Advertisement
Original Issue Date: 1/12
Model: 14RESA, 14RESAL, 20RESA, 20RESAL, and 48RCL (single-phase)
Market: Residential/Commercial
Subject: Load Control Module (LCM) Kits GM77177-KP1-QS and -KP2-QS
Introduction
The load control module (LCM) is designed to work with
Kohlerr residential/commercial generator sets that are
equipped with the RDC2 or DC2 controller and an
automatic transfer switch. This includes the following
generator set models:
D
14RESA and 14RESAL
D
20RESA and 20RESAL
D
48RCL (single-phase only)
The load control module automatically manages up to
six residential loads. Four power relays are provided for
management of non-essential secondary loads, and
two relays are available to control two independent air
conditioner loads.
Note: Connect only non-essential loads to the load
control module.
The load control module provides an automatic load
management system to comply with Section 702.5 of
NEC 2008. The installer is responsible for ensuring that
the power system installation complies with all
applicable state and local codes.
Two kits are available with either a pre-wired harness or
terminal blocks for customer connections.
Figure 1. The pre-wired harness requires installation of
the LCM within 2 feet of the distribution panel. The load
control module with the optional pre-wire harness is
shown in Figure 2. Figure 3 shows the load control
module without the optional harness.
A status indicator provides visual indication that each
load is connected (green) or disconnected (red). The
status indicator also flashes to indicate a test condition.
A test button allows the operator to cycle the relays in the
order of their assigned priority.
The Kohlerr OnCuer program can be used to monitor
the LCM operation and to label the loads with
easy-to-understand text.
Software Operation Manual.
INSTALLATION INSTRUCTIONS
See
See TP-6796, OnCue
RDC2/DC2 controller firmware version 4.3 or higher is
required for LCM operation. Check the version number
on the controller and update the controller firmware, if
necessary.
Before starting the installation, confirm that the
generator set is equipped with one of the controllers
shown in Figure 4.
procedure and compare the kit parts with the parts list at
the end of this publication. Perform the steps in the
order shown.
Kit Number
Load control module with pre-wired
GM77177--KP1-QS
GM77177--KP2-QS
Load control module with terminal blocks
Figure 1 Kit Descriptions
Figure 2 Load Control Module with Optional
Pre-wired Harness
TT-1574
Read the entire installation
Description
harness
1/12
Advertisement
Table of Contents
Subscribe to Our Youtube Channel
Related Manuals for Kohler GM77177-KP1-QS
Summary of Contents for Kohler GM77177-KP1-QS
- Page 1 Original Issue Date: 1/12 Model: 14RESA, 14RESAL, 20RESA, 20RESAL, and 48RCL (single-phase) Market: Residential/Commercial Subject: Load Control Module (LCM) Kits GM77177-KP1-QS and -KP2-QS RDC2/DC2 controller firmware version 4.3 or higher is Introduction required for LCM operation. Check the version number...
-
Page 2: Safety Precautions
Safety Precautions Observe the following safety precautions while installing the kit. WARNING Accidental starting. Can cause severe injury or death. Disconnect the battery cables before working on the generator set. Remove the negative (--) lead first when disconnecting the battery. Reconnect the negative (--) lead last when reconnecting the battery. -
Page 3: Installation Procedure
1 Installation Procedure 1. Press the OFF button on the generator set CT DETAIL controller. (shown from side for clarity) 2. Disconnect the utility power to the generator set. 3. Disconnect the generator set engine starting battery(ies), negative (--) lead first. Emergency source leads must cross through CT as 4. - Page 4 9. Connect the CT to connector TB1 on the LCM Power Relay Load Interconnection circuit board using customer-supplied wiring. See Label Color Description Figure 7 and Figure 10. L1A-CB Orange Load 1 – Circuit Breaker A 10. Connect the controller interface connection to L1B-CB Orange Load 1 –...
- Page 5 14. Connect 120 VAC to the terminal block labeled 17. Reconnect the generator set engine starting 120 VAC in the lower left corner of the LCM battery, negative (--) lead last. enclosure. See Figure 6 and the wiring diagrams 18. Reconnect utility power to the generator set. in Section 7.
- Page 6 2 Wiring breaker (not provided). See Figure 28 and the wiring diagrams in Section 7. Refer to the wiring diagrams in Section 7. 2.4 Generator Controller Interface Note: Low voltage wiring must enter the enclosure Connection above the power relays to ensure separation of circuits per NEC requirements.
- Page 7 Maximum length per run, meters (ft.) Number of Modules (ATS, PIM, and LCM) per Run 1 Module 2 Modules 3 Modules Cable (TB1- -PWR and COM) Belden #9402 or equivalent 20AWG (200) (100) (67) 14 AWG (500) (500) (400) 12 AWG (500) (500) (500)
- Page 8 Connect one end of each cable shield to GROUND at the generator set. Connect shields together as shown. Generator Set RBUS 12 VDC NOTES: See the generator set Installation Manual for terminal block location on generator set. Check the decal on the generator set for terminal block connections.
- Page 9 RXT ATS Generator Set NOTES: See the generator set Installation Manual for terminal block location on generator set. Check the decal on the generator set for terminal block connections. See Figure 12 for maximum total cable length per run (3 runs with 1 module each shown).
- Page 10 RXT ATS Generator Set NOTES: See the generator set Installation Manual for terminal block location on generator set. Check the decal on the generator set for terminal block connections. See Figure 12 for maximum total cable length with 12 or 14 AWG wire. See Figure 13 for communication connection (A and B, PWR and COM) detail.
-
Page 11: Theory Of Operation
3 Operation 3.3 Load Add/Shed Priority Loads are prioritized from priority 1 to priority 6. See Many appliances do not run continuously. Figure 8 on page 4. Priority 1 is considered the most conditioners and furnaces, refrigerators, sump pumps, critical and will add first and shed last. Priority 6 is and other appliances cycle on and off as needed. - Page 12 LCM will accept without shedding. The setting is adjustable using a laptop computer connected to the RDC2 or DC2 controller and Kohler SiteTech software. See Section 4.2.4. Set the Generator Overload Percent at least 10% higher than the Generator Maximum Percent Capacity. Generator...
- Page 13 4.2.2 Under Frequency Shed Loads are shed on a time scale which is based on the generator frequency droop. The loads will shed quickly when the frequency droop is high (output frequency is lower), and more slowly when the generator is running close to rated frequency.
-
Page 14: Drawings And Diagrams
5 Status Indicators and Test Button State LED color Duty Cycle Disconnected Full On LEDs provide visual indication of the status of each load. (Shed) See Figure 25 and Figure 26. Connected Green Full On (added) Use the TEST button to exercise the load shed relays in Disconnected 1 sec on, 1 sec off sequence according to the assigned priorities. - Page 15 Figure 28 Dimension Drawing, Load Control Modules, ADV-8198-A TT-1574 1/12...
- Page 16 Figure 29 Schematic Diagram, LCM with Pre-wired Harness, GM81638 Sheet 1 TT-1574 1/12...
- Page 17 Figure 30 Schematic Diagram, LCM with Terminal Blocks for Customer Connection, GM81638 Sheet 2 TT-1574 1/12...
- Page 18 Figure 31 Wiring Diagram, LCM with Pre-wired Harness, GM81374 Sheet 1 TT-1574 1/12...
- Page 19 Figure 32 Wiring Diagram, LCM with Terminal Blocks for Customer Connection, GM81374 Sheet 2 TT-1574 1/12...
-
Page 20: Parts Lists
8 Parts Lists Load Control Module with Harness Load Control Module with Terminal Blocks Kit: GM77177-KP1-QS Kit: GM77177-KP2-QS Qty. Description Part Number Qty. Description Part Number LCM Assembly w/Harness GM77177-1 LCM Assy w/Term GM77177-2 Transformer, Current GM83929 Transformer, Current GM83929...
Need help?
Do you have a question about the GM77177-KP1-QS and is the answer not in the manual?
Questions and answers