Determine boiler location – Lochinvar SYNC 1.3 User Manual
Page 7

7
Installation & Operation Manual
Installation must comply with:
• Local, state, provincial, and national codes, laws,
regulations, and ordinances.
• National Fuel Gas Code, ANSI Z223.1 – latest edition.
• Standard for Controls and Safety Devices for Automatically 
Fired Boilers, ANSI/ASME CSD-1, when required.
• National Electrical Code.
• For Canada only: B149.1 Installation Code, CSA C22.1 
Canadian Electrical Code Part 1 and any local codes.
ƽ WARNING
This appliance is certified as an indoor 
appliance. Do not install the appliance 
outdoors or locate where the appliance will 
be exposed to freezing temperatures or to 
temperatures that exceed 100°F (37.8°C).
Failure to install the appliance indoors 
could result in severe personal injury, 
death, or substantial property damage.
1
Determine boiler location
The SYNC gas manifold and controls 
met safe lighting and other performance 
criteria when the boiler underwent tests 
specified in ANSI Z21.13 – latest edition.
Before locating the boiler, check:
1. Check for nearby connection to:
• System water piping
• Venting connections
• Gas supply piping
• Electrical power
2. Locate the appliance so that if water connections should 
 
leak, water damage will not occur. When such locations
cannot be avoided, it is recommended that a suitable
drain pan, adequately drained, be installed under the
appliance. The pan must not restrict combustion air
flow. Under no circumstances is the manufacturer to be
held responsible for water damage in connection with
this appliance, or any of its components.
3. Check area around the boiler. Remove any combustible 
 
materials, gasoline and other flammable liquids.
Closet and alcove installations
This appliance requires a special venting 
system. Use only the vent materials, primer 
and cement specified in this manual to 
make the vent connections. Failure to 
follow this warning could result in fire, 
personal injury, or death.
For closet and alcove installations as 
shown in FIG.’s 1-1 and 1-2, CPVC or 
stainless steel vent material must be used 
inside the structure. The ventilating air 
openings shown in FIG.’s 1-1 and 1-2 are 
required for this arrangement. Failure to 
follow this warning could result in fire, 
personal injury, or death.
ƽ WARNING
NOTICE
ƽ WARNING
Failure to keep boiler 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.
4. The SYNC must be installed so that gas control system
components are protected from dripping or spraying 
water or rain during operation or service.
5. If a new boiler will replace an existing boiler, check for
and correct system problems, such as:
• System leaks causing oxygen corrosion or heat exchanger
cracks from hard water deposits.
• Incorrectly-sized expansion tank.
• Lack of freeze protection in boiler water causing system 
and boiler to freeze and leak.
Provide clearances:
Clearances from combustible materials
1. Hot water pipes – at least 1/4" (6 mm) from combustible 
materials.
2. Vent pipe – at least 1" (25 mm) from combustible
materials.
3. See FIG.’s 1-1 and 1-2 on page 8 for other clearance
minimums.
Clearances for service access
1. See FIG.’s 1-1 and 1-2 on page 8 for recommended 
 
service clearances. If you do not provide the minimum
clearances shown, it may not be possible to service the
boiler without removing it from the space.
ƽ WARNING
A closet is any room the boiler is installed in which is less than 
778 cubic feet for SB1000 models, 847 cubic feet for SB1300 
models, and 914 cubic feet for SB1500 models.
An alcove is any room which meets the criteria for a closet 
with the exception that it does not have a door.
Example: Room dimensions = 9 feet long, 9 feet wide, and 
9 foot ceiling = 9 x 9 x 9 = 729 cubic feet. This would be 
considered a closet for a SYNC Boiler.
