Installation Instructions

ManualsBrandsSiemens ManualsHeating controllerDistrict heating and d.h.w. controller RVD120, RVD140

Building Technologies 74 319 0681 0 a CE1G2510en 25.08.2009 1/12

74 319 0681 0

G2510

District heating and d.h.w. controller

RVD120

RVD140

Keep these instructions with the controller!

Installation

Place of installation

• In a dry room, e.g. the heat exchanger room

• Mounting choices:

– In a compact station

– In a control panel (in the front, on the inner wall, or

on a top hat rail)

– In the sloping front of a control desk

• Permissible ambient temperature: 0…50 °C

Electrical installation

• Local regulations for electrical installations must be

complied with

• Only qualified staff may carry out electrical installations

• Cable tension relief must be ensured

• Cable glands made of plastic must be used

• The cables from the controller to the actuators and

pumps carry mains voltage

• The cables to the sensors may not be run parallel to

mains carrying cable (safety class II to EN 60730!)

• If a device is defective or damaged, immediately

disconnect it from power and replace it

Permissible cable lengths

• For all sensors:

Copper cable 0.6 mm dia. 20 m max.

Copper cable 1.0 mm

80 m max.

Copper cable 1.5 mm

120 m max.

• For room units:

Copper cable 0.25 mm

25 m max.

Copper cable from 0.5 mm

50 m max.

• For the data bus

Copper cable ≥0.25 mm

1000 m max.

(2-wire, twisted pairs, shielded)

For details, refer to the modbus specification

Mounting and wiring the base

Wall mounting

1. Separate base from the controller

2. Hold base against the wall. Marking “TOP“ must be

at the top!

3. Mark fixing holes on the wall

4. Drill holes

5. If required, knock out holes on the base for cable

glands

6. Screw base to the wall

7. Wire up base

Rail mounting

1. Fit top hat rail

2. Separate base from the controller

3. If required, knock out holes on the base for cable

glands

4. Fit base to the rail. Marking “TOP“ must be at the top!

5. If required, secure base (depending on the type of rail

used)

6. Wire up base

Flush panel mounting

• Maximum thickness: 3 mm

• Panel cutout required: 138 × 92 mm

1. Separate base from the controller

2. If required, knock out holes on the base for cable

glands

3. Insert base in the panel cutout from behind until stop

is reached. Marking “TOP“ must be at the top!

4. Push lateral tongues behind the front panel

(refer to illustration below)

2462Z06

Wrong Correct

Place tongues on both sides correctly – they may not be

located inside the cutout!

5. Wire up base. Make sure the cable lengths are such

that there is sufficient space to open the control panel

door

Securing the controller to the base

1. Ensure correct position and location of levers by turn-

ing the fixing screws (refer to illustration on the lateral

wall of the unit)

2540Z04

2. Insert controller in the base until stop is reached.

Marking “TOP“ must be at the top!

3. Tighten fixing screws alternately

Summary of content (12 pages)

PAGE 1
74 319 0681 0 G2510 en Installation Instructions RVD120 RVD140 District heating and d.h.w. controller Keep these instructions with the controller! Installation Place of installation • In a dry room, e.g.
PAGE 2
Commissioning Preparatory checks 1. DO NOT switch on power supply yet 2. Check wiring according to the plant connection diagram 3. Check each motorized valve: see if – it is correctly installed (observe direction of flow indicated on the valve body) – the manual lever is disengaged 4. Note with underfloor and ceiling heating systems! The limit thermostat must be set to the correct value. During the functional test, the flow temperature may not exceed the maximum permissible level (usually 55 °C).
PAGE 3
Connection diagrams Low voltage side L RVD120 Modbus RTU RS485 (EIA-485) AC 230 V * A+ B- B3 * Terminating resistor 150 Ω (0.5 W) for the first and last device on the bus.
PAGE 4
Parameter list Settings on the “End-user“ level Press or to activate the “End-user“ level Line Function, display 1 2 3 5 Current nominal room temperature setpoint Reduced room temperature setpoint Frost protection / holiday mode setpoint Heating curve slope Factory setting (Range) Setting Explanations, notes and tips Display function 14 °C (variable*) 8 °C (variable*) 1.5 (0.25…4.0) Current weekday (1…7 / 1-7) * From frost protection setpoint to nominal °C setpoint * From 8 °C to reduced setpoint ..
PAGE 5
49 Reset of operating lines 2…12, 17…23 and 41, 42 50 Faults and until display changes: Press 0 (flashing) = normal status 1 = reset to factory settings completed 10 = fault outside sensor 30 = fault flow sensor 40 = fault return sensor (primary side) 42 = fault return sensor (secondary side) 50 = fault d.h.
PAGE 6
Plant types Plant type 1 – RVD120 and RVD140 Plant type 2 – RVD120 and RVD140 N1 B6 Kx Kx Plant type 4 – only RVD140 Plant type 3 – RVD120 and RVD140 N1 B6 Kx Kx Plant type 5 – only RVD140 Plant type 6 – only RVD140 N1 N1 B6 Kx Kx Plant type 7 – only RVD140 Plant type 8 – only RVD140 Kx B6 B6 Kx Kx Kx A6 B1 B3 B32 B6 B7 B71 B9 H5 Kx 6/12 Room unit Flow sensor (controlled variable) D.h.w.
PAGE 7
2510D01 Heating slope chart s TAM TV Slope Composite outside temperature Flow temperature Function blocks Block “Space heating“ 61 Heating limit (ECO) 62 63 –3 K (--- / –10…+10) 1 (0 / 1) 1 (0…15) Building structure Quick setback without room sensor 69 Heat gains 70 Room temperature influence (gain factor) Parallel displacement of heating curve Overrun time heating circuit pump Frost protection for the plant 71 72 73 74 Max.
PAGE 8
95 Max. limitation of flow temperature heating circuit 96 Min. limitation of flow temperature heating circuit Block “D.h.w heating“ 98 D.h.w. temperature sensor 101 Release of d.h.w. heating 102 Release of circulating pump 103 D.h.w. switching differential 104 Legionella function 105 Setpoint legionella function 106 D.h.w. priority 107 Overrun time charging pump M3 108 Overrun time charging pump (M7 in the secondary d.h.w. circuit, after M3) 109 Max. time d.h.w. heating Block “D.h.w.
PAGE 9
Block “D.h.w. load limit“ 124 Load limit when flow switch is activated 25 % (0…60) Setting in % of the current max. stroke % .................. Block “Additional legionella functions” 126 Time for charging 127 Dwelling time at legionella setpoint 128 Circulating pump operation during legionella function --:-(--:-- / 00:00…23:50) --- min (--- / 10…360) 1 (0 / 1) ......................... min ............... .........................
PAGE 10
143 Display of active limitations 146 Status at terminal H5 Display function 149 Reset of operating lines 56…96, 101…128 and 201…221 150 Software version Display function Block “Modbus parameter” 171 Unit number 172 Parity 173 Baud rate --(--- / 1…247) 0 (0…2) 3 (0…4) 174 Modbus version Block “Solar d.h.w.“ 201 Temperature differential ON solar 202 Temperature differential OFF solar 203 Collector frost protection 204 Collector overtemperature protection 205 Evaporation temperature heat carrier 206 D.
PAGE 11
218 Secondary pressure sensor U1: Pressure at DC 10 V 219 Secondary pressure sensor U1: Pressure at DC 0 V 220 Primary pressure sensor U2: Pressure at DC 10 V 221 Primary pressure sensor U2: Pressure at DC 0 V 222 Reset of the counters "Refill period per charge“ and "Refill period per week“ 10 bar (0…100) 0 bar (–10…0) 10 bar (0…100) 0 bar (–10…0) bar Scaling for DC 10 V ................ bar Scaling for DC 0 V ................ bar Scaling for DC 10 V ................ bar Scaling for DC 0 V ....
PAGE 12
Dimensions max. 3 +1 max. 5 +0.8 max. 8 IEC 61554 - 144 × 96 [mm]  2009 Siemens Switzerland Ltd 12/12 25.08.