Electric Water Heaters

[globe trekker]

I have a Commercial project (an I-2 occupancy group) that is proposing to install

a new electric water heater. On the manufacturer' web site, the manufacturer lists

the particular water heater as a Residential type.

QUESTION #1: Can a Residential type of water heater be used in a Commercial

project?

Thanks for your input!

.

 

[mtlogcabin]

What defines the difference between a commercial or residential water heater. I can't find it in the code.

If it is just a manufactures classification then I would look at the manufactures installation instructions for approval.

 

[globe trekker]

mtlogcabin,

Thanks for the input! I am unable to find any differences on the manufacturer'

web site (Rheem). The normal NEC requirements for installation seem to be

compliant from what I can can read.

I saw the Residential statement on their web site and I started wondering.

.

 

[mtlogcabin]

It seems the Rheem commercial electric water heater is available in 208, 240, 277 and 480 voltages and 3 phase options, residential would be single phase 240 volts.

 

[globe trekker]

QUESTION #2: Is a physical therapy center considered a health care

occupancy, or medical (treatment) facility? RE: Article 517.2 in the 2008

NEC, Definitions.

I have some electrical physical therapy equipment for the treatment

of patients that will be installed in a new I-2 occ. group building.

Some of the equipment I am wondering about is:

(a) a light therapy (anodyne therapy) machine, &

(b) a stationary treadmill

The light therapy (anodyne therapy) equipment appears to be in question?

Any physical therapy equipment experts on here?

.

 

[Gregg Harris]

QUESTION #2: Is a physical therapy center considered a health careoccupancy, or medical (treatment) facility? RE: Article 517.2 in the 2008

NEC, Definitions.

I have some electrical physical therapy equipment for the treatment

of patients that will be installed in a new I-2 occ. group building.

Some of the equipment I am wondering about is:

(a) a light therapy (anodyne therapy) machine, &

(b) a stationary treadmill

The light therapy (anodyne therapy) equipment appears to be in question?

Any physical therapy equipment experts on here?

.

The recovery rate of the hot water heater along with the voltage rating is the only difference between the residential/ commercial.

The light therapy is quite comforting for injury healing. My chiropractor uses it along with "Russian Stem" on me all the time.

 

[Paul Sweet]

I believe the main difference between residential & commercial water heaters is the manufacturers warranty. The same water heater will often have a warranty twice as long for residential use than for commercial use. Commercial water heaters are also available in 3 phase and higher wattages.

 

[Msradell]

QUESTION #2: Is a physical therapy center considered a health careoccupancy, or medical (treatment) facility? RE: Article 517.2 in the 2008

NEC, Definitions.

I have some electrical physical therapy equipment for the treatment

of patients that will be installed in a new I-2 occ. group building.

Some of the equipment I am wondering about is:

(a) a light therapy (anodyne therapy) machine, &

(b) a stationary treadmill

The light therapy (anodyne therapy) equipment appears to be in question?

Any physical therapy equipment experts on here?

But that of information do you have regarding the equipment? We're both fairly conventional and common. In most cases they just use a conventional 120v receptacle for power. Neither will require a considerable amount of power (the treadmill probably will take more) and the power requirements should be listed on the device.

 

[Gregg Harris]

QUESTION #2: Is a physical therapy center considered a health careoccupancy, or medical (treatment) facility? RE: Article 517.2 in the 2008

NEC, Definitions.

I have some electrical physical therapy equipment for the treatment

of patients that will be installed in a new I-2 occ. group building.

Some of the equipment I am wondering about is:

(a) a light therapy (anodyne therapy) machine, &

(b) a stationary treadmill

The light therapy (anodyne therapy) equipment appears to be in question?

Any physical therapy equipment experts on here?

.

It would be considered a health care facility and part I of 517 would apply but not part II.

2009 IBC 304.1.1 Clinic Outpatient