The HES-2AC is a titanium heat exchanger system designed to work in conjunction with single straight cool air conditioning unit with capacity from 18,000 BTU to 30,000 BTU (1.5 to 2.5 tons). It requires 15 GPM minimum water flow, with recommended 20 GPM water flow during the hottest time of the year.ear.

The HES-2AC 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: $1,695

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