Product Overview

HydroMixer
direct distribution unit
for heating systems
165 series
Function
The 165 series HydroMixer
TM
provides high temperature flow direct
to secondary heating circuits, complete with onboard three-speed
or variable-speed pump, supply and return temperature gauges,
secondary circuit shut-off ball valves and pre-formed insulation shell.
Versions are available with either the three-speed Grundfos UPS
15-58 pump or the variable-speed Alpha 25-55U pump.
The unit can be ordered with supply flow and pump on the right or
left side, and the unit is field reversible to accommodate changing
installation requirements. The adjustable differential pressure by-pass
valve, code 519600 and wall bracket code 165001 are optional. The
unit comes with male union connections which require separately
purchased, 1 inch sweat or HPT, top outlet or bottom inlet fitting kits.
Product Range
Code 165600A Direct distribution unit with Grundfos UPS 15-58 pump on right side...............................................connections 1” sweat or NPT union*
Code 165610A Direct distribution unit with Grundfos UPS 15-58 pump on left side.................................................connections 1” sweat or NPT union*
Code 165602A Direct distribution unit with Grundfos Alpha 25-55U pump on right side...........................................connections 1” sweat or NPT union*
Code 165612A Direct distribution unit with Grundfos Alpha 25-55U pump on left side............................................connections 1” sweat or NPT union*
*Fitting sets sold separately
CALEFFI
Technical Characteristics
Materials
Connecting pipes
Material: steel
Check valve
Body: brass
Shutter: PPAG40
Shut-off ball valves
Body: brass
Performance
Suitable fluids: water, glycol solutions
Max. percentage of glycol: 30%
Max. working pressure: 145 psi (10 bar)
Max. working temperature: 212°F (100°C)
Connections: male union threads
- top outlets: 1-1/4” male straight
- bottom inlets: 1-1/2” male straight
- inlet/outlet center distance: 5 inches (125 mm)
Pump
Three-speed pump: Grundfos: UPS 15-58-130;
Variable-speed pump: Grundfos: ALPHA 25-55U;
Body material: cast iron
Power supply: 115 V 50/60 Hz
Protection class: Class F
Pump center distance: 5-1/8” (130 mm)
Pump connections: 1 1/2” male straight
Temperature gauges
Dual scale: 32 –176°F (0 80°C)
Technical specification of insulation
Material: EPP
Thickness: 1-1/8” (30 mm)
Density: 3 lb/ft
3
(45 kg/m
3)
)
Working temperature range: 25 – 250°F (-5 120°C)
Thermal conductivity: 0.256 BTU·in/hr·ft
2
· °F(0.037 W/m·K)
at 50°F (10°C)
Fire resistance (UL94): class HBF
Adjustable Differential by-pass valve code 519006 (optional)
Body: brass
Valve plug: EPDM
Spring: stainless steel
Seals: EPDM
Max. working pressure: 145 psi (10 bar)
Max. working temperature: 212°F (100°C)
By-pass differential pressure setting range: 0.3 – 4.3 psi (2 30 kPa)
Connections: 1” male x 1” male (straight)
Wall bracket code 165001 (optional)
Material: stainless steel
ACCREDITED
ISO 9001 No. 0003
ISO 9001 FM 21654
01237/13 NA

Summary of content (6 pages)