Reznor CLIMANAGER packaged AC controller

Register map(s) for this device, with a note of how far each has been checked. Addresses are 0-based, as on the wire. Scale and byte order are confirmed only at the hardware-verified rung.

coherence-checked

Round-trips through a real Modbus stack with no overlapping addresses and a word-order-sensitive codec — the map is internally coherent and wire-decodable. Does NOT prove byte-order or scaling match a real device: the emulator is seeded from the map's own types, so a uniformly wrong byte-order still round-trips. Only hardware-verified confirms byte-order/scale on the wire.

point	address (0-based)	type	scale
air_quality_voc_sensor	0	I16	1
auto_mode_set_point	1	I16	1
confort_heating_set_point	2	I16	0.1
eco_heating_set_point	3	I16	0.1
confort_cooling_set_point	4	I16	0.1
eco_cooling_set_point	5	I16	0.1
humidity_set_point	6	I16	0.1
outdoor_humidity	7	I16	0.1
supply_humidity	8	I16	0.1
return_humidity	9	I16	0.1
high_pressure_circuit_1	11	I16	0.1
high_pressure_circuit_2	12	I16	0.1
high_pressure_circuit_3	13	I16	0.1
high_pressure_heat_recovery_circuit	14	I16	0.1
outdoor_temperature	15	I16	0.1
supply_temperature	16	I16	0.1
return_ambient_temperature	18	I16	0.1
exhaust_fresh_air_damper	21	I16	1
air_quality_co2_sensor	208	U16	1
number_of_compressors_working	209	U16	1
horas_compresor_1_c1	210	U16	1
horas_compresor_1_c2	211	U16	1
horas_compresor_1_c3	212	U16	1
horas_compresor_2_c1	213	U16	1
horas_compresor_2_c2	214	U16	1
horas_compresor_2_c3	215	U16	1
horas_compresor_cr	216	U16	1
arranques_compresor_1_c1	217	U16	1
arranques_compresor_1_c2	218	U16	1
arranques_compresor_1_c3	219	U16	1
arranques_compresor_2_c1	220	U16	1
arranques_compresor_2_c2	221	U16	1
arranques_compresor_2_c3	222	U16	1
arranques_compresor_cr	223	U16	1
actual_supply_fan_flow_l	228	U16	1
actual_supply_fan_flow_h	229	U16	1
actual_return_fan_flow_l	230	U16	1
actual_return_fan_flow_h	231	U16	1

link settings as documented (unverified): RTU/TCP; default 9600 8N1

bench facts as documented (unverified)

power	230 Vac
environment	-10ºC/+60°C
doc revision	MR_KCR_1602A_EN_EU

field reports — community-sourced, unverified (checked 2026-06-11)

confirmed: comms defaults (baud rate 9600, parity None, stop bits 1) — confirmed by Gfc23 parameter settings in the MR_KCR_1602A_EN_EU manual [21.4.1]
confirmed: framing (RTU and TCP) — confirmed by Section 10/11 of the MR_KCR_1602A_EN_EU manual stating support for RS485 (RTU) and Ethernet (TCP/IP) platforms
confirmed: facts (doc_revision MR_KCR_1602A_EN_EU, environment -10ºC/+60°C, power 230 Vac) — confirmed by the main specifications of the electronic board on Page 4 of the manual
confirmed: register map summary (0-based addresses) — confirmed by the BMS variables tables in Section 9 of the manual, where analog variables start at BMS address 1 (0-based address 0) and integer variables have a +208 offset (e.g., air_quality_co2_sensor at BMS address 1 + 208 = 209, which is 0-based address 208)

The trust ladder

Each rung states what it proved and what it did not. Gray until proven; green is earned by hardware only.

generated — A prompt produced it. Unproven — anyone can regenerate this.
structure-verified — Decode path is structurally sound (addresses, widths, finite values). Does NOT prove word order or scaling.
coherence-checked — Round-trips through a real Modbus stack with no overlapping addresses and a word-order-sensitive codec — the map is internally coherent and wire-decodable. Does NOT prove byte-order or scaling match a real device: the emulator is seeded from the map's own types, so a uniformly wrong byte-order still round-trips. Only hardware-verified confirms byte-order/scale on the wire.
hardware-verified (software-key) x1 — Matched a real device with operator-attested readings as ground truth — the only rung that confirms word order + scaling on the wire.

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