Lochinvar 80 - 285 User Manual Page 10
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Installation & Operation Manual
10
1 Determine boiler location
Provide air openings to room:
Knight boiler alone in boiler room
1. No air ventilation openings into the boiler room are
needed when clearances around the Knight boiler are at
least equal to the SERVICE clearances shown in
FIG.’s 1-1 and 1-2. For spaces that do NOT supply this
clearance, provide two openings as shown in FIG. 1-1.
Each opening must provide one square inch free area per
1,000 Btu/hr of boiler input.
Knight boiler in same space with other gas or oil-
fired appliances
1. Follow the National Fuel Gas Code (U.S.) or CSA B149.1
(Canada) to size/verify size of the combustion/ventilation
air openings into the space.
The space must be provided with
combustion/ventilation air openings
correctly sized for all other appliances
located in the same space as the Knight
boiler.
Do not install the boiler in an attic.
Failure to comply with the above warnings
could result in severe personal injury,
death, or substantial property damage.
2. Size openings only on the basis of the other appliances in
the space. No additional air opening free area is needed
for the Knight boiler because it takes its combustion air
from outside (direct vent installation).
Do not install the boiler on carpeting even
if foundation is used. Fire can result,
causing severe personal injury, death, or
substantial property damage.
If flooding is possible, elevate the boiler sufficiently to prevent
water from reaching the boiler.
Flooring and foundation
Flooring
The Knight boiler is approved for installation on combustible
flooring, but must never be installed on carpeting.
Residential garage installation
Precautions
Take the following precautions when installing the appliance
in a residential garage. If the appliance is located in a
residential garage, it should be installed in compliance with
the latest edition of the National Fuel Gas Code, ANSI Z223.1
and/or CAN/CGA-B149 Installation Code.
• Appliances located in residential garages and in
adjacent spaces that open to the garage and are not part
of the living space of a dwelling shall be installed so that
all burners and burner ignition devices are located not
less than 18 inches (46 cm) above the floor.
• The appliance shall be located or protected so that it is
not subject to physical damage by a moving vehicle.
Vent and air piping
The Knight boiler requires a special vent system, designed for
pressurized venting.
The boiler is to be used for either direct vent installation or
for installation using indoor combustion air. When room air
is considered, see Section 3, General Venting. Note
prevention of combustion air contamination below when
considering vent/air termination.
Vent and air must terminate near one another and may be
vented vertically through the roof or out a side wall, unless
otherwise specified. You may use any of the vent/air piping
methods covered in this manual. Do not attempt to install the
Knight boiler using any other means.
Be sure to locate the boiler such that the vent and air piping
can be routed through the building and properly terminated.
The vent/air piping lengths, routing and termination method
must all comply with the methods and limits given in this
manual.
Prevent combustion air contamination
Install air inlet piping for the Knight boiler as described in
this manual. Do not terminate vent/air in locations that can
allow contamination of combustion air. Refer to Table 1A,
page 11 for products and areas which may cause
contaminated combustion air.
You must pipe combustion air to the
boiler air intake. Ensure that the
combustion air will not contain any of the
contaminants in Table 1A, page 11.
Contaminated combustion air will
damage the boiler, resulting in possible
severe personal injury, death or substantial
property damage. Do not pipe
combustion air near a swimming pool, for
example. Also, avoid areas subject to
exhaust fumes from laundry facilities.
These areas will always contain
contaminants.
WARNING
WARNING
WARNING
- Models: 80 - 285 1
- Starting Serial #H07H10040039 1
- Hazard definitions 2
- Contents 2
- Please read before proceeding 3
- Models 80 - 210 5
- Model 285 6
- Knight Boiler 7
- I=B=R Rating 7
- Other Specifications 7
- 1 Determine boiler location 10
- (continued) 11
- 2 Prepare boiler 13
- 3 General venting 14
- General venting (continued) 15
- 4 Sidewall direct venting 21
- Field Supplied Option) 23
- Prepare wall penetrations 23
- Description and usage 25
- 5 Vertical direct venting 28
- Prepare roof penetrations 29
- Termination and fittings 29
- 6 Hydronic piping 32
- Circulator sizing 33
- Hydronic piping (continued) 35
- 7 Gas connections 42
- Gas connections (continued) 43
- 8 Field wiring 46
- 8 Field wiring (continued) 47
- 9 Condensate disposal 50
- 10 Start-up 51
- 10 Start-up (continued) 53
- 11 Operating information 57
- Boiler temperature regulation 59
- Sequence of operation 61
- Knight boiler control module 63
- Status Display Screens 65
- 12 Maintenance 69
- 12 Maintenance (continued) 71
- 13 Diagrams 74
- 13 Diagrams (continued) 75
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