottom left corner of TPI control. (See TPI
Diagram 3)
· All and only 110 VAC wiring must go through an appropriate chase nipple
installed in the knockout at bottom of TPI case.
· Be certain to replace TPI cover using Black Screw provided.
4 Installation Checklist
A. INSPECTING AND PREPARING THE WATER HEATER · Remove the cardboard box, which
comes packaged with the heater. It should contain the following: TPI
thermostat, T&P valve and a “Tee”, foamed lid and screws.
B. LOCATION · Solid foundation and dry location. · Protect heater water lines
from freezing. · Area free of flammable vapors. · Sufficient room to service
heater. · Not in close proximity to wood burning stove. · Where leak will not
damage property.
C. PROTECTION FROM WATER DAMAGE · Be sure to make provisions to protect area
from water damage if a leak should occur in the tank or connected fittings.
D. RELIEF VALVE · Warning: Improper installation will present potential hazard
to life and property. · Check to be sure that proper relief valve requirements
are met. · T&P installed as shown in Figures 1, 2 and 3. · 3/4 in. discharge
pipe properly protected from freezing and restrictions. · No valve between
tank and relief valve or in drain line. · Provision for hot water discharge
from relief valve.
E. WATER SUPPLY CONNECTIONS (See Figure 1, 2 & 3). · Do not over tighten brass
threads. · Mark the water shutoff for future reference. · Do not apply heat to
cold inlet.
8
104362-08 – 1/23
Alliance SL Installation, Operating & Service Instructions
4 Installation Checklist (continued)
· If there is a check valve (sometimes in water meter), backflow preventer or
pressure-reducing valve, install an adequate size expansion tank.
F. FILLING THE HEATER · Completely fill heater. · Water connections completed
and free of leaks. · Check for proper installation of relief valve. · Close
drain valve. · Open highest hot water faucet. · Open cold water inlet valve
and fill system.
G. FLUSHING THE HEATER · Inform the home owner to flush the water heater if
they experience a `silky’ feel accompanied by a mild odor to the water. See
Flushing the Heater on Page 6 for details.
H. WIRING See Figure 1 & 2 and separate TPI control wiring diagrams. · TPI
requires 24V to operate. See TPI installation for details. · Wire either as a
heating zone or separate circulator. · Water heater temperature is controlled
by TPI thermostat. · WARNING: Boiler must have high limit control set no more
than 200°F.
5 Service Information
WATER TEMPERATURE REGULATION
WARNING: Exposure to 125°F or hotter water can cause scalding injuries.
Appropriate caution must be taken when using hot water. Special supervision
must be given to those who cannot act quickly
such as children, disabled or elderly persons.
The input of heat into the tank is controlled by an immersion thermostat.
These automatic controls are set at the factory to maintain a water
temperature of 120°F. Note: Although these thermostats are designed to
industry standards, they can fail to control temperature properly without any
notice, and therefore should be tested periodically for your protection.
DANGER: IF YOU DISCOVER EXTREME HOT WATER COMING FROM THE FAUCET, IMMEDIATELY
SHUT OFF THE MAIN SWITCH TO THE BOILER AND CALL COMPETENT SERVICE PERSONNEL.
ANY OVERHEATED WATER IS A POTENTIAL HAZARD TO LIFE AND PROPERTY. DO NOT
OPERATE UNTIL THE SOURCE OF THE PROBLEM HAS BEEN DETERMINED AND ELIMINATED.
· Water temperature over 125°F can cause severe burns instantly or death from
scalds. · Children, disabled and elderly persons are at the highest risk of
being scalded. · See instruction manual before setting temperature at the
water heater. · Feel water before bathing or showering.
104362-08 – 1/23
9
Alliance SL
5 Service Information (continued)
Installation, Operating & Service Instructions
Proper maintenance is important for any product. It is suggested that the
purchaser follow the preventive maintenance program outlined below.
WATER TEMPERATURE CONTROLS
A periodic inspection of the operating controls, heat exchanger and wiring
should be made by qualified service personnel. Temperature of the water should
be tested periodically at the faucet to be sure thermostat is working
properly. TEMPERATURE ADJUSTMENT
The TPI comes with a factory set temperature setting of 120°F and differential
setting of 10°F. Any temperature adjustment of the thermostat must be made by
qualified service personnel, as shown below.
WARNING: See SERVICE INFORMATION Water Temperature Regulation, regarding safe
water temperature before proceeding. Hot water can cause scalding injuries. 1.
Shut off or disconnect all electrical supply to heater. 2. Remove cover to TPI
control. 3. Adjust right side lever to the desired temperature. Moving lever
down will decrease temperature. (See
Figure at right and TPI Diagram 1). NOTE: Markings on slide are approximate.
Check temperature at faucet to ensure safe operating temperature. 4. Adjust
left side lever to the desired differential. (See Figure at right and TPI
Diagram 1) The TPI
thermostat will call for heat when the tank temperature has fallen to the set
differential degrees below the temperature set point. 5. Reattach cover. 6.
Reconnect electrical supply.
7. Check faucet temperature to verify desired temperature is achieved.
In order to set the temperature above 140°F {NOT RECOMMENDED} you must remove
the SCALD DANGER label attached to the temperature slide. Caution: Do not
increase temperature above 140°F without a properly installed mixing valve in
the system See Water Temperature Regulation and SCALD WARNING. Indicator
Light operation: The TPI thermostat has an integral indicator light at the top
of the case. (See TPI Diagram 1 or Inside Cover of TPI) Indicator light will
come on (Green) when TPI is powered. When TPI is calling for heat, the
Indicator light will blink. When TPI is satisfied, the Indicator light will be
solid. During normal operation, Indicator light is Green. If TPI detects a
failure, Indicator light will flash Red. Replace TPI.
EMERGENCY Should the heater be subject to flood, fire or other damaging
conditions, turn the power and water to the heater off. DO NOT place water
heater in operation again until it has been thoroughly checked by qualified
service personnel.
10
104362-08 – 1/23
6 TPI Control Diagrams
Indicating Light
Alliance SL Installation, Operating & Service Instructions Temperature Adjust
Differential Adjust
TPI CONTROL – DIAGRAM 1
Screw A
TPI CONTROL – DIAGRAM 2
104362-08 – 1/23
11
Alliance SL
6 TPI Control Diagrams (continued)
Installation, Operating & Service Instructions
Outgoing 24V wires to relay or zone valve
Incoming 24V power connection
Outgoing 110V wires to circulator Chase Nipple Conduit
12
Incoming 24V power connections
NOTE: Use proper conduit and chase nipple
TPI CONTROL – DIAGRAM 3 104362-08 – 1/23
Alliance SL Installation, Operating & Service Instructions
7 Installation Piping Figures
Installation Diagram Using Zone Valves
Figure 1: General Configuration
Installation Diagram Using Separate Circulator
Figure 2: Installation Using Circulator
104362-08 – 1/23
13
Alliance SL
7 Installation Piping Figures (continued)
Installation, Operating & Service Instructions
Figure 3: Commercial
14
104362-08 – 1/23
Alliance SL Installation, Operating & Service Instructions
8 Top Mount Coil Details & Tightening Sequence
Bolt Steel Washer
Small outside O-ring
Large inside O-ring
Coil Plate
Plastic O-Ring Housing
Tank Flange
`L’ Nut
Figure 4: Coil Detail & Tightening Sequence
Proper Tightening Sequence for Top Mount Coil
7 2
3
4
5
2
6
3
1
1
8
Incorrect
Correct
Note: Same as car tire lugs
CAUTION: Does not require excessive force to seal properly.
104362-08 – 1/23
15
Alliance SL Installation, Operating & Service Instructions
9 Circulator & Burner Control Wiring Diagrams
Standard Wiring for Circulator with Boiler Maintaining a Temperature of 180°
Wiring for Burner Control L8148E
16
104362-08 – 1/23
Alliance SL Installation, Operating & Service Instructions
10 Zone Valve Wiring Diagrams
Wiring for 3 Wire Zone Valve
Wiring for 4 Zone Valve
104362-08 – 1/23
17
Alliance SL
11 Switching Relay Wiring Diagrams
Installation, Operating & Service Instructions
Switching Relay R8845U or SR 501
Switching Relay SR-502 or SR-503
18
104362-08 – 1/23
Alliance SL Installation, Operating & Service Instructions
11 Switching Relay Wiring Diagrams (continued)
Switching Relay SR-504 with Priority Option
104362-08 – 1/23
19
12 Service Parts
Alliance SL Installation, Operating & Service Instructions
Item Description
1 Replacement Coil Kit (includes Item 2 thru 8) 2 Seal Deck 3 Immersion Well 4
Drain Valve 5 O-Ring 1-3/16 in.
Outer O-Ring 6-3/4 in. 6
Inner O-Ring 6-1/4 in. 7 Gasket Kit 8 Hardware Kit
TPI Control T & P Relief Valve Black Plastic Coil Cover Coil Cover Insulation
Replacement Misc. Parts Carton (Includes TPI Control, T&P Relief Valve,
Plastic Coil/ Insulation)
Part Number
AL27SL AL35SL AL50SL AL70SL
101484-01
101484-02
111963-01
105616-01
102802-01
111964-01
AL70CSL 101484-04
101539-01
107180-01 101538-01 101379-01 101540-01 102077-01 102078-01
101540-02
101537-01
101537-03
20
104362-08 – 1/23
Alliance SL
13 How To Obtain Service Assistance
Installation, Operating & Service Instructions
U.S. Boiler Company, LLC does not have a service department or personnel to
service your heater in the field. A qualified installer or service technician
must do all service work. Therefore, if you have any questions about your new
water heater concerning service adjustment, repair, routine maintenance, or
replacement – first contact your installer, plumbing contractor or service
agency.
In the event that the contractor, for whatever reason, is unable to help,
refer to the telephone directory commercial listings for qualified service
assistance.
If neither action has solved your problem, contact U.S. Boiler Company, LLC as
follows to obtain the number of a qualified service person in your area:
SALES SUPPORT U. B. BOILER COMPANY, LLC
P.O BOX 3020 LANCASTER, PA 17604
Or call 888-432-8887
When contacting U.S. Boiler Company the following information should be made
available:
A. Model and serial number of the water heater as listed on inside back cover
of this manual or on the rating plate on the heater.
B. Address where water heater is installed.
C. Name and address of dealer from whom the heater was purchased and
installer’s name and address
D. Date of original installation and any service work performed since then.
E. Details of the problem as you can best describe.
F. List of people who have been contacted regarding the problem.
www.usboiler.net
104362-08 – 1/23
21
10-2-1
Limited Warranty
Alliance SL Installation, Operating & Service Instructions
For Alliance SLTM and Alliance LTTM Indirect-Fired Water Heaters
Ten Year Limited Tank Replacement Warranty Two Year Limited Tank Replacement
Labor Allowance
One Year Limited Parts Warranty
U.S. Boiler Company, Inc. (hereinafter called the “Company”) offers the
following Limited Tank Replacement Warranty, Limited Tank Replacement Labor
Allowance, and Limited Parts Warranty to the original purchaser/owner of this
Alliance SL or Alliance LT indirect-fired water heater. These warranties are
not transferable beyond the original purchaser/owner, and are not valid if the
tank is removed from initial installation site. The Company reserves the right
to require proof of purchase and inspection and/or testing of tank as a
condition of these warranties.
TEN (10) YEAR LIMITED TANK REPLACEMENT WARRANTY DURATION: 1. STANDARD
DURATION: Ten (10) years from the date of manufacture as
indicated by the serial number. 2. OPTIONAL LIFETIME DURATION: Available to
residential, single family homes
only (excludes AL119SL, AL70CSL, AL80CLT, and AL119CLT) for as long as the
original purchaser owns the home in which the Alliance SL or Alliance LT was
originally installed. Optional Lifetime replacement Warranty is not effective
unless U.S. Boiler Company, Inc. receives completed registration card and
payment within 30 days of purchase (please see back cover of product manual
for details). IF NO CARD IS RETURNED OR PAYMENT RECEIVED, THE REPLACEMENT
WARRANTY WILL BE THE STANDARD 10-YEAR WARRANTY AND WILL BEGIN FROM THE
MANUFACTURED DATE INDICATED BY THE SERIAL NUMBER ON THE ALLIANCE SL WATER
HEATER.
COVERAGE: Replacement warranty covers only the storage tank for leaks caused
by the corrosive effects of water under normal and proper use. Subject to
prior Company approval.
COMPANY OBLIGATION: Repair of the original tank or replacement of the entire
heater with a new comparable model is at the option of the Company and
constitutes the fulfillment of ALL obligations of the Company hereunder. In
replacing or repairing the Alliance SL or Alliance LT water heater, the
Company reserves the right to make such changes in details of design,
construction or material as shall in their judgment constitute an improvement
of former practices.
REPLACEMENT: When a replacement is made under the terms of this warranty, the
replacement unit will have a warranty of replacement and labor allowance only
for the remaining time under the original warranty. The Company reserves the
right to require the return of the defective unit at the expense of the
purchaser.
LIMITATION: The duration of the tank replacement warranty on the tank assembly
shall be reduced to a period of five years if (1) the purchaser is a business,
partnership or corporation, or if (2) the Alliance SL or Alliance LT water
heater is used for a commercial, institutional, industrial, non-residential or
multi-application, or (3) if the covered tank model is an AL119SL, AL70CSL,
AL80CLT, or AL119CLT water heater, as these models are configured as
commercial tanks and will always follow commercial warranty terms. All repairs
or replacements will be made F.O.B. the Company. The purchaser must pay for
transportation service, labor, installation, administrative fees or other
costs involving the repair or replacement of such part.
YOUR ACTION: When you discover a defect, immediately notify the dealer from
whom the heater was purchased. If you cannot locate the dealer, contact the
Company.
TWO (2) YEAR LIMITED TANK REPLACEMENT LABOR ALLOWANCE: The Company shall pay
up to a maximum of $200, for the labor to exchange a tank that is leaking due
to the corrosive effects of water within two years from date of installation.
This labor allowance is for tank replacement only, and not for any service
work on the heater such as cleaning of the heat exchanger (due to the buildup
of calcium or other minerals or metals), leakage from plumbing connections,
relief valves, heat exchanger gaskets, thermostats, or any other component of
the heater. This labor must be performed by a qualified installer. Proof of
labor costs may be required as a condition of payment of the Tank Replacement
Labor Allowance.
LIMITATION: All other repairs or replacements will be made F.O.B the Company.
The purchaser must pay for all transportation, service, labor, installation,
administrative fees or other cost involving the repair of replacement of such
component parts.
YOUR ACTION: When you discover a defect, immediately notify the dealer from
whom the heater was purchased. If you cannot locate the dealer, contact the
Company.
ONE (1) YEAR LIMITED PARTS WARRANTY: DURATION: The warranty is effective for
one (1) year beginning with the date of original purchase. This warranty shall
begin from the date of manufacture as
2i2ndicated by the serial number.
COVERAGE: The warranty covers any component part of the Alliance SL or
Alliance LT water heater proven to be defective in workmanship or material
(subject to prior Company approval).
COMPANY OBLIGATION: The warranty covers any component of the Alliance SL or
Alliance LT water heater proven to be defective in workmanship or material.
EXCLUSIONS AND LIMITATIONS: Limited Warranty and Tank Replacement Warranty are
valid only if you comply with the following conditions and limitations: 1. The
Alliance SL or Alliance LT water heater is correctly installed according to
the
installation manual provided with the unit and all applicable local and
national codes. 2. The unit is operated within the factory calibrated
temperature limits and water pressure not exceeding 150 psi. 3. Any failure or
malfunction that does not result from improper or negligent operation,
accident, abuse (including freezing), misuse, unauthorized alteration or
improper maintenance. 4. Any failure or malfunction that does not result from
failure to keep the tank full of potable water, free to circulate at all
times; and free of damaging water sediment or scale deposits. In areas where
adverse water conditions are suspected (i.e. calcium and other minerals), it
is essential that the water be tested and appropriate action be taken to
prevent damage to the Alliance SL or Alliance LT tank. It may be necessary to
remove the heat exchanger for cleaning to maintain maximum performance in poor
water areas. Diminished performance due to the build-up of calcium or other
minerals, metals, or deposits on the heat exchanger is specifically not
included in the coverage of these warranties. 5. THE FOREGOING EXPRESS LIMITED
WARRANTIES ARE THE ONLY WARRANTIES OF ANY KIND, EITHER EXPRESS OR IMPLIED.
THERE ARE NO EXPRESS OR IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
PARTICULAR PURPOSE, PERFORMANCE OR NON-INFRINGEMENT, OR OTHER EXPRESS OR
IMPLIED WARRANTIES. EXCEPT FOR THE LIMITED WARRANTIES SET FORTH HEREIN, THE
COMPANY DISCLAIMS ALL OTHER WARRANTIES OR CONDITIONS, EXPRESS OR IMPLIED,
REGARDING THE PRODUCT OR ITS OR THEIR FITNESS FOR A PARTICULAR PURPOSE OR ITS
OR THEIR MERCHANTABILITY. PURCHASER SHALL HAVE SOLE RESPONSIBILITY FOR
SELECTING APPROPRIATE WATER HEATER FOR THE PURCHASER’S NEEDS AND USE AND THE
COMPANY DOES NOT WARRANT THE FITNESS FOR THE WATER HEATER’S INTENDED USE
WITHIN ANY SPECIFIC SYSTEM. THE COMPANY DOES NOT AUTHORIZE COMPANY
REPRESENTATIVES OR OTHER PERSONS TO VARY THE TERMS OF THE WARRANTIES HEREIN OR
TO ASSUME FOR THE COMPANY ANY OTHER OBLIGATIONS OR LIABILITIES WITH RESPECT TO
THIS PRODUCT. 6. The remedies set forth above shall be the sole and exclusive
remedies for breach of any warranty.
IN NO EVENT SHALL THE COMPANY BE LIABLE FOR ANY INCIDENTAL OR CONSEQUENTIAL
DAMAGES WHATSOEVER.
Consumer Notifications: The foregoing warranty limitations shall be effective
to the maximum extent permitted by applicable law, and, to the extent that any
such limitations would have an unconscionable result or would otherwise be
inconsistent with applicable law, such provision shall be reformed to the
extent necessary to avoid such unconscionable result or inconsistency. With
respect to the limitations on implied warranties set forth above, the Company
hereby notifies each person to whom such warranty is made as follows: Some
states do not allow exclusions of such warranties, limitations on how long an
implied warranty lasts or the exclusion or limitation of incidental or
consequential damages, so the above limitations, or exclusions, may not apply
to you. The limited warranty gives you specific legal rights, and you may also
have other rights which vary from state to state.
U.S. Boiler Company, LLC P.O. Box 3020, Lancaster PA 17604
Revised 12/22
104362-08 – 1/23
DATE
Alliance SL Installation, Operating & Service Instructions
SERVICE RECORD
SERVICE PERFORMED
104362-08 – 1/23
23
Alliance SL Installation, Operating & Service Instructions
U.S. Boiler Company, LLC P.O. Box 3020 Lancaster, PA 17604
1-888-432-8887 www.usboiler.net
24
104362-08 – 1/23
References
Read User Manual Online (PDF format)
Read User Manual Online (PDF format) >>