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Gas-Fired Condensing Hot Water Boiler
De Dietrich Gas 310/610 ECO Series
Boiler may
not be exactly as
illustrated.
Installation and
Operating Manual
G310E 01 v1.0 04/2010
Gas 310 ECO
• Fully modulating (5:1) 20-100%
• Cast Aluminum sectional boiler
• Reduced emissions
• Compact and light weight design
• Broad output range from 63 to 3,911 MBH/18 to 1,146 kW
or more in cascade installations
• Gas 310 ECO - 5 models
• Gas 610 ECO - 4 models
Gas 610 ECO
www.dedietrichboilers.com
Boiler may
not be exactly as
illustrated.
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Table of Contents
Related Manuals for DeDietrich 310 ECO Series
Summary of Contents for DeDietrich 310 ECO Series
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Page 1: Operating Manual
Gas-Fired Condensing Hot Water Boiler De Dietrich Gas 310/610 ECO Series Boiler may Gas 610 ECO Gas 310 ECO not be exactly as Boiler may illustrated. not be exactly as illustrated. • Fully modulating (5:1) 20-100% • Cast Aluminum sectional boiler •... - Page 2 De Dietrich Gas 310/610 ECO Warning: Before you operate this boiler, read this manual carefully and take extra precautions to all safety and warning symbols or important items. The operating manual is part of the documentation along with the boiler. The installer is required to explain your heating system and boiler operating instructions.
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Page 3: Table Of Contents
De Dietrich Gas 310/610 ECO TABLE OF CONTENTS PREFACE 1. SAFETY INSTRUCTIONS Symbols General Instructions Modifications – Spare parts 2. DESCRIPTION OF BOILER 3. DESIGN Boiler version Operating principle 4. TECHNICAL DATA Dimensions Technical data Quotation specifications Delivery options Gas 610 Quotation Specification Delivery and ordering options 5. - Page 4 De Dietrich Gas 310/610 ECO Connections Wiring diagram Sequence of operation Boiler control 8.6.1 Gas 310 Introduction 8.6.2 Gas 310 Modulating controls general A. Single boiler B. Multiple boiler 8.6.3 BMS Analog control 8.6.4 On/Off control 8.6.5 High/Low control 8.6.6 2-Stage control 8.6.7 4-Stage High/low control...
- Page 5 De Dietrich Gas 310/610 ECO Table 16 – Service level setting mode 13.2.1 Minimum fan speed 13.2.2 Maximum fan speed 13.2.3 Forced part load time 13.2.4 Cycling prevention delay time 13.2.5 Required flow temperature 13.2.6 Switch point high/low operation 13.2.7 Shunt pump post-purge time T from control stops point to start point () 13.2.8...
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Page 6: Preface
De Dietrich Gas 310/610 ECO PREFACE Read these instructions carefully, before putting the boiler into operation, familiarize your-self with its control functions, operation and strictly observe the instructions given. Failure to do so may invalidate warranty or prevent the boiler from operating. The Installation and commissioning of the boiler needs to be performed by a licensed and trained heating contractor. -
Page 7: Safety Instructions
De Dietrich Gas 310/610 ECO SAFETY INSTRUCTIONS 1.1 Symbols The following symbols are used in this document to emphasize certain instructions. This is in order to increase your personal safety and to safeguard the technical reliability of the boiler. Instructions must be followed closely to avoid personal injury or serious damage to the unit or the ... -
Page 8: Description Of Boiler
De Dietrich Gas 310/610 ECO The boiler must not be modified or fitted with non OEM spare parts without the express written approval of DDR Americas Inc. [De Dietrich Boilers]. GENERAL DESCRIPTION OF BOILER The Gas 310/610 ECO boiler is a fully assembled, free standing, gas fired (natural gas only), fully modulating, high efficiency condensing boiler and is supplied, plastic wrapped, crated on a pallet. -
Page 9: Design
De Dietrich Gas 310/610 ECO 3 DESIGN 3.1 Boiler Version Fig. 02 Cross-section Gas 310 ECO (Left hand boiler illustrated). Gas 610 boiler consists of Gas 310-L and Gas 310-R. The service side of the boiler (with the heat exchanger inspection cover) is the front. 1. -
Page 10: Operating Principle
De Dietrich Gas 310/610 ECO e. Flue gas damper (optional for Gas 310 boiler, standard for Gas 610 boiler) 3.2 OPERATING PRINCIPLE Combustion air is drawn into the inlet connection from the plant room (room ventilated version) or from outside via the eccentric flue system (room sealed) by an air supply fan. -
Page 11: Technical Data
De Dietrich Gas 310/610 ECO 4 TECHINCAL DATA 4.1 Dimensions fig. 03 Elevation drawings Flow connection 3 inch ANSI 150# flange Return connection 2.5 inch Gas connection 2 inch NPT (BSP to NPT adapter provided) Condensate drain 1 ¼... -
Page 12: Technical Data
De Dietrich Gas 310/610 ECO 4.2 GAS 610 ECO TECHNICAL DATA Back view = D = Service side view Front view Heat exchanger cleanout hatch ... - Page 13 De Dietrich Gas 310/610 ECO Gas 610 ECO Series MAIN DIMENSIONS Model Gas610-6 Gas610-7 40.5 1029 14.4 10.2 57.1 1450 50.8 1290 Gas610-8 Gas610-9 Model Gas610-6 57.6 1463 35.5 Gas610-7 43.7 1110 22.2 26.8 55.2 1402 Gas610-8 72.95 1853 39.6 1007 Gas610-9 35.6...
- Page 14 De Dietrich Gas 310/610 ECO Gas 610 ECO Series Service & Combustible Clearances (MIN) 31.5 Gas 610 ECO Series Base & leveling legs dimensions (Square) Model Gas610-6 1590 62.6 1118 Gas610-7 57.08 1450 24.8 630 4.1 104 2.16 Gas610-8 1980 59.4 1508 Gas610-9...
- Page 15 De Dietrich Gas 310/610 ECO De Dietrich Gas 310 ECO Boiler Model Unit 310-5 310-6 310-7 310-8 310-9 General On-Off, 2 Stage or Fully Modulating Firing Sequence Operation Minimum Fuel Input MBH [kW] 205 [60] 256 [75] 311 [91] 358 [105] 413 [121] Maximum Fuel Input MBH [kW]...
- Page 16 De Dietrich Gas 310/610 ECO CSA Certified Avg. 97.4 – (potential up to ≅ 99.9%) 95.3 – (potential up to ≅ 99.9%) 3.5-14/8.5-35 126/52 Flue gas temperature at 104/86 Table 02, Technical data...
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Page 17: Quotation Specifications
De Dietrich Gas 310/610 ECO 4.3 GAS 310 ECO QUOTATION SPECIFICATION: Fully assembled cast aluminum floor Available for conventional chimney with standing sectional hot water boiler. room or direct vent, CLV and sidewall Premix burner with stainless steel vented venting systems. -
Page 18: Gas 610 Quotation Specification
De Dietrich Gas 310/610 ECO 4.5 GAS 610 QUOTATION SPECIFICATION: Fully assembled cast aluminum floor Available for conventional chimney, standing sectional hot water boiler. direct vent and sealed combustion Premix burner with stainless steel venting systems. cylinder with perforated holes for precise Fully factory pressure and fire tested. -
Page 19: Efficiency Information
De Dietrich Gas 310/610 ECO 5 EFFICIENCY INFORMATION 5.1 Combustion efficiency ▪ Theoretically efficiency up to 99.9% can be achieved with return water temperature of 104°F [40°C], the combustion efficiency according to ANSI Z21.13b-/CSA 4.9b-2007 average = 95.3% 5.2 Thermal efficiency [heat to water] ▪... - Page 20 De Dietrich Gas 310/610 ECO It is advisable (preferable) to install the Gas 310 ECO as follows: Place the crate c/w the boiler in the Single boiler “right hand version” Single boiler “left hand version” boiler room. Make sure there is enough room at one end of the crate for the boiler and ramp and clearance for the crate to be removed (at least...
- Page 21 De Dietrich Gas 310/610 ECO It is advisable (preferable) to install the Gas 610 ECO as follows: Place the crate c/w the boiler in the boiler room. Make sure there is enough room at one end of the crate for the boiler and ramp and clearance for the crate to be removed (at least 10ft [3M]). ...
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Page 22: Flue Gas Discharge And Air Supply
De Dietrich Gas 310/610 ECO 7.3 Flue gas discharge and air supply Venting 7.3.1 General any flammable liquids, fluids, vapors or materials The Gas 310/610 ECO is suitable for both near the vicinity of the boiler. conventional room-supplied or direct vent Special attention: (sealed combustion air) applications. -
Page 23: Chimney & Clv Systems
De Dietrich Gas 310/610 ECO 7.3.6 Conventional Chimney & CLV Systems Application Requirements: Warning: The boiler should never be operated in a negative building pressure. Caution should be exercised with exhaust fans, air handling & other devices, that could affect the buildings air pressure or combustion air supply. -
Page 24: Direct Vent Or Dvs Systems
De Dietrich Gas 310/610 ECO 7.3.6 Continued L = Max CLV system application (Different Pressure Zones) This venting system uses two separate vents that terminate a different points of the building (2 different pressure zones), a L = Max vent for combustion air and another for the flue gases. -
Page 25: Co-Venting Precautions
De Dietrich Gas 310/610 ECO Warning & precautions: Venting lengths must not exceed the minimum and maximum equivalent lengths shown in table 07. Any horizontal runs of the venting must slope towards the boiler ½” per linear foot. This venting system uses a single vent to discharge all flue gases to the outside, combustion air provided within the boiler room, the air source must be sized in accordance to national codes CSA B149 &... -
Page 26: Vent Terminations Precautions
De Dietrich Gas 310/610 ECO 7.3.9 Vent terminations installation precautions: [Consult national & local codes for other requirements] All exhaust terminations for conventional chimney must be finished with a finishing cone with tapered end, with a bird/rodent screen. All sidewall, direct vent, CLV systems must be finished with either a 90° elbow TEE termination, the combustion air inlet must be a 90°... -
Page 27: Installation Details
De Dietrich Gas 310/610 ECO 7.4 INSTALLATION DETAILS 7.4.1 Water pressure The boiler is suitable for a maximum working pressure of 100 psi [6.8 bar], the system pressure shall be at least 12 psi [0.8 bar] 7.4.2 Condensate discharge Discharge the condensate directly into a drain. Only use synthetic material for the connecting pipe-work because of the acidity of the condensate (pH 2-5) and allow a min. -
Page 28: Typical Water System Layout
De Dietrich Gas 310/610 ECO 7.6 Typical water system layout Boiler Water Connections [Minimum] The piping diagram illustrates the minimum boiler Legend system controls needed, the by-pass system is not Feed Water Main Pressure-Temp Gauge necessary, but can be used in multiple heating Boiler Return Safety Relief Valve temperature circuits. -
Page 29: Installation Instructions For Electrical Installer
De Dietrich Gas 310/610 ECO INSTALLATION INSTRUCTIONS FOR ELECTRICAL INSTALLER 8.1 General The De Dietrich Gas 310/610 ECO is supplied as standard with electronic operating and flame ionization safety controls with a specially designed microprocessor at the heart of the system. The boiler is pre-wired as shown in the wiring diagram in fig. -
Page 30: Fuse Ratings
De Dietrich Gas 310/610 ECO 8.2.4 Fuse ratings Fuses on the circuit board on the control unit: F1 – 2 AF mains voltage fuse (automatic fuse) F2 – 2 AT for gas valve multiblock F3 – 2 AT for 24 V circuit F10 –... -
Page 31: Connections
De Dietrich Gas 310/610 ECO 8.3 Connections The terminal strips and boiler connectors can be seen once the control box cover is removed. The left-hand terminal strip (X29) is used for 24-volt connections. The right-hand terminal strip (X27) is used for 120-volt connections. -
Page 32: Wiring Diagram
De Dietrich Gas 310/610 ECO 8.4 Wiring Diagram 12AT fig. 18 wiring diagram... - Page 33 De Dietrich Gas 310/610 ECO 8.4 Wiring Diagram - Continued...
- Page 34 De Dietrich Gas 310/610 ECO Field wiring examples (Additional wiring examples are supplied separately) Example 1, local modulation LEGEND: Typical Gas310/610 boiler field wiring 1 Main fuse disconnect • On/Off control or jumper – modulates according to internal set-point (Connect X29.9 & 2 Service switch X29.10) 3 External Hi Limit...
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Page 35: Sequence Of Operation
De Dietrich Gas 310/610 ECO 8.5 Switch sequence diagram 8.6 Boiler control 8.6.1 Gas 310 Introduction, Gas 610 each module Fig. 19 Switch sequence diagram [04.31H.79.00003] The De Dietrich Gas 310/610 ECO can be controlled using one of the following methods: ... -
Page 36: Gas 310 Modulating Controls General
De Dietrich Gas 310/610 ECO 8.6.2 Gas 310 Modulating controls general (2 wire control) To make full use of the boiler’s modulating feature, a 0-10v [dc] input control will be needed. Some controls can provide weather compensation to achieve maximum efficiency and minimum boiler cycling whilst maintaining design condition within the building. -
Page 37: On/Off Control
De Dietrich Gas 310/610 ECO Gas 310 Temperature based 68 – 194°F [20-90°C] Set the value of the boiler control operation parameter to . To set the ratio between voltage and the desired flow temperature (see par. 13.2.5 and fig. 21) 0 to 0.9 Volt = boiler off 1 Volt... -
Page 38: 2-Stage Control
De Dietrich Gas 310/610 ECO C] set the value of the boiler control operation Gas 610 Temperature based 68 – 194 F [20-90 parameter to . To set the ratio between voltage and the desired flow temperature (see par. 13.2.5 and fig. -
Page 39: Other Outputs
De Dietrich Gas 310/610 ECO 8.7.4 Other outputs Output Signal Description [0-10Vdc] 8.7.5 Analog output Depending on the option 0 Volts Boiler off - standby settings in the service level (see 0.5 Volts Alarm section 13.2.13), the analog 1.0 Volts Shut-off output signal is able to transmit Output between 20 &... -
Page 40: External Gas Valve
De Dietrich Gas 310/610 ECO 8.8 Optional Inputs 8.8.1 System pressure sensor (optional) The system pressure sensor shutdown the boiler (with shutoff code ) when the minimum water pressure is reached (adjustable 11-100 psig [0.8 – 6 bar] factory setting = 14.5 psig [bar], see section 12.2.12) the hydraulic pressure sensor must be connected on the 5-pin female plug X22 on the 24-volt terminal strip. -
Page 41: Return Butterfly Valve
De Dietrich Gas 310/610 ECO 8.8.5 Return butterfly valve 3-way valve (supplied by others) A butterfly valve should be installed in return for each boiler module is hydraulically disconnected from the system. The return butterfly valve is fully open the valve end switch contact is closed, allowing the boiler to run. -
Page 42: Gas Installation Instructions
De Dietrich Gas 310/610 ECO 9.0 INSTALLATION INSTRUCTIONS FOR GAS INSTALLER 9.1 Gas connection The Gas 310/610 is suitable for use with natural gas only. The gas connection is at the top of the boiler (see fig. 02). The boiler is fitted with a gas filter as standard to prevent dirt from contaminating the gas valve or burner assembly. -
Page 43: Commissioning
De Dietrich Gas 310/610 ECO 10.0 COMMISSIONING Warning: If you do not follow the commissioning instructions exactly, a fire or explosion may result causing property damage, personal injury or loss of life. 10.1 Initial lighting 15. Adjust the boiler controls to heat demand. 1. - Page 44 De Dietrich Gas 310/610 ECO 17 Continued: a. Check and correct, if necessary, the boiler for correct gas/air ratio set-up. Checking takes place on full and part load, adjustment takes place only on the gas valve multiblock. For checking and adjusting are required: an electronic CO -gauge (on the basis of O ) and a gas pressure gauge.
- Page 45 De Dietrich Gas 310/610 ECO ° 18. Check gas leakage control and minimum gas 20. Heat the system to approximately 176 F [80 and switch off the boiler. pressure switch (if installed); Parameter 21. Bleed the system and check the water must be set to a value greater than or equal to pressure.
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Page 46: Shutdown
De Dietrich Gas 310/610 ECO 10.2 Shutdown 1. Switch off the on/off switch of the boiler. With this, a possible boiler control will be without power. 2. Close the main shutoff valve. Important!! – No frost protection when the boiler power is turned off... -
Page 47: Control And Safety Equipment
De Dietrich Gas 310/610 ECO 11.0 CONTROL AND SAFETY EQUIPMENT 11.1 General The boiler is supplied with a standard set of defaults pre-programmed for normal operation but can be tailored by the engineer to suit most site conditions. These values are set and read, using the built-in instrument panel or with a laptop/computer or PDA (with optional software and interface). -
Page 48: Led Indicators
De Dietrich Gas 310/610 ECO 11.1.2 LED indicators The instrument panel has 4 indicating LED’s with the following functions: The LED above the [-] key (in the symbol); when illuminated green confirms the boiler is in manual ▪ override (see section 11.2) ▪... -
Page 49: Display Of Values
De Dietrich Gas 310/610 ECO 11.3 Display of value The display has only two digits available therefore values over this are displayed as followed: ▪ Values from 00 to 99 will be indicated without any decimals points. =100, =110, =199 ▪... -
Page 50: Read Out Mode
De Dietrich Gas 310/610 ECO 12.2 Read-out mode ( Read-out mode is used to display various values. Press the key until appears in the code window (dot flashes). Select the required code using the key. Read-out Code Description Read-out range/comments... -
Page 51: Control Strategy
De Dietrich Gas 310/610 ECO 12.3 Control strategy 12.4 Shut-off () During normal operation, the boiler control can operate according to a specific strategy. Most control 12.4.1 Shut-off During shut-off, the code window displays and the strategies are meant to keep the boiler burning for as long as possible, regardless of changes in flow and ... -
Page 52: Counter Mode
De Dietrich Gas 310/610 ECO 12.5 Counter mode ( ) (service level) 12.5.1 General The boiler control records various data on the combustion trend of the boiler. This data can be read out in counter mode. The following data can be read out: ▪... -
Page 53: Setting Mode
De Dietrich Gas 310/610 ECO 13.0 SETTING MODE 13.1 User level setting mode ( Setting mode is used to change various settings to suit individual requirements. The required code is selected by pressing the key until appears in the code window. -
Page 54: Pump Run On Time
De Dietrich Gas 310/610 ECO 13.1.2 Pump run on time ( Pump run on time can be adjusted (Please refer to installation contractor) Code Description Pump post purge = 10 seconds -Press the -key until the digit (with dot) appears in the code-display. - Page 55 De Dietrich Gas 310/610 ECO Code Description Setting Range Factory setting - x 100 rpm Minimum fan speed (hundreds) 310/610-5 = 15 = 1500 rpm see section 13.2.1 310/610-6 = 16 = 1600 rpm 310/610-7 = 11 = 1100 rpm ...
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Page 56: Minimum Fan Speed
De Dietrich Gas 310/610 ECO 13.2.1 Minimum fan speed ( and ) Parameter , adjustable between 06 and 60 (x100 rpm) parameter , adjustable between 0 and 100 (x 1 rpm). This setting is only active if setting has been selected in the boiler control: high/low control (see section 13.1.3). -
Page 57: T From Control Stops Point To Start Point
De Dietrich Gas 310/610 ECO 13.2.8 from control stops point to start point Parameter , adjustable from 9 to 36°F [5 to 20°C] This value sets the flow temperature at which the boiler will cut back in after a control stop. The boiler will always goes to a control stop when the flow temperature equals the flow set-point temperature >... -
Page 58: Low Speed With H/L Control
De Dietrich Gas 310/610 ECO Options Value Example (Factory setting is always = 0) Boiler water pressure sensor off ▪ Water pressure sensor on = 1 Boiler water pressure sensor on ▪ Analog output % = 0 Analog output Heat output % ▪... -
Page 59: Fault-Finding
De Dietrich Gas 310/610 ECO 14 FAULT-FINDING Description Apart from failure codes (lock-out), the system Code also knows shut-off codes (see section 12.4). In the latter case only the two dots in the window will Failure code (see table 19) ... -
Page 60: Summary Of Failure (Lock-Out)
De Dietrich Gas 310/610 ECO 14.4 Failure (lock-out) codes (requires user intervention, manual reset of control) When a failure code is displayed, both the code window and the window will flash alternately. Except for failure (does not flash). Failure Description Cause/check points... -
Page 61: Table 23 Failure Codes
De Dietrich Gas 310/610 ECO - Fan defective Fan not operating - Fan cable is corroded, resulting in absence of voltage or control signal. - Check the fan cable connectors on both the fan and the automatic burner unit side. -
Page 62: Inspection And Maintenance
De Dietrich Gas 310/610 ECO 15 INSPECTION AND MAINTENANCE INSTRUCTIONS 15.1 General The De Dietrich Gas 310/610 ECO has been designed to need minimum maintenance, but to ensure optimum efficiency, we advise that once a year the boiler should be checked and if necessary cleaned and reset. All service and maintenance must be carried out by a qualified heating contractor with the relevant training and certifications. -
Page 63: Maintenance
De Dietrich Gas 310/610 ECO 15.4 Maintenance If during the annual inspection combustion results indicate that the boiler is no longer operating at the optimum level additional maintenance should be carried out as follows: The Gas310/610 ECO boiler or any of its components does not contain any crystalline silica. Warning –... -
Page 64: Fan Cleaning
De Dietrich Gas 310/610 ECO 15.4.4 Cleaning the fan Use compressed air or a synthetic brush to clean the fan, be careful not to disturb the balance clips on the vanes. Fig. 31 fan being cleaned with soft brush 15.4.5 Cleaning the heat exchanger Release the retaining nuts from heat exchanger cover plate, remove plate, being careful not to damage the gasket, store safely. -
Page 65: Condensate Collector Cleaning
De Dietrich Gas 310/610 ECO 15.4.7 Cleaning the condensate collector Clean the condensate collector by removing the inspection cover (next to the flue gas discharge) and then rinsing the collector with water Fig. 34 – Condensate collector inspection 15.4.8 Cleaning the siphon Remove the complete siphon (located underneath condensate collector beneath the flue connection). -
Page 66: Gas Filter Check
De Dietrich Gas 310/610 ECO 15.4.10 Gas filter check Measure the pressure differential at measuring points, P and P (see fig. 37) on the gas filter. • If the value is above 4.0” w.c. [10 mbar]: gas filter must be replaced. -
Page 67: Explode Part View
De Dietrich Gas 310/610 ECO 15.5 Exploded view and spare parts list (right hand version shown) -
Page 68: Spare Parts Listing
De Dietrich Gas 310/610 ECO Fig. 39 Exploded view Item Part # Description Part # Description Item # boiler casing/frame Premix burner S100410 Casing top panel 6 sections 1001 S100441 Valve gas multi block 5 sections 3001 S100411 Casing top panel 7 sections 1001 S100442 Valve gas multi block 6 sections... - Page 69 De Dietrich Gas 310/610 ECO S54520 Access plate heat exchanger 5 sections 2028 S100488 Adapter 2" NPT (Gas inlet pipe) 3045 S54521 Access plate heat exchanger 6 sections 2028 S100460 Air-pressure differential sensor 3011 S54522 Access plate heat exchanger 7 sections 2028 S58604 Gas leakage control or gas pressure control...
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Page 70: Appendices
De Dietrich Gas 310/610 ECO 16 ADDENDICES... -
Page 71: Control Menu
De Dietrich Gas 310/610 ECO 16.1 Control menu Fig. 40 Control menu flow chart... -
Page 72: Shut-Off Codes
De Dietrich Gas 310/610 ECO 16.2 Shut-off codes... - Page 73 De Dietrich Gas 310/610 ECO 16.2 Shut-off codes (Continued) Table 25 Shut-off codes...
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Page 74: Commissioning & Maintanence
De Dietrich Gas 310/610 ECO 17 BOILER COMMISIONING REPORT & MAINTENANCESCHEDULE 17.1 – Boiler Commissioning Report LOCATION OF INSTALLATION Address City-Town Province or State Country Mail Code Phone # E-Mail Installer Company Phone # EQUIPMENT DETAILS Boiler Model Serial # Control Model Serial # Burner Model... -
Page 75: Boiler Control Settings
De Dietrich Gas 310/610 ECO 17.2 Boiler Control Settings Site Applied Boiler Control Settings: [Setting Mode] Advanced Setting Mode – Service Level ... - Page 76 DDR Americas Inc. 1054 North DuPage Avenue Lombard, Illinois 60148 USA Tel: 630-953-2374 / Fax: 630-953-2376 1090 Fountain Street North, Unit 10 Cambridge, Ontario N3E 1A3 Canada Tel: 519-650-0420 / Fax: 519-650-1709 Toll Free: 800-943-6275 www.dedietrichboilers.com info@dedietrichboilers.com G310E 01 v1.0 04/2010...
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