Lifting & Leveling Tips
Lifting & Leveling Tips
- Before the chiller is positioned, concrete foundation plinths must be molded and leveled. The level degree is <1.5%, height of foundation is 150~300mm. When machine room height allows, the higher, the better for maintenance. Then locate the chiller without bolts. (If there is strong vibration source or a special anti-vibration requirement, it should be stated before placing order). The pumpset shall be fixed by anchor bolts. The foundation must be level and solid to make sure no sink or overload (when the unit is installed on rooftop).
- Lifting must be done by qualified lifting companies that are properly insured.
- The crane must be supported by cross ties and firm foundation to prevent it from sinking. Check the crane steel ropes and hooks before lifting to prevent any accident. The lifting intersection angle must be less than 90°. It is strictly prohibited to lift the chiller with a single steel rope. When the chiller is lifted 20mm above the carriage or the ground, it should be kept for a little while. Lift the chiller slowly if everything is OK.
- If limited by loading height, loading angle or machine room access, the professional lifting company must make special plan with BROAD team together to avoid any risks.
- The landing of the chiller must be with care. Crash landing is strictly forbidden! As the unit is a vacuum device, any impact on the chiller is strictly forbidden!
- When moving the chiller, only round steel tubes or thick steel tubes can be used as rollers instead of wooden sticks. Only drag the dragging hole on the rolling steel, do not place forces on other part of the chiller. Lift the unit first with jacks under the rolling steel before rigging. Both sides of HTG and main shell must be lifted simultaneously.
- For multiple chillers of split shipment, please make sure the original matching between HTG and the main shell. Please locate the chiller according to chiller joint drawing and make sure the joint gap is less than 1.5mm.
- After chiller positioning, please adjust leveling and lay thin steel plate where it is uneven to guarantee compact contact between the chiller and base. Take tube sheet as the leveling point and make front/rear and left/right leveling (check level height of every part by acrylic tube). It should be leveled within 0.8/1000 both lengthwise and sidewise. Leveling must be done within 2 hours after locating the chiller, otherwise the chiller base will be damaged.
- The chiller must be located levelly and its steel frame bases must match the plinth, the weight of the chiller must be evenly balanced on the plinth. Otherwise, the chiller may be twisted slowly, which will finally result in damage due to leakage.
- The chiller should be protected by full time personnel during transportation & installation. No access for unauthorized persons. Valves of the chiller are forbidden to be screwed. If the machine room is still under construction, precautions are essential to avoid chiller get damaged or dirty. No scraping the paint or insulation layer.
- Solution is charged into the chiller if a unit is shipped in one piece. The solution will be shipped separately for split shipment or a unit shipping weight is over 30 tons.
- BROAD can arrange transportation and insurance on behalf of customers. If customers manage it by themselves, please refer to "BROAD Chiller Packing & Transportation Regulations" for container arrangement in advance, so as to ensure safe transportation.
- When the unit reaches the machine room, the split pieces need to be connected by BROAD welders. The customer needs to prepare welding facilities, nitrogen and other necessary assistance.
Lifting & Leveling Tips
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Sketch of leveling and foundation
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