Refrigeration products for any industrial applications and requirements

EFFICIENT COLD


Dual discharge for NH3

The evaporators manufactured by FRIMETAL are designed to satisfy all the requirements of today's refrigeration market.

Dual discharge evaporators designed for use in fast cooling tunnels of medium or low temperatures where high air pressure is required, together with perfect air distribution through the product located on the pallets.

Manufactured with stainless steel tubes with options AISI-304L or AISI-316L expanded over aluminium fins.

Designed to work with refrigerant ammonia pumped, gravity feeding or direct expansion DX system. These units can also work with other refrigerants (R-404A, water-glycol, etc.) as an alternative to the standard copper tube models GR when the ambient condition inside the cold room is harmful for copper.

The evaporator must be placed in the centre of the tunnel ceiling and must occupy the entire length of the tunnel. The pallets holding the product must be located lengthways on both sides, separated by a central aisle for the air returning to the fans.

Series
Fin spacing
Application
TNHM
4,2 mm
Medium temperature tunnels
TNHB
7 mm
Medium temperature tunnels
TNHL
9 mm
Low temperature tunnels
TNHX
12 mm
Very low temperature tunnels down to -40ºC

CHARACTERISTICS

  • Casing manufactured in aluminium sheet and galvanized steel coated in white polyester RA002 resin of high resistance
  • Steel galvanized supports for anchoring to the ceiling
  • Axial three phase fan motors at 400V/50Hz of two types:
    • Diameter 630: external rotor, protection IP-54 and thermal protection (thermocontact)
    • Diameter 710: tubular aerofoil typy of high pressure and air flow with protection IP-55

SPECIFIC OPTIONS OF THIS RANGE

  • All kind of defrosting systems: by electric heaters, hot gas, cycle inversion and water spreading.
  • Round heaters for the fan motors ducts.
  • Anti condensation insulated drip tray.
  • Special custom-made evaporators adapted to the dimensions of the tunnel can also be manufactured on request.
DOWNLOAD CATALOGUE DOWNLOAD MANUAL