Model: NL-HJS-1
The problem
Large finished products such as spa tubs and pool equipment must undergo energy consumption and high-low temperature testing at -30 to 70C - a ordinary chamber cannot even take them through the door. A self-built cold store often brings three traps: uneven temperature that corrupts the data, no test power or plumbing inside the room, and tub filling and draining done with temporary hoses.
Capability
The room is built to cold-store practice: 150mm thick B1 fire-retardant panels (core density at least 40kg/m3) form an 8.5x5x2.9m effective space of about 42.5m3, held at -30 to 70C with 0.5C uniformity by a 10HP compressor with complete indoor and outdoor air-cooled condensing units. Whole tubs enter through the 3x2m double door with stainless frame and lock, and two pressure-balancing windows steady the differential. The power box feeds the sample from both a variable and the mains supply - three-phase 5x6 with breaker, quick connector and 3x10A plus 3x16A sockets, up to 48A single phase. A DN65 water inlet with 63mm ball valve fills in place, a DN65 drain with a 50mm floor drain empties it, and no line holds standing water. Ten thermocouple posts bring tub and room points into one synchronized record, delivered as a turnkey installation ready for third-party calibration.
Applicable standards
The temperature test methods follow the relevant clauses of the GB/T 2423 series (high and low temperature testing); product energy and safety assessment items follow the customer technical agreement and the product specification; the room construction follows cold-store engineering practice.
Key specifications
- Effective volume: about 42.5m3 (internal 8.5x5x2.9m)
- External size: 8.8x5.3x3.2m
- Temperature range: -30 to 70C
- Uniformity: 0.5C (humidity not required, per customer process)
- Panels: 150mm cold-store panels, 0.426mm steel both faces, core density at least 40kg/m3, B1 fire-retardant; floor panels 0.6/1.0mm
- Base frame: No.8 channel steel under floor panels
- Door: 3x2m double door, stainless frame, with lock
- Balancing windows: 2 pressure-balancing windows
- Refrigeration: 10HP compressor with complete indoor/outdoor air-cooled system
- Sample power: variable + mains dual three-phase 5x6, breaker, quick connector, 3x10A + 3x16A sockets, max 48A single phase
- Water inlet: DN65 with 63mm ball valve, right wall at 1.5m height, about 4m line
- Drain: DN65 drain (1m height, about 3.5m line) plus 50mm floor drain, no standing water
- Temperature sensing: 10 thermocouple posts with thermocouple wires, stud fixing
- Lighting: six 220V 20W cold-store lamps
Applications
Energy consumption and high-low temperature laboratories at spa tub and pool equipment plants; environmental qualification of two-metre-class finished units; turnkey walk-in rooms for third-party laboratories
About the manufacturer
Guangdong Endurance Electronic Equipment Co., Ltd provides non-standard customization, drawing confirmation, factory acceptance, on-site installation and commissioning, operation training and long-term technical service; 12-month warranty and long-term spare parts supply. Tel: 0760-88500902 / 13416787649. Web: en.zsnaili.com.
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