5.3102.8 Replacement of Conventional Pumps with Electrically Commutated Motor-Driven Pumps (Hot Water)

Hydronic Heating (Hot Water and Steam)
Equipment Installation
Desired Outcome: 
Improved pump efficiency and control
Check for presence of asbestos-containing materials (ACMs)

Potential ACMs will be handled in accordance with SWS 2.0110.2 Potential Asbestos-Containing Materials

Ensure a safe work environment

Isolate pump location

Nearest valves on either side of pump location will be closed

Power supply will be disconnected

Eliminate water and power supply to the pump location

Replace pump with electrically commutated motor (ECM) pump

Existing pump will be removed and replaced with ECM pump, installed in accordance with manufacturer specifications

Gauges will be installed on inlet and outlet sides of pump location

System will be refilled, and air will be eliminated

Power will be restored to new ECM pump

Pump speed variation will be verified by exercising some valves in the system, simulating load demand changes

Ensure proper operation of ECM pump

Reinsulate area

Where insulation was removed, valve will be reinsulated with new insulation to IECC IECC International Energy Conservation Code and ASHRAE ASHRAE American Society of Heating, Refrigerating and Air-Conditioning Engineers, www.ashrae.org 90.1, at a minimum

Reduce energy loss

Maintain safe surface temperature

Educate building operations staff

Building operations staff will be educated to operate ECM pump

Ensure continued optimized performance