Chromalox 2104 Instrukcja Użytkownika Pobierz pdf (Strona 8)

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User Instructions

Section 2

Installation

Hydraulic Installation Open-Loop Cooling

Hydraulic Installation Closed-Loop Cooling

Electrical Installation

Section Contents

Before

Open-Loop

Hydraulic Installation

Before proceeding with the installation of the open-loop system,

please take note of the following important information:

1. Reduced diameter fittings may be used if they do not reduce

flow rate and increase pressure drop significantly. Galvanized

steel unions are recommended at all connections.

2. If water pressure falls below 20 psi, a pressure switch will

interrupt pump motor and heater operation. Use an external

water pressure regulator and back pressure relief valve or

regulator set at maximum 125 psi, connected in the external

fill line, to reduce excessive water pressure.

Hazard of Explosion, Fire and Scalding Burns

1. The water feed line on both open and closed loop systems

must not have any obstructions which could prevent

expanding water from backing up into the feed line.

2. Do not use oils or other synthetic heat transfer fluids. This

system is for use with water or ethylene glycol and water

mixture for freeze protection only as the heat transfer fluid.

3. When installing system, allow sufficient room to remove the

heater element and other serviceable items when necessary.

18 inches clearance on sides of unit recommended.

4. If the water source is a potable water source, a back flow

preventer and back pressure relief valve/regulator should be

installed and may be required by local code. Do not install a

check valve only on the fill line. The inability of the system

to flow back into the fill line can lead to excessive pressure.

Back pressure relief is required.

5. To avoid excessive pressures, do not connect any valves or

obstructions which could prevent free discharge from relief

valve in a safe manner. Route line so water drains

completely. Do not allow drain to freeze or corrode shut.

WARNING

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Chromalox 2104 Instrukcja Użytkownika Strona 8