Direct Vent Power Supply Switched or not?

[Mayf]

I am installing a Superior DRL 2055 direct vent fireplace, and I'm using a heat flow accessory duct near the ceiling, so there will be no fan. I have a question on the power supply. In the install manual it says, "Route a 3 wire 120V power supply to the fireplace junction box", and in the diagram, it specifies that the power supply be "unswitched"

My thoughts are if a A/C unit and a furnace both have power shut offs within reach of the unit why shouldn't a gas fireplace have an electrical shut off?

Any advice is much appreciated
Thank You

 

[DAKSY]

There is usually a junction box in the valve cavity that will receive that I switched wiring. The junction box is required to power up the control module whether or not you install a blower.

 

[Mayf]

DAKSY
I appreciate your help. Yes, there is an access panel, and inside the panel are the power wire pigtails to the internal outlet, so I want to bring my power supply to a wall switch box and run the black power wire thru the switch as a power control. But the manual says unswitched. So it confused me a little. I couldn't think of any reason to have the power uncontrolled. Thank You

 

[begreen]

Related to this note in the manual:

NOTE: Electronic models must be connected to the main power supply.

 

[Mayf]

Related to this note in the manual:

NOTE: Electronic models must be connected to the main power supply.

Thank You for the response. I'm trying to confirm is can I run the power supply thru a wall switch, because for some reason the install manual says the word "unswitched power". I've installed A/C systems and forced air furnace systems and wiring, and they always have a power supply switch near the unit. So this manual goes against common sense?

 

[begreen]

That's a service disconnect which is typically required by mechanical code.

On page 39 of the manual I read for this model, it does not say unswitched. It says:

Electronic Wiring DRL2000 series
One of the following optional controls must be used:
• ON/OFF Wall Switch,
• Thermostat, or
• Remote Control

https://cdn.shopify.com/s/files/1/0686/3156/0499/files/900994-00_L_SUP_DRL2000_DRL3500_35-45-55_TEN-TEP_DV_FP_SIT-PF1_PF2_IICO.pdf?v=1681598103

 

[Mayf]

That's a service disconnect which is typically required by mechanical code.

On page 39 of the manual I read for this model, it does not say unswitched. It says:

Electronic Wiring DRL2000 series
One of the following optional controls must be used:
• ON/OFF Wall Switch,
• Thermostat, or
• Remote Control

https://cdn.shopify.com/s/files/1/0686/3156/0499/files/900994-00_L_SUP_DRL2000_DRL3500_35-45-55_TEN-TEP_DV_FP_SIT-PF1_PF2_IICO.pdf?v=1681598103

It's confused me on page 41 under the Wiring step by step there is a small diagram where it says unswitched

 

[Mayf]

It's confused me on page 41 under the Wiring step by step there is a small diagram where it says unswitched

I will have a timer control on the wall, and I think the unit could use a service disconnect for the high voltage wiring. Just a on/off switch. Thank you for all the advice.

 

[begreen]

It's confused me on page 41 under the Wiring step by step there is a small diagram where it says unswitched

That's for a plug. An accessible plugin receptacle is an acceptable service disconnect substitute for a switched, hard wired connection.

 

[Mayf]

A plugin receptacle is an acceptable service disconnect substitute for a switched, hard wired connection

That's for a plug. An accessible plugin receptacle is an acceptable service disconnect substitute for a switched, hard wired connection.

There is an internal outlet inside the unit with those 4 - red, black, white, and green wire pigtails on the lower corner with a 1/2 " knockout access for, and there are also the brown low voltage control valve to control wires.
For the 120V power wires I wanted to have a service/safety wall switch to shut off the power if ever needed. because the fireplace will be surrounded by tile.
So what seems right is to start off with line wire, thru a switch for service disconnect or a safety shut off, and then to the junction box/outlet located inside the fireplace. Is that correct?

 

[Mayf]

Thanks for all the help and advice. This a great resource.

 

[Millbilly]

I will have a timer control on the wall, and I think the unit could use a service disconnect for the high voltage wiring. Just a on/off switch. Thank you for all the advice.

So you are going to have a timer control and a switch for the power? I would not do this. It does nothing but confuse other users. The cleaners and other people will be constantly flipping the "light switch". That switch is also just one more thing to fail. I would follow the manufacturers instructions and wire it unswitched. Just be sure to mark the breaker that serves it. This is being over thought IMHO.

 

[Mayf]

So you are going to have a timer control and a switch for the power? I would not do this. It does nothing but confuse other users. The cleaners and other people will be constantly flipping the "light switch". That switch is also just one more thing to fail. I would follow the manufacturers instructions and wire it unswitched. Just be sure to mark the breaker that serves it. This is being over thought IMHO.

Thanks for clarifying this, I am an admitted overthinker, I'd rather ask before making a mistake. CYA, and like you said KISS is best Happy Holidays

 

[Mayf]

Another power supply question, I've seen many posts that suggest wiring a J box with an outlet to inside the wall cavity and then use a cord with a male plug from the fireplace for the connection. And I've seen just as many that say that isn't a serviceable junction, so they recommend the junction outside the framing, and hard wire straight to the fireplace?
Thank you to DAKSY, begreen, and Millbilly

 

[begreen]

It's only a service disconnect if easily accessible.

 

[Mayf]

It's only a service disconnect if easily accessible.

That's what I've been asking should a service shut off be mounted close the the unit?