Load Ratings - Metasys - LIT-12011288 - Software Application - Metasys Building Automation System - 6

DLLR Technical Bulletin

Product
Building Automation Systems > Building Automation Systems > Metasys Building Automation System
Document type
Technical Bulletin
Document number
LIT-12011288
Version
6
Revision date
2013-10-15

Identify the amount of energy saved for each load when the load is shed. Enter this amount in the Load Ratings table while defining the Load extension. If the load is a multistate object, you must determine the energy savings associated with each of its possible states. If a particular state is not specified in the Load Ratings table, DLLR does not shed the load when the output is in that state. Also, because the DLLR feature sheds loads to meet a specified target, you must identify the savings expected when a particular load is shed. Table 1 shows a few examples.

Table 1. Load Rating Examples

Type of Output

Equipment

Load Rating

Shed From

Shed To

Energy Savings

Analog

Variable Speed Exhaust Fan

100.0

70.0

8 kW

90.0

70.0

5 kW

80.0

70.0

2 kW

Binary

Lighting Circuit

On

Off

1 kW

Multistate

Supply Fan

High

Low

10 kW

Medium

Low

3 kW

Also consider that DLLR uses the savings rate that is less than or equal to the Shed command for analog loads. For example, using the analog output in Table 1, if the output value is 89% when the load is shed, DLLR reports 2 kW saved.