Nortec ME Control Installation - Manual (Page 28)

28 Installation
– Notes on water supply
– The water supply is to be carried out according to the figures found in chapter 4.4.4 – Mount-
ing the control unit and 4.4.3 – Water installation (external installation) and the applicable local
regulations for water installations. The indicated connection specifications must be observed.
The installation material must be supplied by the customer.
– The installation of a shut-off valve in the supply line is mandatory and should be made as close
as possible to the hydraulic module.
– Regarding supply water quality see appendix.
– The installation material must be pressure-proof and certified for use in drinking water supply
systems.
– The wall feed through for the water supply must be done by the customer.
Important: after installation the water supply pipe has to be sealed around the feed through
using silicone-free sealant.
– Important! To prevent new systems being contaminated with low quality water the entire
water supply line must be flushed and tested until the supply water and the bacteria counts,
are in line with the water quality specifications, before connecting it to the hydraulic
module. For water quality requirements refer to chapter 5.1 – Inlet water quality requirements.
– Notes on water drain
– The water drain is to be carried out according to the figures found in chapter 4.4.4 – Mounting
the control unit and 4.4.3 – Water installation (external installation) and the applicable local
regulations for water installations. The indicated connection specifications must be observed.
The installation material must be supplied by the customer.
– Make sure the drain line is installed with a constant down-slope down to the tundish.
– The drain pipe must not touch the tundish, allow air gap of min 20 mm (0.8").
– Make sure the drain pipe, the drain trap and the tundish are correctly fixed and easily accessible
for inspections and cleaning purposes.
– Access hole for the drain pipe through the duct/AHU must be provided by the customer.
Important: after installation the drain pipe has to be sealed around the feed throughs us-
ing silicone-free sealant.
– The minimum inside diameter of the drain pipe must be maintained throughout the entire length!
– The drain pipe must be vented to the interior of the duct in accordance with the figures found in
chapter 4.4.4 – Mounting the control unit and 4.4.3 – Water installation (external installation).
– Notes on pressure equalisation for external mounted systems
– The hydraulic module must be equipped with a pressure equalisation pipe connected to the
interior of the duct to ensure the level in the hydraulic module corresponds with the level in the
tank inside the duct (see figure in chapter 4.4.3 – Water installation (external installation).