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Tempstar Heat pump D3CMW Domestic Hot Water Air-To-Water Heat Pump

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Tempstar Residential HVAC Heat pump Repair, maintenance, and replacement planning
Tempstar D3CMW Domestic Hot Water Air-To-Water Heat Pump product image

Technical Specifications

Product Specs

  • Brand: Tempstar
  • Official model: D3CMW
  • Official product name: Domestic Hot Water Air-To-Water Heat Pump
  • Equipment type: Heat pump
  • Product group: Residential HVAC
  • Cooling Efficiency: Up to 16.8 EER
  • Heating Efficiency: Up to 4.9 COP
  • Sound: Sound as low as 52 decibels
  • Up to 4.9 COP and 16.8 EER for premium energy savings
  • Compact Monobloc design with R-32 refrigerant for high efficiency, reduced environmental impact (GWP of 675 kg CO₂e) and simplified installation and service
  • Inverter-driven variable-speed rotary compressor
  • Cooling Capacity 1.5 - 4.3 tons
  • Heating Capacity: 20.5 - 58.0 MBH/heating
  • Model or series: D3CMW Domestic Hot Water Air-To-Water Heat Pump
  • System role: Water-heating equipment for domestic or commercial hot-water loads
  • Application: Domestic or commercial hot-water applications when model capacity is appropriate
  • Compatibility check: Match with compatible indoor unit, coil or air handler, controls, refrigerant, voltage, and capacity.
  • Verified source: tempstar.com

Useful troubleshooting details

  • Confirm the outdoor heat pump model, serial number, matched indoor equipment, auxiliary heat setup, thermostat or communicating control, refrigerant, voltage, and capacity.
  • Share no-heat, no-cooling, outdoor icing, defrost behavior, short cycling, weak airflow, control alerts, or unusual noise.
  • For upgrade planning, note whether the project involves ducted, ductless, hybrid, cold-climate, or fossil-fuel-to-heat-pump options.

Service planning

How GreenFlow handles D3CMW Domestic Hot Water Air-To-Water Heat Pump requests

1

Identify the equipment

Confirm the model or series name, serial number if available, photos, and whether the unit is roof, exterior, basement, or mechanical-room equipment.

2

Describe the service issue

Share no heat, no cooling, weak airflow, error codes, alarms, leaks, noise, control problems, or comfort complaints.

3

Review access and history

Include access notes, tenant or business-hour constraints, filter status, recent repairs, and maintenance records when available.

4

Plan the next step

GreenFlow can route the request for diagnostics, repair planning, maintenance, replacement scope, or related system upgrades.

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Our Happy Customers

Jenny W.

Great service! On time, knowledgeable & professional

Randy J.

Thanks to Andrey for an amazingly quick response to my request for a service call. He diagnosed and fixed my issue within 24 hours of my asking for help. Excellent service. Thanks.

Michele Z.

Andrey was professional, prompt, smart, thorough and exceedingly pleasant. We are likely switching our current HVAC company to Green Flow.

Melissa S.

The repair person came quickly and was super efficient and polite, and showed me what to do next time. He gave my dog a quick pay and was off again.

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