Accessories & Co

Hydraulic ­Modules

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Accessories

Hargassner offers hydraulic modules in various designs for its Nano-PK and Smart-PK pellet boilers. The heat circuit/boiler pump, buffer charge/circulation pump and all piping are easily accessible. All hydraulic connections of the boiler are on the top.

Hydraulic module

Basic module IHM

This basic module IHM is the basis of all hydraulics. For customers where the heat circuits are mounted on the accumulator or on the wall, no extension is required. For systems with one heat circuit, the IHM1 extension is required. For systems without an accumulator tank, an IHM2 extension is required. The basic module is already prepared for the connection of a condensation heat exchanger.

Basic IHM module for Nano-PK 6–15 (+ combi boiler application)

Technology & scope of delivery

  • Return pump (left) Alpha 1 15/40
  • 130 mm installation length, ~230 V 50 Hz
  • 3-way return mixing valve (left) LK 840, AG 1″, kVs = 4.0
  • Mixer actuator 140 s / 90°, 10 Nm ~230 V 50 Hz
  • Safety group consisting of
  • 1/2″ 3 bar safety valve, vent valve and
  • 0-4 bar pressure gauge
  • 2 IT 1″ ball valves for back-end protection
  • Cu-pipe 22 mm for back-end protection
IHM base module for Nano-PK 20–32 & Smart-PK 17–32 (+ combi boiler application)

Technology & scope of delivery

  • Return pump (left) Para 15-130/6-43
  • 130 mm installation length, ~230 V 50 Hz
  • 3-way return mixing valve (left) LK 840, AG 1″, kVs = 6.3
  • Mixer actuator 140 s / 90 °,
  • 10 Nm ~230 V 50 Hz
  • Safety group consisting of
  • 1/2″ 3 bar safety valve, vent valve and
  • 0-4 bar pressure gauge
  • 2 ball valves IT 5/4″ for back-end protection
  • 28 mm copper pipe for back-end protection

Hydraulic Module

Extension IHM1

The IHM basic module can be supplemented by an integrated, mixer-controlled heat circuit group with extension IHM1. This variant is mainly used for customers with only one heat circuit and HWT or accumulator tank with hot water preparation. Thus, the entire hydraulic system is integrated in the boiler and no additional space is required.

CAUTION: This extension is supplied loose and has to be installed on-site.

Extension IHM1 for Nano-PK 6–15

Technology & scope of delivery

  • See IHM basic module
  • Heat circuit pump (right-hand) Alpha 1-15/60
  • 130 mm installed length, ~ 230 V 50 Hz
  • 3-way heat circuit mixer (right-hand) LK 840, ET 1″, kVs = 6.3
  • Mixer actuator 140s/90°, 10 Nm ~ 230V 50 Hz
  • 1 gravity brake IT 1″ downstream of heat circuit group
  • 2 ball valves IT 5/4″ for the heat circuit
  • Cu pipes 28 mm as heat circuit pipes
Extension IHM1 for Nano-PK 20–32 & Smart-PK 17–32

Technology & scope of delivery

  • See IHM basic module
  • Heat circuit pump (right-hand) Para 25-180/8-75
  • 130 mm installation length, ~230 V, 50 Hz
  • 3-way heat circuit mixer (right-hand) LK 840, ET 6/4″, kVs = 15
  • Mixer actuator 140s/90°, 10 Nm ~ 230V 50 Hz
  • 1 gravity brake IT 6/4 downstream of heat circuit group
  • 2 ball valves IT 6/4″ for the heat circuit
  • Cu pipes 35 mm as heat circuit pipes

Hydraulic Module

Extension IHM2

The IHM basic module receives a bypass line through the IHM2 extension, which acts as a hydraulic separator. This extension is only required for boilers with a manifold and corresponding heat circuits and must not be connected to the accumulator tank.

CAUTION: This extension is supplied loose and has to be installed in the boiler on-site.

Extension IHM2 for Nano-PK 6–15 / 20–32 & Smart-PK 17–32

Technology & scope of delivery

Nano-PK 6 – 15

  • Cu pipe 22 mm as internal hydraulic separator

 

Nano-PK 20 – 32 & Smart-PK 17 – 32

  • Cu pipe 28 mm as internal hydraulic separator

Hydraulic Module

Integrated piping IV

This pipe set includes an FL pipe and an RL pipe, which run from the boiler’s interior out through the rear wall. The piping can be extended upwards using a 90° bend onsite or be attached to the hydraulics directly. All the heating installation work on-site takes place outside the boiler.

Integrated piping IV for Nano-PK 6–15 / 20–32 & Smart-PK 17–32

Technology & scope of delivery

Nano-PK 6 – 15

  • Two Cu pipes 22 mm with FL and RL screw fittings

Nano-PK 20 – 32 & Smart-PK 17 – 32

  • Two Cu pipes 28 mm with FL and RL screw fittings