8
1. Determine volume of space (boiler room). Rooms
communicating directly with space (through
openings not furnished with doors) are considered
part of space.
Volume [ft³] = Length [ft] x Width [ft] x Height [ft]
2. Determine Total Input of all appliances in space.
Round result to nearest 1,000 Btu per hour (Btuh).
3. Determine type of space. Divide Volume by Total
Input.
a. If result is greater than or equal to 50 ft³ per 1,000
Btuh, space is considered an
unconfined space
.
b. If result is less than 50 ft³ per 1,000 Btuh, space is
considered a
confined space
.
4. Determine building type. A building of
unusually
tight construction
has the following characteristics:
a. Walls and ceiling exposed to outside atmosphere
have a continuous water vapor retarder with a
rating of 1 perm or less with openings gasketed
and sealed, and;
b. Weather-stripping has been added on openable
windows and doors, and;
c. Caulking or sealants applied in joints around
window and door frames, between sole plates and
floors, between wall-ceiling joints, between wall
panels, at plumbing and electrical penetrations,
and at other openings.
5. For boiler located in an
unconfined space in a
building of
other than unusually tight construction
,
adequate combustion and ventilation air is normally
provided by fresh air infiltration through cracks
around windows and doors.
NOTICE
Boilers operated with sealed combustion are
exempt from needing provisions for combustion
air from the room, provided air intake piping is
installed per code and the instructions in this
manual.
6. For boiler located within
unconfined space in
building of unusually tight construction
or within
confined space
, provide outdoor air through two
permanent openings which communicate directly or by
duct with the outdoors or spaces (crawl or attic) freely
communicating with the outdoors. Locate one opening
within 12 inches of top of space. Locate remaining
opening within 12 inches of bottom of space. Minimum
dimension of air opening is 3 inches. Size each opening
per the following:
WARNING
Carefully read all instructions before installing
boiler. Failure to follow all instructions in proper
order can cause personal injury or death.
A
. Installation must conform to the requirements of
the authority having jurisdiction. In the absence of
such requirements, installation must conform to the
National Fuel Gas Code
, NFPA 54/ANSI Z223.1, and/
or CAN/CGA B149 Installation Codes. Where required
by the authority having jurisdiction, the installation
must conform to the
Standard for Controls and Safety
Devices for Automatically Fired Boilers
, ANSI/ASME
CSD-1.
B.
The boiler is not design certified for installation on
combustible flooring. The boiler must not be installed
on carpeting.
C.
Provide clearance between boiler jacket and combustible
material in accordance with local fire ordinance. Refer
to page 4 of this manual for minimum listed clearance
from combustible material.
D.
Install on level floor. For basement installation provide
concrete base if floor is not perfectly level or if water
may be encountered on floor around boiler. Floor
must be able to support weight of boiler, water and all
additional system components.
E.
Protect gas ignition system components from water
(dripping, spraying, rain, etc.) during boiler operation
and service (circulator replacement, condensate trap
service, control replacement, etc.).
F.
Provide combustion and ventilation air in accordance
with applicable provisions of local building codes or:
USA -
National Fuel Gas Code
, NFPA 54/ANSI Z223.1,
Section 5.3, Air for Combustion and Ventilation;
Canada - Natural Gas Installation Code, CAN/CGA
- B149.1, or Propane Installation Code, CAN/CGA
- B.149.2, Part 5, Venting Systems and Air Supply for
Appliances.
WARNING
Adequate combustion and ventilation air must
be provided to assure proper combustion.
The following guideline is based on the
National Fuel
Gas Code
, NFPA 54/ANSI Z223.1.
I. Pre-Installation
Summary of Contents for EVCA SERIES
Page 14: ...14 Figure 4 Typical Vertical Pressurized Venting ...
Page 16: ...16 Figure 6 Vertical Air Intake Piping Figure 5 Horizontal Air Intake Piping ...
Page 19: ...19 Figure 8 Schematic Boiler Piping ...
Page 25: ...25 Figure 9a 208 230 480V 1PH 3PH 60HZ Supply Power Wiring Schematic ...
Page 26: ...26 Figure 9b 120V 1PH 60HZ Supply Power Wiring Schematic ...
Page 27: ...27 Figure 9c Control Wiring Schematic EVCA 750 2000 ...
Page 29: ...29 Figure 9e Control Wiring Schematic EVCA 3000 ...
Page 32: ...32 Figure 10 Modular System Horizontal Air Intake Piping ...
Page 33: ...33 Figure 11 Modular System Vertical Air Intake Piping ...
Page 34: ...34 Figure 12 Modular System Typical One Pipe Water Piping ...
Page 35: ...35 Figure 13 Modular System Typical Primary Secondary Water Piping ...
Page 36: ...36 Figure 14 Modular System Typical Primary Secondary without System Pump ...
Page 37: ...37 Figure 15 Modular System Typical Reverse Return Water Piping ...
Page 38: ...38 Figure 16 Modular System Reverse Return with System Pump Only ...
Page 39: ...39 Figure 17 Modular System Typical Primary Secondary with Reverse Return ...
Page 55: ...55 Figure 18 Cleaning Secondary Heat Exchanger 1 2 ...
Page 56: ...56 This page intentionally left blank ...
Page 58: ...58 Figure 19 Boiler Combustion Chamber ...
Page 60: ...60 Figure 20 Burner Assembly FRONT VIEW TOP VIEW ...
Page 62: ...62 Figure 21a UL FM CSD 1 Main Gas Train Assembly EVCA 750 2000 ...
Page 64: ...64 Figure 21b UL FM CSD 1 Main Gas Train Assembly EVCA 3000 ...
Page 66: ...66 Figure 22a DB B Gas Train 750 Figure 22b DB B Gas Train 1000 2000 ...
Page 68: ...68 Figure 22c DB B w POC Gas Train 750 Figure 22d DB B w POC Gas Train 1000 2000 ...
Page 70: ...70 Figure 22e DB B Gas Train EVCA 3000 Figure 22f DB B w POC Gas Train EVCA 3000 ...
Page 72: ...72 Figure 23 Jacket ...
Page 74: ...74 Figure 24 EVCA 750 1000 and 1500 Secondary Heat Exchanger and Housing ...
Page 78: ...78 Figure 25b EVCA 3000 Secondary Heat Exchanger and Housing ...
Page 80: ...80 Figure 26 Control Panel Assembly ...
Page 82: ...82 Figure 27 Bishop Pilot Assembly ...
Page 97: ...97 NOTES ...
Page 98: ...98 NOTES ...
Page 99: ...99 NOTES ...