ZoomLock Cost Analysis
Determining if there is value in using a press-fit joint such as ZoomLock™ requires that you look at several factors that impact cost and quality. We covered the technical aspects of ZoomLock™ in another article; see ZoomLock...
SmartLock Fitting Review
There is another ACR fitting available that eliminates brazing in refrigerant systems called the SmartLock fitting. We will review the SmartLock fitting vs Brazed fittings in this article.
DOAS - Energy Recovery
When is an Energy Recovery system required according to ASHRAE 90.1 (2013)?
ASHRAE 90.1 2013
(Energy Standards for Buildings, Except Low Rise Residential Buildings)
When using a VRF Dedicated Outside Air System (DOAS) to bring in ventilation air to...
VRF System Control Wiring
This VRF System control wiring is for a VRF VRV Heat Recovery System with single port branch selector boxes. The control wiring is very simple, it’s basically two 18 gauge wires that go from the thermostat...
Tenant Submetering
How do you bill tenants for their share of the use of a piece of air conditioning equipment that is shared amongst more than one tenant in your building? If you have a VRF Air Conditioning system, where...
Refrigerant Monitoring Code Requirements
ASHRAE 15 requires the monitoring of refrigerant leaks under certain conditions within a mechanical room, but what about an occupied space where refrigerant is circulated through VRF/VRV (Variable Refrigerant Flow) Indoor Fan Coils? When is a...
Project: Smouse Opportunity School
Building Type: School
Location: Des Moines, Iowa
VRF System: LG
Equipment: • Multi V Water IV Heat Recovery
• High Static Ducted Units
• 4- Way Ceiling Cassette
• Cased and Uncased Vertical Console Units
• BACNet Gateway
• Remote Temperature Sensor
https://youtu.be/_Hk0jQVGsxU
What is VRF
VRV Variable Refrigerant Volume systems were invented in Japan in 1982 by Daikin and brought to the United States in 2004. These systems are used worldwide. Daikin VRV (Variable Refrigerant Volume) is their trademarked name, that’s why...
When do you use a VRF Single Port vs Multiport Branch Selector Box?
What’s the difference between a VRF single port branch selector box and multiport box? What does the branch selector box do? Which one requires more piping?
The decision...
ZoomLock Value Calculator Review
The ZoomLock Value Calculator provides a quick way to analyze the cost difference between doing a project with brazed joints versus the ZoomLock press-fit connection method. In this article we will do a ZoomLock Value Calculator...
