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Summary of Contents for MicroMetl ECH-SRTCB-D0
- Page 1 Economizer ECH-SRTCB-D0 Install Guide Foremost HVAC Accessory Manufacturer...
- Page 2 Table of Contents Topic Topic Page Number Page Number General Install Instructions No Controls Wiring Diagram...
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Page 3: Safety Considerations
Unpack and inspect economizer contents from carton. Contact CAUTION MicroMetl immediately if any parts are missing or damaged Failure to follow this caution may result in personal injury and damage to Table 1 - Package Contents the unit. - Page 4 Table 3 MicroMetl Economizer Description Part Number For use with Carrier ComfortLink. Includes Belimo MFT Actuator 500 OHM Resistor, 12 Pin plug, and ECH-SRT12CB-D0DB-X dry bulb outside air sensor. For use with Carrier RTU Open, PremierLink, or System Vu. Includes Belimo MFT Actuator 500 OHM...
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Page 5: Installation
INSTALLATION Compliance — Economizers meet California Energy Commission Title 24 prescriptive section 140.4 (damper leakage Step 1: etc.), and mandatory section 120.2.i for Fault Detection and Step 2: Diagnostic controls. Economizers meet ASHRAE 90.1 damper leakage requirements See Figure 1. and Fault Detection and Diagnostic requirements. - Page 6 Step 7: Lift economizer so I.D. of economizer matches I.D. of economizer cut out in panel. See Figure 5. Step 8: Once aligned use #10 sheet metal screws no longer then 5/16” to attach economizer to O/A panel. Step 9: After economizer is attached make sure return section of economizer fits snug and square in horizontal section of the RTU.
- Page 7 Step 13: Remove and save the 12-pin jumper plug from the unit economizer harness – located in the upper left corner of the unit. Insert the economizer plug into the unit wiring harness. See Figure Note: The 12-pin jumper plug should be saved for future use, in the event that the economizer is ever removed.
- Page 8 MicroMetl *CB-D00B Since 1965 LF24-SR (-S) US Proportional damper actuator, spring return safety, 24 V for 2 to 10 VDC, or 4 to 20 mA control signal. Output signal of 2 to 10 VDC for position indication. Wiring diagrams 24 VAC Transformer...
- Page 9 MicroMetl *CB-D00H/-H Since 1965 ** Make sure the Economizer actuator settings are correct. They should be on ADDRESS 1 Set Switch DIAMOND SYLK 27IN/LB** to 1. (Actuator might come in on #6 so change back to #1) MS7103, MS7503, MS3103...
- Page 10 *CB-D00S FEATURES 2-10Vdc with signal inversion Economizer applications 4-20mA applications 987-105 GMA 151.1PRHEEM GCA161.1P Rotary angle direction Self-adaptation to mechanical range Positioning control signal 2-10 or 0-10 Positioning signal. Turn on or off capability to adjust offset/span.
- Page 11 MicroMetl EC*-SRT/MRT**C*-D0DB-X/4 Since 1965 Optional Field Installed Enthalpy sensor. Connect Red wire to 24V and Black wire to GRND on sensor. Optional Field Installed CO2 Sensor 4-10mA Output Connect – to Red wire and + to White wire. Optional Field Installed...
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