Series HRZ Specific Product Precautions 1 Be sure to read this before handling. Refer to front matter 41 for Safety Instructions and pages 1246 to 1249 for Temperature Control Equipment Precautions. Standard item Reference item Item pH (at 25°C) Electrical conductivity (25°C) Chloride ion (Cl.) Sulfuric acid ion (SO4 2.) Acid consumption amount (at pH4.8) Total hardness Calcium hardness (CaCO3) Ionic state silica (SiO2) Iron (Fe) Copper (Cu) Sulfide ion (S2 .) Ammonium ion (NH4 +) Residual chlorine (Cl) Free carbon (CO2) Unit . [μS/cm] [mg/L] [mg/L] [mg/L] [mg/L] [mg/L] [mg/L] [mg/L] [mg/L] [mg/L] [mg/L] [mg/L] [mg/L] Standard value Influence Corrosion Scale generation 6.0 to 8.0 100. to 300. 50 or less 50 or less 50 or less 70 or less 50 or less 30 or less 0.3 or less 0.1 or less Should not be detected. 0.1 or less 0.3 or less 4.0 or less �ｱ �ｱ �ｱ �ｱ �ｱ �ｱ �ｱ �ｱ �ｱ �ｱ �ｱ �ｱ �ｱ �ｱ �ｱ �ｱ �ｱ . In the case of [MΩ�縦m], it will be 0.003 to 0.01. �� �ｱ: Factors that have an effect on corrosion or scale generation. �� Even if the water quality standards are met, complete prevention of corrosion is not guaranteed. Design Warning 1. This catalog shows the specifications of a single unit. 1. For details, please consult our “Product Specifications” and thoroughly consider the adaptability between the customer’s system and this unit. 2. Although the protection circuit as a single unit is installed, the customer is requested to carry out the safety design for the whole system. Selection Caution Handling Warning 1. Thoroughly read the Operation Manual. Read the Operation Manual completely before operation, and keep this manual available whenever necessary. 1. Model selection In order to select the correct Thermo-chiller model, the amount of thermal generation from the customer’s system, the operating circulating fluid, and its circulating flow are required. Select a model, by referring to the guideline to model selection on page 1320. 2. Option selection Options have to be selected when ordering the Thermo-chiller. It is not possible to add them after purchasing the unit. Operating Environment/Storage Environment Caution 1. Do not use in the following environment because it will lead to a breakdown. 1. Environment like written in “Temperature Control Equipment Precautions.” 2. Locations where spatter will adhere to when welding. 3. Locations where it is likely that the leakage of flammable gas may occur. 4. Locations where the ambient temperature exceeds the limits as mentioned below. During operation 10°C to 35°C During storage 0°C to 50°C (but as long as water or circulating fluid are not left inside the pipings) 5. Locations where the ambient relative humidity exceeds the limit as mentioned below. During operation 30% to 70% During storage 15% to 85% 6. (Inside the operation facilities) locations where there is not sufficient space for maintenance. 7. In locations where the ambient pressure exceeds the atmospheric pressure. 2. The Thermo-chiller does not have clean room specification. It generates dust from the pump inside the unit and the cooling fan for the unit inside. Circulating Fluid Caution 1. Avoid oil or other foreign objects entering the circulating fluid. Circulating Fluid Clear Water (as Circulating Water) Quality Standards The Japan Refrigeration and Air Conditioning Industry Association JRA GL-02-1994 “Cooling water system . Circulating type . Supply water” 2. Use ethylene glycol that does not contain additives such as preservatives. 3. The condensation of ethylene glycol aqueous solution must be 60% or less. If the density is too high, the pump will be overloaded, resulting in occurrence of “Pump Breaker Trip FLT”. Also, if the density is to low, the unit will freeze at lower temperatures, resulting in product failure. 4. Avoid water moisture entering the fluorinated fluid. Otherwise, the unit will freeze, resulting in product failure. 5. Use clear water (including for diluting ethylene glycol aqueous solution) which must meet the water quality standards as mentioned below. Transportation/Transfer/Movement Warning 1. Transportation by forklift 1. It is not possible to hang this product. 2. The fork insertion position is either on the left side face or right side face of the unit. Be careful not to bump the fork against a caster or level foot and be sure to put through the fork to the opposite side. 3. Be careful not to bump the fork to the cover panel or piping ports. 2. Transportation by casters 1. This product is heavy and should be moved by at least two people. 2. Do not grip the pipings on the rear side or the handles of the panel. Fork insertion side Front side Rear side Fork insertion side 1344