BAYHTR1523BRK – HEAT KIT (20 KW, TEM & 5TEM, 81-0703-01)

Trane supplementary electric heater kit, nominally 20 kW, single phase, with a factory circuit-breaker package. Trane Supply catalogs the current revision as BAYHTR1523BRKA, description “HEATER 20KW-1PH”. Installer’s Guide 18-HB22D1-14 rates it at 19.2 kW / 65,600 BTUH at 240V and 14.4 kW / 49,200 BTUH at 208V over two circuits, and lists it in the TEM4/A4AH4, TEM6 and TEM8 heater matrices – approval is model-specific, so check the matrix and the unit nameplate. The supplied breakers act as a service disconnect only.

Specifications published by the manufacturer. Source: manufacturer documentation.

Specs

• BrandTUTCO
• Nominal rating20 kW
• Capacity @ 240V19.2 kW / 65,600 BTUH
• Capacity @ 208V14.4 kW / 49,200 BTUH
• Heater amps per circuit @ 240V40.0/40.0
• Heater amps per circuit @ 208V34.6/34.6
• Number of circuits2
• Phase1
• DisconnectCircuit breaker (BRK)
• Current Trane Supply numberBAYHTR1523BRKA
• Approved air handler familiesTEM4, TEM6, TEM8, A4AH4 (model-specific, per heater matrix)
• Source documentInstaller's Guide 18-HB22D1-14
• Sold AsTUTCO-built kit, OEM equivalent

Cross-reference numbers

This part replaces the following OEM and aftermarket numbers:

• 81-0703-01
• BAYHTR1523BRKC
• BAYHTR1523BRKA

Not sure if your number matches? Call (214) 340-9421 or bring the old part in — bench-testing is free.

Fits these models

• Trane / American Standard TEM4 and A4AH4 air handlers
• Trane / American Standard TEM6 air handlers
• Trane / American Standard TEM8 air handlers
• Per Installer's Guide 18-HB22D1-14 heater matrices
• Approval is model-specific - check the matrix and the unit nameplate before ordering

How do I size a heat kit for my air handler?

Match the kW rating to your air handler's tonnage: - 10 kW -- fits 1.5, 2, or 2.5 ton air handlers - 15 kW -- fits 3, 3.5, or 4 ton air handlers - 20 kW -- fits 5 ton air handlers

Can I add electric heat to my heat pump system?

Yes -- heat pumps almost always use electric strips as backup ("auxiliary heat" or "emergency heat"). The thermostat energizes the strips when outdoor temps drop below balance point (typically 35-40 degrees F in DFW). Match the heat kit to your air handler model.

What does the suffix on the part number mean?

The suffix typically indicates breaker configuration: - BRK = factory breaker included - BR = breakerless (you provide the disconnect) - Other suffixes = circuit count, voltage taps, or thermostat compatibility

How long does an electric heat kit last?

20+ years typical for the kit itself; individual heating elements (sheath heaters) may fail in 8-15 years from cycling. Most kits have replaceable elements -- you don't have to replace the whole kit for one bad strip.

Why is my heat kit tripping the high-limit?

Restricted airflow is the #1 cause: clogged filter, dirty blower wheel, undersized return, closed-off supplies. The strips overheat when air doesn't move across them fast enough. Diagnose airflow before condemning the heat kit or limit switch.