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Universal Intermittent Pilot Lockout Ignition Module
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$151.95 each
In Stock
Get 16 Tue, Jun 16
Order by today, receive Tuesday
MANUALS (1)
This item replaces: SP735L
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Free Shipping This item ships free
Easy Returns No restocking fee for 90 days
Product Highlights
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Intermittent Pilot
Description
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When the thermostat calls for heat, the 780-845 control simultaneously initiates ignition sparking and opens the pilot valve portion of the gas valve. Pilot flame recognition stops ignition sparking and opens the main valve portion of the gas valve. Pilot burner flame is continuously monitored at a synchronous frequency for the duration of the heating cycle. Should the pilot flame fail during the heating cycle, the control will shut off the main valve until the pilot flame is established.
The 780-845 lockout ignition control provides 90 seconds of spark, followed by a 6 minute time delay (purge) between ignition attempts. After three tries, if no pilot flame is sensed, the control goes into a one-hour lockout period. At the end of the lockout period, if the demand for heat is still present, the unit will repeat the three tries for ignition.
During lockout, you may override the auto-system, and manually reset the unit at the thermostat. The green diagnostic LED will be on continuously for normal operation. The LED will be off for internal lockout and will flash continuously for problems external to the control (ie. not sensing flame).
Specifications:
The 780-845 lockout ignition control provides 90 seconds of spark, followed by a 6 minute time delay (purge) between ignition attempts. After three tries, if no pilot flame is sensed, the control goes into a one-hour lockout period. At the end of the lockout period, if the demand for heat is still present, the unit will repeat the three tries for ignition.
During lockout, you may override the auto-system, and manually reset the unit at the thermostat. The green diagnostic LED will be on continuously for normal operation. The LED will be off for internal lockout and will flash continuously for problems external to the control (ie. not sensing flame).
Specifications:
- Input Voltage: 24 VAC to 50/60 Hz
- Transformer: 24 VAC / 20 VA
- Safety lockout timing: 90 seconds
- Spark rate: 4 to 15 sparks per second
- Pilot valve, Main valve: 1 amp at .5 PF
- Combined load: 1.5 at .4 PF
- Flame sense current: .7 mA DC @ 25°C / 24 VAC
- Maximum total current load: 1.5 amp
- Flame failure reignition time: 2 seconds maximum
- Ambient temperature rating: 40 to 175° (?40 to 80°C)
- Relative humidity: 95% noncondensing at 104°F
- Factory Model # SP845 (SP 845) 100-00834-41
Specs
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| Ignition Type: | Intermittent Pilot |
|---|
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Product Reviews
4.92 out of 51 reviews
100% would recommend this product
5 star
92%
4 star
8%
3 star
0%
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1 star
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Showing 1-10 of 51 reviews
Great Product!
Replace my 30-year-old unit. Works really well. The only difference was the missing mounting ears (plastic housing), which was not a big deal to drill and tap a couple of new holes.
Bill
Dayton, Ohio
1 years ago
Verified Buyer
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No need to shop anywhere else.
The staff at Supply House are very friendly and extremely knowledgeable best prices no need to shop anywhere else. Ordered my item and had it in three days normal shipping. Would like to just give a big shout-out to Supply House for having everything for my 70 plus year old steam boiler. Happy customer staying warm in Wyoming.
Thank you. Steve B.
Steve B.
Green River, Wyoming
4 years ago
Verified Buyer
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i would buy this product any time
We replace this improve, part is working 100% Great.
Thank You so much
lou
new york
5 years ago
Verified Buyer
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Great product with lock-out
Used for a 45 year old boiler with standing pilot to convert to intermittent ignition.
Property Maintenance Manager
Madison, WI
5 years ago
Verified Buyer
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I would use this Company again
Gas fireplace would not ignite in the middle of cold spell. Ordered and received Ignition Module and received within days. Great Service and price.
Coal Cracker
Washington, NJ
5 years ago
Verified Buyer
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Perfect replacement for the original
Easy install and furnace back up and running
Mike
San Francisco
5 years ago
Verified Buyer
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Perfect replacement
Shipped and delivered as promised
Brian
Northern PS
5 years ago
Verified Buyer
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Great product
Used these new control units to fix 2 gas fireplaces that had been inoperable for a couple of years.
Ted
Northern California
6 years ago
Verified Buyer
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Direct replacement for Lennox
Used this to replace Lennox Model No. SP 745 module. Worked perfect.
Geanie
Oklahoma
6 years ago
Verified Buyer
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Yes, for the mechanically inclined
The item was a direct fit. I might had to add a couple mods, but no big deal worked out great and is keeping the family warm this winter for whom it was for 😉✌
tmcd
Cleveland, OH
7 years ago
Verified Buyer
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Product Q&A
13 Questions13 Questions
Q: Will this replace SP 845
Asked by patrick 10 years ago
Add your answer
Verified Reply- SupplyHouse StaffYes, 780-845 is the same part as the SP845.
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Q: Hi I have a 100-00831-1 ignition module, is this a direct replacement?
Asked by Getting prepared for winter 14 years ago
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Verified Reply- PexSupply StaffYes, this is the substituted part.
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Q: does this require a sense feed back? I just bought this product and the pilot is on but not being sensed. The model i replaced is a sp745 with no sense terminal.
Asked by 14 years ago
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Verified Reply- PexSupply StaffPart 780-845 is the functional replacement for the Robertshaw SP745. If the spark isn't being sensed, there may be a wiring issue.
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Q: Does this replace model No. DS 845 NL-1-4
Asked by 14 years ago
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Verified Reply- PexSupply StaffNo, part 780-502 is actually the recommended replacement for the obsolete DS845-NL-1-4.
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Q: Does this replace the Lennox SP745? I don't see the IGN part after the sense. Thanks!
Asked by 15 years ago
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Verified Reply- PexSupply StaffYes, 780-845 is the listed replacement for SP745.
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- Tony Johnston
Yes it absolutely does. I replaced my Robertshaw Sp 745 with this unit and it worked perfect. Just pay close attention when you attach those leads. The IGN is attached on top of the new unit and one of your wires from the old unit no longer needs to be hooked up. I did mine side by side and had no trouble. Take a picture of how it was originaly wired for reference. If you dont get a spark you did it wrong. Make sure gas and elec is off during install. Happy heating!!! Oh yea it cost less than the original, WOW
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Q: I have an Omega radiant heater with a Robertshaw module model # DS-845 PR-3-7 that needs to be replaced what is the replacement part # ? Thanks.
Asked by Sparke 15 years ago
Add your answer
Verified Reply- PexSupply StaffAccording to the manufacturer, 780-501 ( http://www.pexsupply.com/Robertshaw-780-501-Direct-Spark-Ignition-Control-w-34-second-prepurge ) is the replacement for DS-845 PR-3-7.
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Q: WILL THIS MODEL REPLACE A ROBERTSHAW MODEL SP735L IGNATOR???
Asked by DOUG 15 years ago
Add your answer
Verified Reply- PexSupply StaffThe replacements for the SP735L ignitor are 780-002 or 780-845.
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Q: my propane furnace has a broken Robertshaw lockout module, sp715/sp715a or 018-00080. Is the cross number 780-845? If not what one is?
Asked by Glenn 15 years ago
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Verified Reply- PexSupply StaffThe replacement for that unit is 780-715.
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Q: I have a Heatilator fireplace (GC-300) that uses the DS845 ignition module. The module needs to be replaced. Heatilator Customer Service told me to use the Robertshaw 15695A module. When cross referencing this part I came up with a variety of numbers such as IGM 780-845A. Your staff replied on 2/3/11 that this is not the correct replacement part. What is the correct replacement part to use?
Asked by Ken 15 years ago
Add your answer
Verified Reply- PexSupply StaffAccording to the manufacturer, 780-501, 780-502, 780-503, and 780-504 are the replacements for the DS845. The one you need depends on the entire model number (i.e. what comes after 'DS845'). You may want to check with Heatilator on whether or not this was an OEM part.
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Q: will this replace a robertshaw sp745?
Asked by stugots 15 years ago
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Verified Reply- PexSupply StaffYes, it will.
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