Honeywell DVD Recorder L Manuale Utente
R7140G,L,M BURNER CONTROL MODULES
66-1153—03
6
a
30 seconds with JR2 clipped and jumper from terminal 8 to terminal 15.
*
STANDBY and RUN can be an infinite time period.
** PURGE will be determined by which ST7800A purge card is selected; 15 timings are available from 2 seconds to 30 minutes.
NOTE: Allowable inrush can be up to ten times the pilot
duty rating.
EXAMPLE: Pilot duty rating = 50 VA.
At 120 V, running current is:
50/120 = 0.42A.
Maximum allowable inrush is ten times 0.42A = 4.2A.
INSTALLATION
When Installing this Product...
1. Read these instructions carefully. Failure to follow
them could damage the product or cause a hazardous
condition.
2. Check the ratings given in the instructions and marked
on the product to make sure the product is suitable for
the application.
3. Installer must be a trained, experienced, flame
safeguard service technician.
4. After installation is complete, check out the product
operation as provided in these instructions.
WARNING
Fire or Explosion Hazard.
Can cause property damage, severe injury,
or death.
To prevent possible hazardous burner operation, verify
safety requirements each time a control is installed on
a burner.
WARNING
Electrical Shock Hazard.
Can cause serious injury or death.
Disconnect the power supply before beginning
installation. More than one power supply disconnect
may be required.
IMPORTANT
1. Wiring connections for the relay modules are unique;
therefore, refer to Fig. 4–11 or the correct
Specifications for proper subbase wiring, and
sequence charts.
2. Wiring must comply with all applicable codes,
ordinances and regulations.
3. Wiring must comply with NEC Class 1 (Line Voltage)
wiring.
4. Loads connected to the R7140 must not exceed
those listed in the Specifications; see Table 3 and 4.
5. Limits and interlocks must be rated to simultaneously
carry and break current to the ignition transformer,
pilot valve, and main fuel valve(s).
6. All external timers must be listed or component
recognized by authorities who have jurisdiction for
the specific purpose for which they are used.
7. For on-off gas-fired systems, some authorities who
have jurisdiction prohibit the wiring of any limit or
operating contacts in series between the flame
safeguard control and the main fuel valve(s).
8. Two Flame Detectors can be connected in parallel
with the exception of flame detectors C7927, C7915,
C7961, and C7962.
9. This equipment generates, uses and can radiate
radio frequency energy and, if not installed and used
in accordance with the instructions, may cause
interference to radio communications. It has been
tested and found to comply with the limits for a
Class A computing device of Part 15 of FCC rules
which are designed to provide reasonable protection
against such interference when operated in a
commercial environment. Operation of this
equipment in a residential area may cause
interference; in which case, the users at their own
expense may be required to take whatever measures
are required to correct this interference.
10.This digital apparatus does not exceed the Class A
limits for radio noise for digital apparatus set out in
the Radio Interference Regulations of the Canadian
Department of Communications.
Table 5. Sequence Timing for Normal Operation.
Device Initiate Standby Purge
Flame
Establishing
Period
Run
Post
Purge
Timing Interlock Circuits
Firing
Rate
Circuit
Energy
Saving
Pre-Purge
Approval
Code
Bodies
Pilot
Main
R7140G 10 sec.
*
**
4 or 10
sec.
10, 15
sec.
sec.
a
or
intermittent.
*
15 sec. Pre-Ignition,
Running, Low Fire
4-wire
modulating
No
UL/CSA
Modulating
R7140L
10 or 15
sec.
sec.
a
Pre-Ignition,
Lockout High and
Low Fire
FM/IRI
Modulating
R7140M
10 sec. or
intermittent
Pre-Ignition,
Running, isolated
Low Fire.
2-wire
isolated
On-Off-On
contacts
UL/CSA
On-Off.