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Overload Heater Size Chart

Overload Heater Size Chart - Refer to the specified table and use the controller size and motor amps to Heater table number is found in the column under the type of overload and phase. Web therefore, the minimum size heater recommended for a 15 x 30 pool is 150,000 btus. I tend to pick overload heaters from the manufacturer's overload heater chart and not the book anyhow. Heater selection — type a and b overload relays, sizes 3 and 4. Each heater is identified by a catalog number stamped on one terminal. Web match the trip amps of your starter to the trip amps value below the starter size of the appropriate table. Heater table number is found in the column under the type of overload and phase. Find heater table number below, using the product class, controller size and phase. Web for fully reliable motor protection, select heater coils on the basis of full load current rating as shown on the motor nameplate.

The job of a pool heater is to replenish the heat loss at the surface of your pool. Select in order, the base catalog number, the nema type of enclosure, and the column to be used in the proper table by nema size. The size 1 and 2 olr’s have a maximum current rating of 26.2 and 45.0 amperes respectively. Web a class 20 overload relay will trip in 20 seconds or less at a current equal to 600 percent of its rating. Web a class 30 overload relay will trip in 30 seconds or less at a current equal to 600 percent of its rating. Web the best (and easiest) way to size a new pool heater is to calculate the surface area of your pool, and use one of the previously mentioned equations to find the minimum recommended btu output. Standard ceramic ntip size chart. Find heater table number below, using the product class, controller size and phase. The size 3 and 4 olr’s have a maximum current rating of 90 and 133 amperes respectively. Catalog numbers are for 3 heater packs.

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This is simply the recommended minimum size. If motor amps are not known, an Web the type a thermal overload relay (olr) is a bimetallic device which, with the properly selected wire and heaters, will provide motor protection for running and stalled rotor overloads in motor circuits not exceeding 600 volts. Web to select heater catalog number use b product class b controller size b motor amp b phase 1.

Each Heater Is Identified By A Catalog Number Stamped On One Terminal.

Web for fully reliable motor protection, select heater coils on the basis of full load current rating as shown on the motor nameplate. Web the table below should be used to determine which column of motor full load amperes applies for heater selection. Especially when it comes to gas heaters, you always want to oversize the unit. Find heater table number below, using the product class, controller size and phase.

If Motor Amps Are Not.

The choice should be as close as possible but not greater than the selected trip amp value in the table to allow for proper protection. Web standard trip — class 20 heater selection. Web the type a thermal overload relay (olr) is a bimetallic device which, with the properly selected wire and heaters, will provide motor protection for running and stalled rotor overloads in motor circuits not exceeding 600 volts. The job of a pool heater is to replenish the heat loss at the surface of your pool.

Refer To The Specified Table And Use The Controller Size And Motor Amps To

Web the best (and easiest) way to size a new pool heater is to calculate the surface area of your pool, and use one of the previously mentioned equations to find the minimum recommended btu output. Web controller size motor amp phase 1. Single phasemotor full load amps of the same horsepower, voltage and speed vary over wide ranges. Refer to the specified table and use the controller size and motor amps to select the heater catalog number.

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