EQUIPMENT / EQUIPMENT FAMILY

Cling EZDD/EZDS electric passenger heat pumps

A passenger-HVAC electrical platform with documented voltage ranges; battery duty and complete-unit protection cannot be inferred.

From Zhengzhou Cling · Vehicle HVAC and thermal management

Individual product research · HVACDeck Editorial · Sources checked 2026-10-11

Prepare an enquiry Compare equipment

Manufacturer catalogue image · EZDD / EZDS

01 / UNDERSTAND THE EQUIPMENT

Approve EZDD/EZDS vehicle power, passenger duty and roof fit

Cling’s ordinary EZDD/EZDS electric heat-pump family is specified for passenger climate control on 6–13 m electric, hybrid and fuel-cell buses. The page describes full-DC inverter operation, PWM speed control and electronic expansion valves, and provides a 400–750 V high-voltage platform plus 24 V low-voltage platform. Its table does not list a battery liquid-cooling duty; that function belongs to a separately identified integrated offer, not an assumed feature of this passenger-only schedule.

EZDS-04 lists 28 kW cooling, 26 kW heating, R407C and a 245 kg roof assembly. The source footnote gives indoor 40°C/outdoor 35°C but omits humidity, separate heating conditions and electrical input. It claims IP67 for key components rather than a reviewed complete-unit enclosure rating. Use the published platform and airflow rows to define the vehicle interface, then obtain the exact selected performance, power and approval documents.

02 / READ THE CONDITIONS

Published parameters and their scope

This is an equipment family; its range does not identify one orderable configuration.

Family designation: EZDD / EZDS

Swipe the table, or focus it and use arrow keys, to read the conditions and sources.

Manufacturer-published values · conditions are part of the specification
Parameter	Published value	Conditions and evidence
Electrical platforms	High voltage 400–750 V; low voltage 24 V	Published five-model table; current, startup and protection/interface limits not supplied. Source
EZDS-04 thermal reference	28 kW cooling; 26 kW heating	Shared footnote indoor 40°C/outdoor 35°C; heating and humidity conditions need confirmation. Source
Actual refrigerant	R407C	Not interchangeable with LEZDS-J R410A or CEZDD R744; charge/service data missing. Source
EZDS-04 air/roof reference	Evaporator 4,000 m³/h; condenser 8,000 m³/h; 2,750 × 2,000 × 260 mm; 245 kg	Published body and airflow values; vehicle distribution/supports need approval. Source
Protection scope	Key components described as IP67	No exact component list/test file or complete-unit IP rating reviewed. Source
Battery boundary	No battery coolant-capacity row in this ordinary family table	Do not inherit the integrated J-series battery or simultaneous-load schedule. Source

Selection and application review

Validate the complete electrical operating window

Provide the vehicle’s actual high-voltage range, 24 V auxiliary supply, transients, charging modes and control permissions. Obtain current/input limits, wiring/protection, interlocks and startup/shutdown requirements for the selected model. A nominal 400–750 V platform does not establish compatibility with every condition a vehicle power system can produce.

Define low-voltage-loss and communication-loss responses, recovery after power interruption and the control boundary with the vehicle controller. The published PWM and electronic-expansion-valve wording describes mechanisms, not a complete integration protocol or electrical approval file.

Select cabin performance under a defined load cycle

Use passenger heat load, occupancy, doors, solar exposure and climate rather than bus length alone. Request cooling/heating maps at the project’s air conditions and electrical operating points, including input and part-load control. The table’s nominal kW values cannot establish whole-vehicle energy use or range impact.

The shared 40°C indoor/35°C outdoor footnote does not provide a separate cold-weather heating/defrost schedule. Obtain that evidence if the vehicle needs winter operation. Do not adopt another Cling family’s low-temperature range or backup behaviour for the ordinary EZDD/EZDS assembly.

Keep battery and protection claims within their scope

The table is passenger-HVAC information, without a battery liquid-circuit capacity row. If the project needs combined battery duty, request the appropriate integrated configuration and its coolant/simultaneous-load schedule. A similar roof casing does not add that circuit to this family.

The page says key components meet IP67. Ask which components, what test/report applies and how installed connectors, covers and service joints are protected. Do not label the entire roof assembly IP67 or infer suitability for arbitrary water exposure from a component-level claim.

Coordinate air distribution, roof loading and maintenance

The EZDS-04 airflow, mass and outline differ from larger/smaller family rows. Obtain the selected return/discharge openings, air-distribution resistance, roof mounting and structural loads with an actual vehicle drawing. The suggested 7.5–9 m fit range does not prove passenger pull-down or a body builder’s support approval.

Close condensate drainage, vibration isolation, refrigerant service and the route for component replacement. The page promotes a V-shaped vibration/noise design but supplies no comparable sound value here. Request the acoustic and vibration data required by the exact installation.

Freeze the passenger-only configuration and vehicle tests

An enquiry should include passenger loads/climate, vehicle electrical/control architecture and roof/duct drawings. Obtain the selected model, conditioned duty/input schedule, interface documentation and applicable destination approval. Keep the supplier’s configuration/update warning linked to the approved revision.

Acceptance should verify power/control functions, air delivery, cabin pull-down/heating and relevant environmental/vibration requirements. No price, stock, current delivery or independently measured vehicle efficiency was established. This individually written brief distinguishes a documented passenger system from unprovided battery and whole-unit claims.

Approve vehicle power
Close high/low voltage, input, interlocks and control permissions.
Select the cabin duty
Obtain climate/part-load performance and heating/defrost evidence.
Test the installed scope
Verify air, roof, control and model-specific approval requirements.

Sources and review scope

Compiled by HVACDeck Editorial. Source review identifies what the publication states; it is not an independent performance test or certification.

Official ordinary EZDD/EZDS pageChecked 2026-10-11 · Complete table, electrical platform, component-IP wording and update disclaimer read. No battery circuit or independent test inferred.
Original ordinary electric-family imageChecked 2026-10-11 · Original roof-unit image visually inspected; motor/electrical/control package must be confirmed.

Editorial method and corrections · Report a detail with this page URL