Reznor FT30-CV Скачать руководство пользователя страница 13

Form RGM 433-CV/LN, Mfg No. 177854 (Revision 1), Page 13

Figure 7 - Electrical Connections, DIP Switch Settings,
and LED Signal Codes on the Integrated Circuit Board
in the Control Compartment

Circuit Board LED Flash Codes

Slow Flash .....  Normal Operation, No Call for Heat
Fast Flash ......  Normal Operation, Call for Heat
2 Flashes ........  System Lockout, Failed to Detect or Sustain Flame
3 Flashes ......... Pressure Switch Open or Closed
4 Flashes ......... High Limit or Flame Rollout Switch Open
5 Flashes ......... Flame Sensed and Gas Valve Not Energized
Steady On ....... Internal Failure - Replace the Circuit Board

DIP Switch Settings

SW1

Fan Delay

1

2

to Off

OFF

OFF

90 seconds

OFF* ON*

120 seconds*

ON

OFF

180 seconds

ON

ON

240 seconds

*Standard factory setting.

DANGER: Safe operation of this unit requires
proper venting flow. NEVER bypass combustion
air proving switch or attempt to operate the unit
without the venter running and the proper flow
in the vent system. Hazardous conditions could
result. See Hazard Levels, page 1.

16. Gas Valve

The main operating gas valve is powered by the 24-volt control circuit
through the thermostat and safety controls. The main control valve is
of the diaphragm type providing regulated gas flow preset at the fac-
tory.

WARNING: The operating valve is the prime
safety shutoff. All gas supply lines must be free
of dirt or scale before connecting the unit to
ensure positive closure. See Hazard Levels, page
1.

17. Ignition System

This heater is equipped with a direct spark integrated control system.
The system monitors the safety devices and controls the operation of
the fan and venter motors and the gas valve between heat cycles.

Ignition System Operating Sequence -- On a call for heat from the
thermostat, the system energizes the venter motor and goes through a
10-second prepurge. The system verifies that both the pressure switch
and the high limit are in the closed state. The gas valve is then ener-
gized and the ignition system provides the high voltage spark to the
electrode to ignite the main burner gas. Burner flame is electronically
sensed by the control upon carryover of all burners. (A separate solid
metal probe is used as the flame sensing function. A low voltage elec-
trical signal is imposed on the metal probe which is electrically iso-
lated from ground. When the flame impinges on the flame sensing probe,
the flame acts as a conduction path to ground. The flame rectifies and
completes the DC circuit, and the ignition system acknowledges the
flame.) The fan motor is energized by the system after 30 seconds of
flame sensing.

After the thermostat has been satisfied, the system de-energizes the gas
valve, the venter motor goes through a 45-second post-purge, and the
fan motor remains energized for an additional 180 seconds.

NOTE: This is a three trial system, should the unit not sense burner
flame, the unit will lockout for one hour before initiating another trial
for ignition. To initiate another trial for ignition before the one hour,
requires that either the thermostat be reset or the power to the unit be
interrupted for 30 seconds.

Ignitor
Connection

Line Voltage
Connection

24-volt Terminal Strip for
Thermostat Connections
(refer to wiring diagram)

DIP Switch for Regulating
Fan Off Delay Time

Model

S tart-Up 

Cold

Equilibrium

S et 

Point 

"OFF"

S et 

Point 

"ON"

FT30-CV

-0.43

-0.20

-0.15

-0.20

FT45-CV or LN

-0.43

-0.205

-0.15

-0.20

CAUTION: Route the wires so that they do not
contact the flue wrapper or venter housing.

Consult the wiring diagram supplied with your heater. Typical wiring
diagram is on page 14.

CAUTION: If any of the original wire as supplied
with the appliance must be replaced, it must be
replaced with wiring material having a temperature
rating of at least 105°C, except for limit control and
sensor lead wires which must be 150°C. See Hazard
Levels, page 1.

Thermostat and Connections

A thermostat is not standard equipment but is an installation require-
ment. Use either an optional thermostat available with the heater or a
field-supplied 24-volt thermostat. Install according to the thermostat
manufacturer's instructions, paying particular attention to the require-
ments regarding the location of the thermostat.

Make sure that the heat anticipator setting on the thermostat is 0.6
amps (or in accordance with the amperage value noted on the wiring
diagram of your heater).

14. Fan Motor

The fan motor is equipped with thermal overload protection of the
automatic reset type. Should the motor refuse to run, it may be because
of improper current characteristics. Make certain that the correct volt-
age is available at the motor.

15. Combustion Air Proving

Switch

The combustion air proving switch is a pressure sensitive switch that
monitors air pressure to ensure that proper combustion air flow is avail-
able. The switch is a single pole - normally open - device which closes
when a decreasing pressure is sensed in the venter housing.

On start-up when the heater is cold, the sensing pressure is at the most
negative level, and as the heater and flue system warm up, the sensing

pressure becomes less negative. After the system has reached equilib-
rium (about 20 minutes), the sensing pressure levels off.

If a restriction or excessive flue length or turns cause the sensing pres-
sure to be outside the switch setpoint, the pressure switch will function
to shut off the main burners. The main burners will remain off until the
system has cooled and/or the flue system resistance is reduced. The
Table below lists the approximate water column negative pressure read-
ings and switch setpoints for sea level operating conditions.

Содержание FT30-CV

Страница 1: ...ath Read the installation operation and maintenance instructions thoroughly before installing or servicing this equipment HAZARD INTENSITY LEVELS 1 DANGER Failure to comply will result in severe perso...

Страница 2: ...and movable scaffold ing In addition the heaters must be located so as to be accessible for servicing adjustment etc 2 Warranty Refer to the limited warranty information on the Warranty Card in the O...

Страница 3: ...and 45 inches mm Top 1 25 Flue Connector 6 152 Access Panel 18 457 Non Access Side 1 25 Bottom 1 25 Rear 18 457 Units must be installed so that the clearances in the table are provided for combustion...

Страница 4: ...ll the assem bly so that the louvers will direct the air downward with the heater in its new position 3 Turn the access panel so that the labels are in an upright position Re attach the panel 10 Suspe...

Страница 5: ...n venting Common Venting Terms and Requirements Common vents must be vertical The common vertical portion may be either a Type B double wall vent a masonry chimney lined with a Type B or listed liner...

Страница 6: ...horizontal length is 6 ft 1 8M Vent Connector of another Category I appliance H R1 R2 Category I Appliance water heater Model FT CV or LN Model FT CV or LN Maximum Length of the Vent Connector of Oth...

Страница 7: ...103 356 230 121 454 294 141 564 358 3 24 47 36 37 87 64 53 139 101 67 210 145 88 290 198 105 384 258 123 492 330 143 612 402 1 22 43 28 34 78 50 49 123 78 65 189 113 89 257 154 106 341 200 125 436 257...

Страница 8: ...8 257 299 203 320 398 265 391 511 339 528 637 413 1 N A N A 29 79 87 52 116 138 81 177 214 116 238 291 158 312 380 208 397 482 266 556 596 324 2 N A N A 34 83 94 62 121 150 97 185 230 138 246 314 189...

Страница 9: ...776 394 3 27 52 34 42 97 62 59 159 98 75 269 145 99 383 206 119 517 276 139 672 358 163 848 452 1 24 42 22 38 80 42 55 130 71 74 232 108 101 324 153 120 444 216 142 582 277 165 739 348 2 26 50 29 40 9...

Страница 10: ...N A N A 35 94 131 68 136 231 112 205 422 176 271 607 255 349 831 351 440 1090 466 610 1386 597 1 N A N A 23 84 104 49 122 200 89 182 410 151 243 617 232 315 875 328 402 1181 444 560 1537 580 2 N A N A...

Страница 11: ...in Do not rely on the heater for support of either horizontal or vertical vent pipe n Vent Terminal The vent terminal should be a minimum of six feet from adjoining buildings The vent terminal should...

Страница 12: ...40 24 84 51 160 98 320 195 490 299 930 567 100 38 23 79 48 150 92 305 186 460 281 870 531 125 34 21 72 44 130 79 275 168 410 250 780 476 150 31 19 64 39 120 73 250 153 380 232 710 433 175 28 17 59 36...

Страница 13: ...fan motor remains energized for an additional 180 seconds NOTE This is a three trial system should the unit not sense burner flame the unit will lockout for one hour before initiating another trial f...

Страница 14: ...CIRCUIT TO HIGH LIMIT OR FLAME ROLLOUT TERMINAL 5 FLASHES FLAME SENSED AND GAS VALVE NOT ENERGIZED STEADY ON INTERNAL FAILURE MICRO CONTROLLER FAILURE SELF CHECK NOTES 1 THE FOLLOWING CONTROLS ARE FI...

Страница 15: ...r natural or propane gas The burners are lightweight and factory mounted in an assembly which permits them to be removed as a unit for inspection or service vice technician to inspect the appliance an...

Страница 16: ...r as practical close all building doors and windows and all doors between the space where the heater is and other spaces of the building Turn on clothes dryers and exhaust fans such as range hoods and...

Страница 17: ...urner tube Fuel gas spilling out of the back of the burner tube will cause gas odor inside the building and if not corrected could eventually cause a fire explo sion hazard To prevent fuel gas spillin...

Страница 18: ...a year Inspection should in clude all joints seams and the vent cap Replace any defective parts Flame Sensor Refer to Figure 10 and locate the flame sensor Dis connect the wire remove the screw and th...

Страница 19: ...control at the thermostat or main power 6 Faulty combustion air proving switch 6 Replace combustion air proving switch 7 Main valve not operating 7 a Defective valve a If 24 volt is measured at the v...

Страница 20: ..._______________________________________________________ __________________________________________________________________ __________________________________________________________________ Phone ____...

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