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MDV RSJ-420/SZN1-H Installation And Operation Instruction Manual

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Библиотека СОК 
COMMERCIAL HEAT PUMP
INSTALLATION AND OPERATION INSTRUCTIONS
Applicable model
RSJ-420/SZN1-H
Please read this manual carefully before use and keep it properly.
The cover effect drawing is for reference only, and the specific model is subject to the real object.

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Summary of Contents for MDV RSJ-420/SZN1-H

  • Page 1 Библиотека СОК  COMMERCIAL HEAT PUMP INSTALLATION AND OPERATION INSTRUCTIONS Applicable model RSJ-420/SZN1-H Please read this manual carefully before use and keep it properly. The cover effect drawing is for reference only, and the specific model is subject to the real object.

  • Page 3: Table Of Contents

    Ask qualified person for relocating, repairing and maintaining CONTENTS PAGE the unit instead of doing by yourself. Improper installation may result in water leakage, electric shock or fire. SAFETY INFORMATION................ACCESSORIES..................Electric connection work should obey the instructions of local power company, local electric utility and this manual.

  • Page 4: Accessories

    (Press for 3sec to (Press for 3sec to cancel timer) unlock) Water outlet Y-shaped filter Water inlet Wire Connect the PXR-5-L20000- controller master SMR5BK/X5 unit with Matched wire wire harness controller RSJ-420/SZN1-H Fig 3.1 Installation & Owner's Manual...
  • Page 5 3. 2 Dimensions(Unit: mm) 1026 Fig 3.2 3.3 Distance of ground screws (Unit: mm) ≥1400 Unit 1 Unit 2 Through-hole (15 round holes) Fig 3.3 Installation & Owner's Manual...

  • Page 6: Unit Installation

    If short walls are applied, it should be Flanged shorter than the unit. Distance between short walls or louvers to RSJ-420/SZN1-H DN32 DN32 joint unit should either satisfy requirements of unit installation minimum intervals.
  • Page 7 Table 4-2 rope and unit in order to protect the unit. Model RSJ-420/SZN1-H 2） Distance between the hood and air outlet mesh should be ≥1m, and ensure that the hood has enough strength as well as Qty. of units connected reliability in handling process.
  • Page 8 Heat pump Heat pump Hot water inlet sent to the user water heater water heater …… Hot water outlet …… 0# unit 3# unit inlet outlet To drain ditch To drain ditch T5 tank sensor Water Circulation inlet water port Tap water A maximum of 4 heat pump water heaters can be connected in parallel Fig.4.3...

  • Page 9: Installation Of Fittings

    Rated flow when the unit is circulative heating Table 5-1 5.1 Installing the water tank. Model RSJ-420/SZN1-H The water tank temperature sensor can not be placed in the water directly, the water tank must be installed temperature pipe, and the Circulative heating...

  • Page 10: Electric Connection Of The Unit

    2) Connection for 2 units(For reference only, take 3-phase unit as an example) Table 6-1 Power 380-415V 3N～.PE,50Hz Range MODEL RSJ-420/SZN1-H 380-415V 3N~ 50Hz Total breaker L1 L2 L3 N PE 6.2 Power wiring 6.2.1 Specifications of power supply L2 L3 N PE...
  • Page 11 6.5 Electric wiring figure Black Yellow C1 C2 H1 H2 A1 A2 S2 M1 M2 Remote Electric Circulating Water flow Remote alarm auxiliary heater Communicate with Wire controller pump wire controller power supply switch on/off and other units Passive switch signal output only, can’t drive the device directly Please use shield wire to connect Host unit is valid and don’t connect to...
  • Page 12 Protection When the main or slave unit has protection, only stop that unit, other units will not be affected. 6.7 Dial code specification 6.7.1 Dial code settings for RSJ-420/SZN1-H Table 6-4 S3-1：remote ON/OFF functional status (OFF: inactive(default) ON: active) S3-2 ：Defrost periodical choice(OFF: default time by program ON: 28min) S3-3,4：...
  • Page 13 6.8 Electrical control schematic diagram Fig 6.5 Parts names Fig 6.5 Installation & Owner's Manual...
  • Page 14 Table 6-5 Detailed specification Communication port for other unit (Error code E2) Communication port for wire controller (Error code E2) System low pressure protection (Protection code P0) System high pressure protection (Protection code P1) E-heat temp. sensor connector of refrigerant(Protection code E7) Water tank (pook) temp.
  • Page 15 Table 6-6 Detailed specification Left side: CHECK, spot check key, for checking the operating state of unit Right side: FORCE, constraint key, special function for constraint exit Display digital pipe 3-phase 4-wire system power input (Error code E1) Note: No phase and wrong phase of power only be detected on the initial stage of power on, no detection during opertion.

  • Page 16: Trial Run

    Whether drain the water smoothly Whether complete the heat insulation of the water pipe Whether vacuum the pipeline of water side RSJ-420/SZN1-H Whether all the valves in the water side pipeline are under Heating Capacity correct status...

  • Page 17: Fault Analysis And Solutions

    8. FAULT ANALYSIS AND SOLUTIONS 8.1 Fault analysis and solutions Table 8-1 CAUSE PHENOMENA When the unit is defrosting, the sound of the 4-way valve being shifted. Air supply motor stop automatically to defrost. At the begining and the end of the defrost process, sound is give out in motor valve White aerosol or globule is give occur.
  • Page 18 If has the following error, please call your service agent. Table 8-2 Error Possible reason Detect and settle measure 1. Power error 1. Connected with wrong phase sequence 2. Wire connection is loosen 2. Check and fasten again Compressor is unable 3.
  • Page 19 8.2 Failure of wired controller and its reason 8.2.1 Failure information and code In case the unit runs under abnormal condition, failure protection code will display on both digital screen of PCB and wired controller, and the indicator on the wired controller will flash with 5Hz. The display codes are shown in the following table: Table 8-3 Error code Reason...
  • Page 20 CAUTION Continuous come out any error for 4 times within 2 hours, then the unit will stop running. At the same time, it will be counted as once. After 1 hour, the unit will be automatically running again. If the stop frequency reaches 5 times, the protection code will be displayed and the unit should be repowered on again. When the unit satisfies the unit stopping conditions, the counting of stop frequency will be cleaned.

  • Page 21: Maintenance

    <50ppm sure the unit has no refrigerant leakage. 9) When the user can not deal with the unit error, please contact the MDV Service Center. 10)Switch check for the electricity leakage protector. CAUTION 11)The leakage flow protector of Electric control box operates a period...

  • Page 22: Specifications

    10. SPECIFICATIONS Table 10-1 RSJ-420/SZN1-H Model Heating capacity (kW) Nominal input power (kW) 9.65 Rated Input(kW) 14.5 Nominal input current(A) 19.7 0.85 Nominal water output(m Circulating heating rated water flow(m Water resistance in circul- ative rated water flow(kPa) Rated input power(kW) 14.5...
  • Page 24 MD13IU-029JW 16125300000056...
  • Page 26 更改记录表（仅做说明用，不做菲林） 更改页码 版本升级 更改人 更改日期 更改主要内容 印刷页（或默认页码） 罗静 14.4.10 电控整改 整本更新 周峰 罗静 认证整改、 14.4.10 P1\2 汤志国 增加过滤器 罗静 更新参数表 14.6.10 汤志国 +环境温度范围 罗静 按认证要求更新 14.7.10 整本更新 汤志国 内容 罗静 按认证要求更新 14.8.7 p1\2\13 汤志国 内容 罗静 14.9.15 更新接线铭牌 周峰 罗静 更新故障代码表...

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