HHP Winchester WUN Series Instrukcja instalacji - Strona 6

Przeglądaj online lub pobierz pdf Instrukcja instalacji dla Piec HHP Winchester WUN Series. HHP Winchester WUN Series 20 stron. Gas-fired furnaces high-efficiency upflow condensing models

When the furnace is used in conjunction with a cooling coil, the
furnace must
installed parallel with or on the upstream side
be
of the cooling unit to avoid condensation in the primary heat
exchanger. When a parallel flow arrangement is used, the
_dampers or other means used jo control air flow shall be
adequate to prevent chilled air from entering the furnace, and
if manually operated, must be equipped with means to prevent
operation of either unit unless the damper is in the full heat or
cool position.
The furnace shall
located:
be
Where a minimum amount of air intake/vent piping and
1.
elbows will be required.
2. As centralized with the air distribution as possible.
han area where ventilation facilities provide for safe limits
3.
of ambient temperature under normal operating condi­
tions. Ambient temperatures must not fall below 32°F (0° C).
Where it will not interfere with proper air circulation in the
4.
confined space.
Where the outdoor combustion air/vent terminal will not
5.
blocked or restricted.
Where it will not interfere with the cleaning, seNicing or
6.
- removal of other appliances.

COMBUSTION AIR A ND VENT S YSTEM

This furnace requires outdoor combustion air. Two separate,
properly-sized pipes must be used; one bringing outdoor air
from the accessory terminal kit outdoors to the furnace com­
bustion air intake (top of unit), and one from the furna � e vent
connection (left or right side of unit) back to the termmal ktt
located outdoors.
The vent terminal kit should be located either through the wall
(horizontal or side vent) or through the roof (vertical vent). Care
should be taken to locate side vented systems where trees or
shrubs will not block or restrict supply air from entering or
combustion products from leaving the terminal. Also, the termi­
nal assembly should be. located as far as possible from a
swimming pool or a location where swimming pool chemicals
might be stored. Be sure the terminal assembly follows the
outdoor clearances listed in the following table for U.S. instal­
n
lations: In Ca
ada, refer to CAN/CGA-B 149.1 or .2 Installation
9ode (latest edition -Venting Sys�ems and Air supply).
VENT TERMINATION (U.S. ONLY)
D ry er Vent
............................. ......... . ........... ..............
Plum bing Vent Stack
..
.. ....
From any opening where vent
Above grade and anticipated
Above �rade when adjacent to
From electric, gas meters, regulators and rehef
equipll } ent - min. horizontal distance .
NOTE:
Consideration must
be
materials by flue gases.
4 feet
.
..
..
.
.
.
feet
3
......
.. ..
.
...... ....
. .......
. .
.
.
.
.
.
..
.
.
feet
.
4
...
.
.
.
.
.
.
.
.
given for degradation of building
Sizing.·

UNIT INSTALLATION

DUCTWORK
The duct system's design and installation must:
Handle an air volume appropriate for the seNed space and .
1.
wit . hin the opera.ting parameters of the furnace specifica­
tions.
2. Be installed in accordance with standards of NFPA (Na·
tiona! Fire Protection Association) as outlined in NFPA
pamphlets 90A and 90B or applicable national, provincial,
local fire and safety codes.
Create a closed duct system. The supply duct system must
3.
be connected to the furnace outlet and the return duct
system must be sealed to the furnace inlet casing. Both
supply and return duct systems must terminate outside the
space containing the furnace.
Generally complete a path for heated or cooled. air to
4.
circulate through the air condition�ng and heating equip­
ment and to and from the conditioned space.
NOTE:
The supply air temperature differential between the
be
side discharge versus front to back discharge is substan­
tial./! is recommended that whenever possible position the
furnace so left and right side supply air is dominate.
After the unit is in the desired position, fasten the supply
ductwork to the furnace duct flanges. A removable access
panel should
provided in the outlet duct such that smoke or
be
reflected light would be obseNable inside the casing to indicate
the presence of leaks in the heat exchanger. This access cover
shall be attached in such a manner as to prevent leaks. Flexible
duct connectors are recommended to connect both the supply
and return ducts to the furnace.
Return air ductwork may be connected to an upflow furnace in
one of the following two ways:
1. Bottom Return - Before attaching the ductwork to the
furnace bottom, see the "Filters• section of this instruction.
2. Side Return - Cut a hole in the side panel of the furnace
using the right-angle markings (See Figure 1) as a guide
for position and size of the opening. Install a single side
return filter ·frame accessory if one is required. If this
accessory is not needed, the ductwork can
directly to the fumace opening.
NOTE:
Some accessory side filter packages require cutting
slightly larger opening.
CORNER
M.'.FU<INGS
FIGURE
1
-SIDE RETURN CUTOUT MARKINGS
fastened
be
c.