HVAC and Building Automation Service Provider
JJD’s HVAC and Building Automation group has a broad background working with Commercial and Industrial facilities. Decades of Energy Savings and HVAC projects enable us to provide support for Capital Projects & Facility Maintenance.

Services Provided
- Equipment/System Installation Per Engineered Specifications
- Installation of new or upgrade boiler controls and electrical power
- Installation of new or upgrade chiller controls and electrical power
- Replace or retrofit controls for AHU's, H+V Univents, VAV's, RTU's, Split systems and VRF Units
- Networking Platforms
- BACnet
- Modbus
- Lonworks
- Controllers
- Honeywell
- Schneider
- Johnson
- Electrical
- Upgrade circuitry when 1-phase equipment is converted to 3-phase

From construction to commissioning through start-up and
maintenance, we are prepared for today’s industry challenges.

Instrumentation Devices
- Variable Frequency Drives
- Discharge & Return Air Temperature Probes
- Return Air Temperature Probes
- Mixed Air Temperature Capillary
- Freeze Stat Low Limit Capillary
- Damper Actuators
- Outside Air Temperature and Humidity Sensor
- Filter Differential Pressure Sensors & Transmitters
- Hot Water Valve Actuators
- Power Metering
- KWh/Peak Demand/Quality
- Peak Demand
- Power Quality
- Header Well Temperature Sensors
- Boiler Pump Start/Stop Relays
- Well-Type Differential Pressure Sensors

Sample Project Description
Hamilton Township Energy Savings Improvement Project-22 Schools
- Network Lonworks Bus Wiring trough
- 90% Replacement Boiler Control Devices and Spyder Boards
NJ Department of Transportation
- New BACnet Communication Bus
- Boiler Control Devices replaced
- Power Consumption Metering installed
- Installed Control Wiring for all New Equipment and Existing Equipment