Bryant 098 Series, Руководство по установке

Страница: 8 / 47

Check your local codes for the installation of the oil tank and
accessories.
At the beginning of each heating season or once a year, check the
complete oil distribution system for leaks.
Ensure that the tank is full of clean oil. Use No.1 or No.2 Heating Oil
(ASTM D396 U.S.) or in Canada, use No.1 or No.2 Furnace Oil.
A manual shut-off valve and an oil filter shall be installed in sequence
from tank to burner. Be sure that the oil line is clean before connecting
to the burner. The oil line should be protected to eliminate any possible
damage.
Installations where the oil tank is below the burner level
must employ a two-pipe fuel supply system with an appropriate fuel
pump. A rise of 2.4 m (8’) and more requires a two stage pump and
a rise greater than 4.9 m (16’) an auxiliary pump. Follow the pump
instructions to determine the size of pipe needed in relation to the rise
or to the horizontal distance.
2.10 DUCTING
WARNING
P
OISONOUS CARBON MONOXIDE GAS HAZARD
.
DO NOT draw return air from inside a closet or utility room.
Return air MUST be sealed to the furnace casing.
Failure to properly seal ducts can result in death, bodily injury
and/or property damage.
The ducting must be designed and installed according to approved
methods, local and national codes as well as good trade practices.
When ducting supplies air to a space other than where the furnace is
located, the return air must be sealed and also be directed to the space
other than where the furnace is located.
2.10.1 Air filter
A properly sized air filter must be installed on the return air side of the
unit. Refer to the Technical Specifications in Table 6, for the correct
dimensions. Also refer to Section 2.2 and the instructions supplied with
the filter.
2.11 SUPPLY AIR ADJUSTMENTS
(4 SPEED MOTORS)
On units equipped with 4-speed blower motors, the supply air must
be adjusted based on heating/air conditioning output and the static
pressure of the duct system. For the desired air flow refer to Table
1 as well as the table 8 based on static pressure in the Technical
Specifications section of this manual.
To effect the adjustment, the RED (for heating) and BLUE (for cooling
and heat pump) wires can be changed on the motor. Also, refer to the
position of the wires on the electronic board of the unit and consult
the wiring diagrams. If the heating and air conditioning speeds are
the same, the RED wire must be moved to “UNUSED LEADS” on the
electronic board and the jumper provided with the BLUE wire must be
used between the “HEAT” and “COOL” terminals.
The blower start/stop delays can be adjusted by positioning the DIP
switches on the electronic board as shown in the following figures. For
upflow installation, the recommended blower ON delay is 60 seconds
and blower OFF delay 2 minutes.
Figure 8 – Blower Start/Stop Delays
Carte#1158 Board
Table 1 – Blower speed adjustments, 4-speed motor
FURNACE
APPLICATION
HEATING OR A/C
OUTPUT
RECOMMENDED
BLOWER SPEED
HEATING
0.50 USGPH MED-LOW
0.60 USGPH MED-HIGH
0.70 USGPH HIGH
A/C
2.0 TONS MED-LOW
2.5 TONS MED-HIGH
3.0 TONS HIGH
2.12 SUPPLY AIR ADJUSTMENTS
(ECM VARIABLE SPEED
MOTORS)
On units equipped with ECM variable speed blower motors, the air
supply must be adjusted based on heating/air conditioning output. The
start/stop delays of the blower must also be adjusted by positioning the
DIP switches on the electronic board.
Refer to the tables 2 to 5 on page 9, and the figure 11 for the proper
settings.
7