The HES-3AC is a titanium heat exchanger system designed to work in conjunction with single straight cool air conditioning unit with capacity from 30,000 BTU to 42,000 BTU (2.5 to 3.5 tons). It requires 29 GPM minimum water flow, with recommended 35 GPM water flow during the hottest time of the year.

The HES-3AC model includes:

1. Titanium Heat Exchanger Canister

2. LCD controller

3. Thermo Sensor with Protective Shell

4. 3-Way Heat Recovery Valve

5. 24 V coil for Heat Recovery Valve

6. Multi Voltage Transformer w/bridges

7. PG11 and PG13 connectors

Price: $1,795

We encourage you to purchase HVAC “Straight Cool Kit”.  The kit contains additional parts and materials that your installer will need. The “Straight Cool Kit” can be provided by the installer of your choice or purchased from us at our cost. Due to unique specification of these parts, they might be unavailable or hard to find in your local area. 

The “Straight Cool Kit” includes:

1. 2 pcs. Check valves on 3/8” or 1/2”

2. Interruption relay 90-340

3. Pressure sensor Tecmark 3010P

4. Sensor Cover

5. Solenoid Valve E6S130-HP

6. Additional 24 V Coil

7. Additional PG11 connectors

Price: $295