AHRI (-)98VA060M317USA, Руководство по установке

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Note: If the calibration attempt fails or fault codes are
present, see Table 18, R97V Fault Codes with Descrip-
tion and Solutions.
Burner Ignition
Upon proving flame from successful ignition, the IFC con-
tinues in the following way:
1. If calibration cycle is active:
The IFC proceeds to the Warm Calibration following
the 2 minute warm-up period.
2. If Calibration Cycle is not active:
Warm-up period will be active for 2 minutes.
The firing rate should be set to 100 % for the first 22 sec-
onds of the Warm-up period and then the IFC will accept
the thermostat demand.
Blower on Delay
The IFC waits 22 seconds after the start of the ignition trial
to energize the main blower during heat mode (call for
heat).
During the 2 minute warm-up period, the furnace control
uses the inducer RPM’s determined during the cold cali-
bration sequence for the low, mid and high pressure
switches. When the Warm-up period ends, the furnace
control will use the inducer RPM’s determined during the
warm calibration sequence and the IFC proceeds to the
Steady State Heating mode.
Steady State Heat
Heating blower CFM values will be a function of the cur-
rent firing rate and the selection of comfort or efficiency
heating modes (dipswitch SW-18 or, for communicating
systems, selected in the Econet Control Center) and the
arrangement of the low and high heating airflow adjust-
ments using dipswitches SW13, SW14, SW15 and SW16
(for communicating systems, the adjustment is made at
the Econet control center).
Inducer Post-Purge
Inducer wil continue to run for 28 seconds at mid-fire RPM
after the gas valve is de-energized.
Blower Off Delay
The blower off delay is to always begin after the gas valve
is de-energized or when detected error conditions that
have been cleared require blower to be energized and
then de-energized. It is user-selectable per dipswitch
SW17 or, for communicating systems, the value selected
at the Econet control center. The blower off delay will take
place at the same CFM demand that the blower was at
the time of the gas valve de-energizing or at CFM match-
ing 100% firing rate if the blower was off.
If a compressor call becomes present during the heat
blower “off” delay, the IFC will immediately switch the
blower output to the greater of the cool call and heat call
CFM until the end of the blower “off” delay. At the end of
the blower off delay, the blower CFM shall be set to the
cool or HP CFM.
Blower Off Delay
The blower off delay is to always begin after the gas valve
is de-energized or when detected error conditions that
have been cleared require blower to be energized and
then de-energized. It is user-selectable per dipswitch
SW17 or, for communicating systems, the value selected
at the Econet control center. The blower off delay will take
place at the same CFM demand that the blower was at
the time of the gas valve de-energizing or at CFM match-
ing 100% firing rate if the blower was off.
If a compressor call becomes present during the heat
blower “off” delay, the IFC will immediately switch the
blower output to the greater of the cool call and heat call
CFM until the end of the blower “off” delay. At the end of
the blower off delay, the blower CFM shall be set to the
cool or HP CFM.
1. P1 (8-Pin), P2 (6-Pin) and P7 (5-Pin)
Low-Voltage Internal Wiring Connections – Connect
main twist-lockwire harness to these connections.
Pre-wired from the factory.
2. RJ-14 CONNECTOR (J1)
This connector is used to program the furnace control
at the factory. It may also be connected in the field to
certain Econet devices. It should never be connected
to a telephone line or a telephone. Doing so could
damage the furnace control or the telephone (or
telephone lines) or both.
3. SPARk IGNITION TRANSFORMER (T1)
The spark ignition transformer resides on the furnace
control. The transformer provides spark energy at
approximately 60 hz frequency and a minimum of
12KV.
4. BIAS / TERMINATION (S4)
For current installations, all three of the
dipswitches in bank SW4 must be in the “OFF”
position. If not, the system may not be able to
communicate.
5. COMMUNICATIONS LED’S (CR36 & CR38)
Two LED’s are provided to indicate the status of
communications. A red LED (labeled TX) is provided
for transmit and a green LED (labeled RX) is provided
for receive. These LED’s will be lit in an undefined
pattern when other communicating components are
attached and communicating with the furnace control.
START-UP AND SEqUENCE OF OPERATIONS
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WARNING
DO NOT CONNECT A TELEPHONE OR PHONE
LINE TO THE CONNECTOR (JACk) AT POSITION J-
1. DOING SO COULD CAUSE IRREPARABLE
DAMAGE TO EITHER THE FURNACE CONTROL
(I.F.C.) OR THE TELEPHONE (OR TELEPHONE
LINE) OR BOTH.