Why the installation environment belongs in the RFQ
A redemption machine is not installed in a laboratory. It may operate in an air-conditioned family entertainment center, a semi-open shopping arcade in the Gulf, a coastal resort exposed to salty air, or a Latin American venue where supply voltage fluctuates during peak demand. Two sites in the same city can impose very different stresses. A cabinet beside an exterior entrance experiences more dust and warm air than one in an enclosed game room. A machine beneath an air-conditioning outlet may face repeated condensation even when the room average appears acceptable.
For buyers, the central lesson is simple: climate and power conditions are purchasing specifications, not after-sales surprises. A quotation based only on game type, dimensions, and price leaves the manufacturer to assume a normal indoor environment. If the actual site is hotter, wetter, dustier, more corrosive, or electrically less stable, that assumption can produce avoidable maintenance and disagreement.
The responsible approach is not to demand vague labels such as “tropicalized” or “heavy duty.” It is to document the destination, define the supplier-declared operating envelope, disclose abnormal exposure, and ask how a proposed configuration addresses each risk. Where reliable site data are unavailable, require a destination-specific engineering review rather than inventing a temperature or humidity limit.
This guide explains how investors, distributors, and procurement teams can turn environmental risks into an auditable specification. It does not claim that any particular Sunflower model has passed a named environmental test. Buyers should request model-specific declarations and configuration details from Sunflower before ordering.
Start with exposure mapping, not a country stereotype
“Middle East,” “Latin America,” and “coastal” are useful prompts, but they are not engineering conditions. A fully enclosed mall in Dubai is not equivalent to a semi-open attraction near a dusty road. A climate-controlled venue in Bogotá differs from a humid seaside room in Cartagena. Procurement should map exposures at cabinet level.
Record whether the machine will be indoors, covered but open-sided, or exposed to wind-driven dust and moisture. Note distance from entrances, kitchens, fountains, ice machines, HVAC vents, windows, and salt air. Identify daily opening hours, overnight HVAC practice, cleaning methods, expected occupancy, and whether power is supplied by utility, generator, solar inverter, or a mixed system.
A buyer should also distinguish four environmental phases:
- Transport and storage: Containers, customs yards, and unconditioned warehouses can be hotter or more humid than the operating room.
- Installation and acclimatization: A cold machine moved into warm humid air can collect condensation before power-up.
- Normal operation: Electronics generate heat internally, so cabinet temperature can exceed room temperature.
- Cleaning and shutdown: Dust can be pushed into vents, while overnight HVAC shutdown can create temperature and humidity cycles.
This lifecycle view prevents a common mistake: treating one room-temperature reading as the complete environmental profile.
Heat: specify the thermal system, not only the room
Heat reduces design margin in power supplies, displays, computers, LED drivers, motors, ticket mechanisms, and other assemblies. Dust accumulation can make the thermal problem worse by restricting airflow or insulating hot surfaces. High player traffic can also block vents or add heat around closely spaced cabinets.
A good RFQ asks the supplier to state the proposed machine’s operating and storage envelope, measurement conditions, ventilation assumptions, and any required clearance. It should also request the machine’s nominal and maximum electrical load, heat-producing assemblies, airflow path, fan access, and over-temperature behavior where applicable.
From a design-engineering perspective, thermal evaluation typically looks at the complete path from heat source to ambient air. Engineers consider component dissipation, fan capacity, pressure losses, recirculation, vent position, neighboring cabinets, and service contamination. A larger fan is not automatically a better solution. If the inlet and outlet are badly placed, hot exhaust can return to the intake. If a fine filter is added without accounting for airflow resistance, internal temperature may rise.
Buyers should ask for a configuration review of:
- intake and exhaust locations;
- minimum side, rear, and top clearances;
- replaceable fan and filter access;
- fan guards and cable protection;
- thermal alarms, shutdown logic, or logged temperature data, if available;
- display and power-supply suitability for the declared envelope;
- instructions for cabinet spacing and room ventilation;
- derating or alternative components for the destination, if required.
Do not assume air conditioning solves every thermal issue. Ask who is responsible for room temperature, cabinet clearance, filter service, and HVAC continuity. If the venue turns cooling off overnight, disclose that cycle to the supplier.
Humidity and condensation: separate continuous dampness from water ingress
Relative humidity alone does not describe condensation risk. Condensation occurs when a surface is below the dew point of surrounding air. This can happen when machines arrive from cold transport, when strong air conditioning chills a cabinet near an open door, or when cooling is stopped and warm moist air enters.
The RFQ should therefore ask for the supplier-declared non-condensing operating envelope and storage conditions. If condensation is credible, request a power-up acclimatization procedure. The procurement team should also state whether the venue uses wet mopping, pressure washing nearby, mist effects, fountains, or frequent door opening.
Humidity control measures may include component selection, protected PCB placement, drainage-conscious geometry, sealed connectors in selected locations, conformal coating, and corrosion-resistant finishes. Each has limitations. Conformal coating can reduce exposure of covered circuitry, but coverage, repairability, connector masking, and quality control matter. It does not convert an indoor amusement cabinet into outdoor equipment. Sealing can also trap heat or moisture if the enclosure concept is incomplete.
A buyer should ask precisely which boards, terminals, or metal parts receive any protective treatment; what coating or finish is used; how service technicians identify and repair coated areas; and what exclusions apply. The answer should be tied to the quoted model, not a generic brochure statement.
Dust: control entry, accumulation, and maintenance
Dust varies in particle size, abrasiveness, conductivity, oil content, and quantity. Fine mineral dust can pass through large louvers; fibrous dust can build a mat over an intake; food and carpet debris can foul mechanisms. Filters help only when correctly sized, sealed around their edges, and maintained.
Ask the supplier to explain the intended airflow and dust-control strategy. Useful questions include:
- Is cabinet pressure intended to be slightly positive, negative, or neutral?
- Are all major air inlets filtered, or can dust bypass the filter through gaps?
- What filter type and dimensions are used?
- Can venue staff inspect and replace it without dismantling the machine?
- Does the fan provide adequate airflow when the filter is partly loaded?
- What cleaning method is permitted for optical sensors, coin paths, ticket paths, and vents?
- Which areas must not be cleaned with compressed air or liquid?
A filter is a maintenance item, not a permanent shield. Procurement should establish inspection intervals based on actual site loading, then adjust after opening. A clean monthly filter in one venue may become obstructed much faster beside a desert-facing entrance. Differential-pressure sensing may be useful in some designs, but buyers should not assume it is standard; request model-specific options.
Engineering review should also consider whether dust can settle on horizontal PCB surfaces, enter buttons and readers, obscure optical sensors, or contaminate prize and ticket mechanisms. Cable entries, access-door gaps, speakers, and service openings may need attention. The best answer may combine airflow management, local shielding, easier cleaning access, and venue housekeeping rather than relying on one filter.
Salt air and corrosion: define proximity and exposure
Coastal environments add chloride contamination to humidity. Even an indoor venue can receive salt-laden air through doors and ventilation systems. Corrosion risk depends on proximity to the sea, wind direction, HVAC filtration, condensation, cleaning chemicals, and the metals and finishes used.
Buyers should describe distance and exposure rather than merely writing “coastal.” Ask about cabinet steel preparation, paint or powder-coat system, edge coverage, fastener material, dissimilar-metal contact, connector plating, PCB protection options, and treatment of scratches during installation. Internal metalwork can matter as much as exterior appearance.
No finish eliminates maintenance. The operational plan should include inspection for coating damage, prompt treatment of chips, dry cleaning practices, and control of chloride-containing cleaners. If the site is semi-open or directly exposed to spray, an ordinary indoor redemption machine may be unsuitable. Require a destination-specific engineering decision and document any installation enclosure or barrier that is necessary.
Unstable power: specify the disturbance profile and responsibility boundary
“220 V” or “110 V” is not enough. The supplier needs nominal voltage, frequency, plug and grounding standard, observed high and low voltage, outage frequency, generator transfer behavior, and known surges or brownouts. If measurements are not available, ask a qualified local electrician or power-quality specialist to survey the supply.
Power protection has several layers:
- Correct branch circuit and protective earth: basic site infrastructure must comply with local rules.
- Overcurrent and residual-current protection: selected and installed by qualified parties as required locally.
- Surge protection: coordinated at the building and equipment level where appropriate.
- Automatic voltage regulation: may address certain sustained over- or undervoltage conditions, but selection depends on load and disturbance type.
- UPS: can bridge interruptions or permit orderly shutdown, but topology, transfer time, capacity, waveform, runtime, heat, battery maintenance, and local service all matter.
- Power conditioning or isolation: may be appropriate after professional assessment; it is not a universal cure.
Ask the machine supplier for input requirements, peak or inrush characteristics, protective-device compatibility, grounding needs, and behavior after power loss and restoration. Ask the local electrical contractor to own the facility-side design. A low-cost “stabilizer” purchased without load data can introduce a new failure point.
For a UPS RFQ, list every connected load, desired runtime, ambient conditions, future expansion, communications needs, and bypass/service requirements. Clarify whether the UPS protects only the machine computer and transaction path or the complete cabinet, including motors and lighting. Obtain written compatibility confirmation from the relevant suppliers.
IEC 60068: useful test language, not a blanket certificate
IEC 60068 is a family of environmental testing standards covering methods and guidance for stresses such as cold, dry heat, damp heat, vibration, shock, dust, and related conditions. It gives buyers and engineers a common vocabulary for discussing test severity, conditioning, measurements, and pass criteria.
However, referencing “IEC 60068” without a part number, test condition, duration, specimen configuration, and acceptance criteria is not meaningful evidence. A component test is not automatically a cabinet-level qualification. A development test is not the same as third-party certification, and a laboratory condition may not reproduce every combined field exposure.
If testing is important, buyers should ask which exact method was used, what specimen was tested, whether the test was operating or non-operating, the severity and duration, the pass/fail criteria, the laboratory identity, report date, and whether the quoted production configuration is equivalent. Do not state or imply that a Sunflower machine has passed an IEC 60068 test unless model-specific evidence is supplied.
A practical RFQ field template
Copy the following fields into the project RFQ and require written responses:
Site and use
- Destination country, city, altitude, and distance from coast
- Venue type: enclosed, semi-open, or other
- Cabinet location relative to doors, windows, kitchens, water features, and HVAC outlets
- Operating hours per day and days per week
- Overnight HVAC status
- Expected cabinet spacing and wall clearance
- Cleaning methods and chemicals used nearby
Environmental envelope
- Measured or design indoor temperature range; attach logger data if available
- Measured or design relative humidity range and condensation risk
- Dust source, visible accumulation rate, and housekeeping plan
- Salt-air, mist, splash, or wind-driven exposure
- Storage and transport conditions before installation
- Required supplier-declared operating and storage envelope
- Requested destination-specific engineering review
Electrical supply
- Nominal voltage, phase, and frequency
- Plug/socket and grounding requirements
- Measured minimum/maximum voltage and survey period
- Outage, brownout, surge, and generator-transfer history
- Branch-circuit rating and local compliance responsibility
- Proposed AVR, surge protection, or UPS architecture
- Required restart behavior after interruption
Machine response
- Proposed ventilation and filter arrangement
- Required clearances and ambient assumptions
- Filter part reference and access method
- Fan, sensor, and power-supply configuration
- Coating, finish, corrosion-resistant fasteners, and protected assemblies
- Any conformal-coating scope and repair instructions
- Model-specific test reports or declarations available
- Preventive-maintenance tasks, intervals, tools, and spares
- Exceptions, limitations, and installation prerequisites
A Sunflower design engineer would normally evaluate these fields together rather than approve isolated accessories. Buyers can ask Sunflower for the specific configuration, drawings, input-power requirements, and environmental declarations available for a shortlisted machine.
Factory acceptance and site acceptance checklist
Before shipment, make the environment-related requirements visible in the purchase order and factory acceptance test (FAT). Photograph nameplates, filters, fans, vents, protective-earth connections, coatings, and included power accessories. Verify that manuals identify operating/storage limits, clearance, cleaning method, and protective-device requirements. Record machine configuration and serial references.
At site acceptance:
- Confirm room and supply conditions match the approved basis.
- Allow acclimatization before energizing if condensation is possible.
- Inspect crates and cabinets for moisture, rust, blocked vents, loose connectors, or transit debris.
- Verify protective earth and branch supply through qualified personnel.
- Measure supply conditions under representative load.
- Confirm fan direction, unobstructed airflow, and required clearances.
- Test controlled loss and restoration of power using an approved procedure.
- Verify game boot, display, controls, readers, ticket or prize mechanisms, audio, lighting, and error logs.
- Create baseline photographs of clean filters and cabinet interiors.
- Train staff on filter inspection, safe isolation, cleaning, and escalation.
Acceptance criteria should distinguish machine conformity from site nonconformity. If the room exceeds the declared envelope, adding replacement parts will not solve the root cause.
Preventive maintenance should be condition-based
Harsh-environment reliability depends on operations as well as design. Maintain a simple log of room temperature and humidity, filter condition, voltage events, fan noise, corrosion signs, cleaning, and resets. During the first weeks, inspect more frequently to establish a realistic interval. Preserve ventilation space when the floor layout changes.
Distributor and operator responsibilities should be explicit. The manufacturer may define machine limits and service procedures; the buyer controls the building, cleaning, power quality, and adherence to clearances. A local service partner may manage consumables and inspections. Writing this responsibility matrix before delivery is more effective than debating causation after a fault.
Buyer decision framework
Compare bids through evidence, serviceability, and lifecycle cost—not protective adjectives. Give higher value to a supplier that declares assumptions, identifies exceptions, provides accessible filters and drawings, and requests site data. Treat an unqualified promise that a machine is “suitable for any climate” as a reason for further questions.
Budget for environmental logging, electrical survey, ventilation, spare filters and fans, corrosion touch-up materials, and UPS battery service where applicable. These are part of deployment cost. Also consider whether placing the machine deeper indoors or improving room filtration is cheaper and more robust than modifying every cabinet.
The objective is not to eliminate all risk. It is to establish a documented operating envelope, design response, maintenance plan, and acceptance method that all parties understand.
Preguntas frecuentes
1. What temperature can a redemption machine safely tolerate?
There is no responsible universal number. Request the supplier-declared operating and storage envelope for the exact model and configuration, including ventilation and clearance assumptions. If site conditions approach or exceed it, require a destination-specific engineering review.
2. Does conformal coating make an arcade machine waterproof?
No. Conformal coating can protect selected PCB areas from certain contaminants and moisture, but connectors, displays, power parts, mechanisms, cabinet seams, and uncoated areas remain relevant. Ask for the exact coating scope and limitations.
3. Should every dusty venue use finer filters?
Not automatically. A finer filter can increase airflow resistance and internal temperature. Filter efficiency, area, fan capability, bypass sealing, service access, and replacement interval must be evaluated as one system.
4. Is a voltage stabilizer enough for unstable power?
It depends on the disturbance. A regulator, surge-protection system, and UPS address different problems. Obtain site measurements, machine input requirements, and advice from qualified electrical professionals before selecting protection.
5. Can standard indoor machines be installed in semi-open venues?
Only after a documented review. Wind-driven dust, humid air, salt, splash, insects, solar heating, and public access may exceed an indoor design basis. The answer may require an enclosure, room changes, a modified configuration, or a different placement.
6. How often should filters be cleaned?
Set an initial conservative inspection schedule, observe actual loading, and adjust according to the supplier’s procedure. Record condition and internal temperature indicators. A calendar interval copied from another venue may be inappropriate.
7. What IEC 60068 evidence should a buyer request?
Ask for the exact part and method, severity, duration, specimen, operating state, acceptance criteria, report, laboratory, date, and equivalence to the quoted production model. A generic reference to the series is not proof of model compliance.
8. What should be measured before placing an order?
Capture temperature and humidity over representative operating and shutdown periods, assess dust and salt exposure, and survey voltage, frequency, outages, and generator transfer. Also document cabinet placement, clearance, HVAC, and cleaning.
9. Who is responsible if the venue power is outside specification?
The contract should say. Typically, the supplier declares equipment input requirements while the buyer and qualified local contractor provide a compliant facility supply. Acceptance records should verify both sides of that boundary.
