BACKGROUND:
Deionized water application requiring the recirculation of 3 gallons per minute to reach 66ºC in 2 hours. NEMA 4 moisture resistant housing was required.
SCOPE:
MCF – Large DI Water Heater:
- Temperature from 18ºC to 66ºC in 2 hours
- 316 Stainless Steel All wetted parts
- Pressure tested to 90 PSI
- NEMA 4 Housing
- RTD, 3-wire 100 ohm process sensor built-in near outlet
- An additional TC for bottom temperature read
- 16KW (± 10%) , 208 Volt, 3-phase
- Mounting threads on the bottom of the assembly
- Medium being heated: Deionized Water (DI Water)
- Recirculate at 3gpm
OUTCOME:
The heater zones were individually heated at lower voltage then pressure tested up to 90 PSI at 20ºC - 25ºC. The typical ramp temperature for a bench test prior to shipping is 100ºC. The response time in an air medium environment was immediate as the temperature was achieved in under 20 minutes. All zones passed the recommended 700 VDC for 5 seconds on the Hi-Pot test prior to shipping. The heater was cleaned & packaged then sent out for delivery.