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Summary of Contents for Lennox LXRCC10
- Page 1 Application guide LXRCC10 Remote control Providing indoor climate comfort LXRCC10-AGU-0509-E...
- Page 3 RCC10… Room Temperature Controllers for two-pipe fan coil units Output for on / off valve actuator Outputs for three-speed fan Control depending on the room or return air temperature (RCC10) Automatic heating / cooling changeover Operating modes of RCC10: normal, energy saving and frost protection mode or Operating modes of RCC10.1: normal and energy saving mode or OFF Operating mode changeover input for remote control Function for avoiding damage resulting from moisture (RCC10.1)
- Page 4 Functions The controller acquires the room temperature with its integrated sensor or external room temperature sensor (QAA32) or external return air temperature sensor (QAH11.1) – if used (optional with the RCC10) – and maintains the setpoint by delivering control commands to the 2-point-valve. The switching differential with the •...
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Page 5: Automatic Changeover
Automatic The water temperature acquired by the changeover sensor (QAH11.1 + ARG86.3) is changeover used by the controller to switch from heating to cooling mode, or vice versa. When the water temperature lies above 28 °C, the controller switches to heating mode, below 16 °C it switches to cooling mode. -
Page 6: Mechanical Design
Avoiding damage To avoid damage due to moisture in very warm or humid climatic zones resulting from resulting from mois- lack of air circulation in energy saving mode, the fan will not be switched off when se- ture lecting the function “Temperature-independent fan control“ (with DIP switch no.1) (only with the RCC10.1) Operating mode A changeover switch can be connected to status input D1-GND. - Page 7 Setting and operating elements Legend 1. Operating mode selector (standby , heating or cooling mode with manual selection of fan speed) LEDs for indicating heating mode, cooling mode and fan operation Setting facility for minimum setpoint limitation (in increments of 1 K) Setting facility for maximum setpoint limitation (in increments of 1 K) Room temperature setpoint knob...
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Page 8: Engineering Notes
Engineering notes In systems with automatic changeover, the temperature sensor can be replaced by an external switch for manual changeover. In systems with continuous heating operation, no sensor will be connected to the con- troller’s input. With continuous cooling operation, the controller input (B2–M) must be bridged. Mounting, installation Mounting location: on a wall or inside the fan coil unit. - Page 9 Status input D1 and GND Contact sensing SELV DC 6-15V / 3-6 mA Insulation against mains 4 kV, extra insulation Operating action With the RCC10 selectable (N.O. / N.C.) With the RCC10.1 (N.O.) Perm. cable length with copper cable 1.5 mm for connection to terminals B1, B2 and D1 80 m Setpoint setting range...
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Page 10: Connection Terminals
Connection terminals L, N Operating voltage AC 230 V L B1* M B2 D1 GND Status input “Return air temperature sensor“ Measuring neutral “Return air temperature N Q1 Q2 Q3 Y11 N sensor“ SELV Status input “Changeover sensor“ D1, GND Status input for potential-free operating mode changeover switch (operating action can be selected) Control output “Fan speed I“... - Page 12 LENNOX DISTRIBUTION +33.4.72.23.20.00 info.dist@lennoxeurope.com Due to Lennox’s ongoing commitment to quality, the Specifications, Ratings and Dimensions are subject to change without notice and without incurring liability. Improper installation, adjustment, alteration, service or maintenance can cause property damage or personal injury.
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