Table of Contents
Advertisement
Quick Links
GAS FIRED HEATING, VENTILATION AND COOLING UNITS
INSTALLATION, COMMISSIONING AND SERVICING
Please read this document carefully before commencing installation, commissioning and/or servicing.
Leave it with the end user/site agent to be placed in their premises technical file after installation.
Improper installation, adjustment, alteration, service or maintenance can cause property damage, injury or death.
The manufacturer does not take any responsibility in the event of non-observance of the regulations concerning the connection of the apparatus causing a
dangerous operation possibly resulting in damage to the apparatus and/or environment in which the unit is installed.
MANUAL PART NO. D301315 ISS 0
PREEVA NEOS
MANUAL
These appliances meet the following EC directives
(EU) 2016/426: GAR
DIR 2014/30/EU:EMC
DIR 2014/35/EU:LVD
DIR 2006/42/EC:MD
WARNING
All work must be carried out by appropriately qualified persons.
ErP
ErP Lot 21
Seasonal Efficiency and
2021
NOx compliant
Advertisement
Table of Contents
Related Manuals for Nortek PREEVA NEOS
Summary of Contents for Nortek PREEVA NEOS
- Page 1 ErP Lot 21 Seasonal Efficiency and 2021 NOx compliant PREEVA NEOS GAS FIRED HEATING, VENTILATION AND COOLING UNITS INSTALLATION, COMMISSIONING AND SERVICING MANUAL These appliances meet the following EC directives (EU) 2016/426: GAR DIR 2014/30/EU:EMC DIR 2014/35/EU:LVD DIR 2006/42/EC:MD Please read this document carefully before commencing installation, commissioning and/or servicing.
-
Page 3: Table Of Contents
Contents General Information (G) Maintenance and Servicing (MS) PREEVA Neos range .........4 Model 25-70 component layout ......29 Using this manual ..........4 Model 100 component layout ......30 Warranty ............4 Maintenance schedule ........31 Important notice to installers ......5 Heat exchanger maintenance ......31 Health and safety ..........6... -
Page 4: General Information (G)
Page No 4 of 52 Reznor, PREEVA Neos, Installation Manual, EN 2021-05, D301315 Iss 1... -
Page 5: Important Notice To Installers
Reznor, PREEVA Neos, Installation Manual, EN 2021-05, D301315 Iss 1 Page No 5 of 52... -
Page 6: Health And Safety
The manual should be kept in a safe place for future reference. In case of persistent problems, contact your distributor. Page No 6 of 52 Reznor, PREEVA Neos, Installation Manual, EN 2021-05, D301315 Iss 1... -
Page 7: Uncrating / Preparation
Minimum fork Minimum fork length requirement work for balance Figure 1 - Handling Criteria Reznor, PREEVA Neos, Installation Manual, EN 2021-05, D301315 Iss 1 Page No 7 of 52... -
Page 8: Technical Data
Maximum airflow measurement for PRN100 unit is without any optional extras i.e. filter cabinet, cooling coil, weather hood - please contact manufacturer for details of maximum airflow / external static pressure with the options available for the unit. Page No 8 of 52 Reznor, PREEVA Neos, Installation Manual, EN 2021-05, D301315 Iss 1... -
Page 9: Dimensions
For alternative configurations please consult technical sales. Unit shown with left hand access, right hand is available but must be specified at time of ordering as this cannot be changed once unit is built. All Dimensions have a tolerance of +/- 3mm. Reznor, PREEVA Neos, Installation Manual, EN 2021-05, D301315 Iss 1 Page No 9 of 52... - Page 10 For alternative configurations please consult technical sales. Unit shown with left hand access, right hand is available but must be specified at time of ordering as this cannot be changed once unit is built. All Dimensions have a tolerance of +/- 3mm. Page No 10 of 52 Reznor, PREEVA Neos, Installation Manual, EN 2021-05, D301315 Iss 1...
-
Page 11: Clearance Distances
The heater must be fastened securely to any air is excessive, such as at entrance doors base mount framework. and shipping doors, it is desirable to locate Reznor, PREEVA Neos, Installation Manual, EN 2021-05, D301315 Iss 1 Page No 11 of 52... -
Page 12: Outdoor Model Location
A minimum distance of 1500mm must be maintained on the controls side of the appliance for access and maintenance. Page No 12 of 52 Reznor, PREEVA Neos, Installation Manual, EN 2021-05, D301315 Iss 1... -
Page 13: Minimum Temperature Requirements
Consideration also needs to be given to the prevention of condensation forming inside the burner controls compartment. Reznor, PREEVA Neos, Installation Manual, EN 2021-05, D301315 Iss 1 Page No 13 of 52... -
Page 14: Ductwork Connections
Page No 14 of 52 Reznor, PREEVA Neos, Installation Manual, EN 2021-05, D301315 Iss 1... - Page 15 Mass Flow Rate Flue Gases High Fire G25.3 kg/h 25.47 33.70 41.57 49.28 66.77 98.99 Flue Pressure at Maximum Flue Resistance Table 2 Flue Gas Properties Reznor, PREEVA Neos, Installation Manual, EN 2021-05, D301315 Iss 1 Page No 15 of 52...
-
Page 16: Type B Appliances
Roof B23 / B53 Figure 5 Approved appliances Type B 1. Combustion air inlet with grille 2. Flue pipe outlet collar Wall B23 / B53 Page No 16 of 52 Reznor, PREEVA Neos, Installation Manual, EN 2021-05, D301315 Iss 1... -
Page 17: Type C Appliances
Figure 6 Approved appliances Type C Reznor, PREEVA Neos, Installation Manual, EN 2021-05, D301315 Iss 1 Page No 17 of 52... -
Page 18: Condensate Drain
Support gas piping with pipe action of liquefied petroleum gas or any other hangers, metal strapping, or other suitable chemical constituents of the gas being supplied. material. Page No 18 of 52 Reznor, PREEVA Neos, Installation Manual, EN 2021-05, D301315 Iss 1... - Page 19 25 / 30 17 / 18 2ELL Natural Gas (G20 / G25.3) 20 / 25 25 / 30 17 / 20 Table 4 Gas Supply Details Reznor, PREEVA Neos, Installation Manual, EN 2021-05, D301315 Iss 1 Page No 19 of 52...
-
Page 20: Electrical Supply And Connections
1.5 metres above floor level. Follow the thermostat manufacturers instructions. The thermostat must be suitable for potential free contacts. Page No 20 of 52 Reznor, PREEVA Neos, Installation Manual, EN 2021-05, D301315 Iss 1... -
Page 21: Wiring Connections
(230v) Burner Lock-out Reset Remote Enable (0-10VDC) Fan only - Cooling Mode 230v Time control for CRFR Figure 8 Wiring Connections on the terminal board Reznor, PREEVA Neos, Installation Manual, EN 2021-05, D301315 Iss 1 Page No 21 of 52... -
Page 22: Commissioning And Operation (C)
• Ensure that fuses are of the correct rating and fuse value. The condensation drain pipe and trap must be visually tested for water tightness. Page No 22 of 52 Reznor, PREEVA Neos, Installation Manual, EN 2021-05, D301315 Iss 1... -
Page 23: Air / Gas Ratio Controls
Throttle is adjusted at high fire. To adjust the offset, use a T40 torx key to remove the protection screw on the gas valve. Offset is adjusted at low fire. Reznor, PREEVA Neos, Installation Manual, EN 22021-05, D301315 Iss 1 Page No 23 of 52... -
Page 24: Gas Conversion
For measuring offset pressure a low range gauge with a resolution of 0.1 Pa or better is required. Read section on air-gas ratio control adjustment before proceeding. Page No 24 of 52 Reznor, PREEVA Neos, Installation Manual, EN 2021-05, D301315 Iss 1... -
Page 25: Commissioning - Handover
• Disconnect pressure gauges and tighten screws in gas valve test points. • Remove heat demand and allow heater to shut-down. • Reconnect thermostat connections if bypassed for commissioning. Reznor, PREEVA Neos, Installation Manual, EN 22021-05, D301315 Iss 1 Page No 25 of 52... - Page 26 98.1 97.7 97.5 97.4 97.8 Ignition Controller Program Key Ω 3,300 4,700 6,800 10,000 22,000 33,000 Table 5 Nominal Combustion Values with service door closed Page No 26 of 52 Reznor, PREEVA Neos, Installation Manual, EN 2021-05, D301315 Iss 1...
-
Page 27: Operation
In the event of overheating for any reason, shutdown of the air heater. overheat controls operate to switch off the burner. Reznor, PREEVA Neos, Installation Manual, EN 22021-05, D301315 Iss 1 Page No 27 of 52... - Page 28 Post-purge time This is the time of 255 seconds between burner shut-down and the moment the combustion fan is de-energised. Figure 10 Ignition system timetable Page No 28 of 52 Reznor, PREEVA Neos, Installation Manual, EN 2021-05, D301315 Iss 1...
-
Page 29: Model 25-70 Component Layout
LC1 and LC3 safety thermostat bracket Combustion fan Union Venturi LC3 safety thermostat Enlarged view reset under cover Ignition transformer Lockout reset board Relays Program key Ignition controller Reznor, PREEVA Neos, Installation Manual, EN 2021-05, D301315 Iss 1 Page No 29 of 52... -
Page 30: Model 100 Component Layout
Gas valve assembly (see enlarged view) Control assembly (see enlarged view) Combustion fan Venturi Gas Valve Ignition transformer Lockout reset board Relays Program key Ignition controller Page No 30 of 52 Reznor, PREEVA Neos, Installation Manual, EN 2021-05, D301315 Iss 1... -
Page 31: Maintenance Schedule
Remove any external dirt or dust accumulation. Visually check the heat exchanger for cracks and holes. If a crack or hole is observed, replace the heat exchanger. Reznor, PREEVA Neos, Installation Manual, EN 2021-05, D301315 Iss 1 Page No 31 of 52... -
Page 32: Venturi Cleaning And Replacement
(2 screws models 25-70 and 6 screws model 100 as per the photographs shown under gas valve replacement). PREEVA Neos 100 gas valve fixing screws Page No 32 of 52 Reznor, PREEVA Neos, Installation Manual, EN 2021-05, D301315 Iss 1... -
Page 33: Burner Cleaning And Replacement
5. To remove unscrew the 8mm nuts. Gasket 4 off 8mm nuts PREEVA Neos 10-70 combustion fan Reznor, PREEVA Neos, Installation Manual, EN 2021-05, D301315 Iss 1 Page No 33 of 52... -
Page 34: Burner Chamber / Tube Insulation Check And Replacement
5. Unless wetted, such waste may be dusty be replaced. and should be properly sealed in containers for disposal. 6. The Material Safety Data Sheet is available from the appliance manufacturer. Page No 34 of 52 Reznor, PREEVA Neos, Installation Manual, EN 2021-05, D301315 Iss 1... - Page 35 16. Replace the burner gasket if necessary. 17. Refit in reverse order, then follow start up and commissioning procedure. Reznor, PREEVA Neos, Installation Manual, EN 2021-05, D301315 Iss 1 Page No 35 of 52...
-
Page 36: Cleaning And Replacement Of Burner Probes
3.5±0.5 mm gap between probes Angle of probe = 20° 4. Pull probe mounting bracket away from the burner chamber to extract the burner probes. Page No 36 of 52 Reznor, PREEVA Neos, Installation Manual, EN 2021-05, D301315 Iss 1... -
Page 37: Replacement Of Lc1 And Lc3 Safety Thermostats
LC1 wiring connections Silicon sealant around mounting bracket LC3 wiring connections 9. Follow start up and commissioning procedure. Reznor, PREEVA Neos, Installation Manual, EN 2021-05, D301315 Iss 1 Page No 37 of 52... -
Page 38: Replacement Of Ignition Controller
Use care when terminal. cleaning the fan blades to prevent causing 4. Follow start up and commissioning misalignment or imbalance. procedure. Page No 38 of 52 Reznor, PREEVA Neos, Installation Manual, EN 2021-05, D301315 Iss 1... -
Page 39: Unit Operation
The combustion and correct operation of the appliance should be verified as a part of the normal service routine. Follow the steps in the start up and commissioning procedures to verify. Reznor, PREEVA Neos, Installation Manual, EN 2021-05, D301315 Iss 1 Page No 39 of 52... -
Page 40: Fault Finding
Fault Finding Page No 40 of 52 Reznor, PREEVA Neos, Installation Manual, EN 2021-05, D301315 Iss 1... - Page 41 Reznor, PREEVA Neos, Installation Manual, EN 2021-05, D301315 Iss 1 Page No 41 of 52...
-
Page 42: Spare Parts
Circuit board spacer (4 required) 06-25940-2710 Lockout reset switch 60-61998 LED lamp 60-61997 Green lamp 28-50-038 Relay 28-25-029 Burner wiring harness 1031792 Premix burner 1030630 Premix burner 1030352 Page No 42 of 52 Reznor, PREEVA Neos, Installation Manual, 2021-05, D301315 Iss 1... -
Page 43: Optional Air Filters
60-52007-01 Optional air filters PREEVA Neos indoor and outdoor units have an optional facility for air intake filters. Standard racks are provided to accommodate 50mm nominal thickness filter elements. Unless otherwise specified, filters supplied will be expendable type synthetic pleated elements. The sizes and quantities required to suit individual appliances are listed in the table below. -
Page 44: Erp Table - Internal Units - G20
ErP Table - Internal Units - G20 Page No 44 of 52 Reznor, PREEVA Neos, Installation Manual, EN 2021-05, D301315 Iss 1... -
Page 45: Erp Table - Internal Units - G25
ErP Table - Internal Units - G25 Reznor, PREEVA Neos, Installation Manual, EN 2021-05, D301315 Iss 1 Page No 45 of 52... -
Page 46: Erp Table - Internal Units - G25.3
ErP Table - Internal Units - G25.3 Page No 46 of 52 Reznor, PREEVA Neos, Installation Manual, EN 2021-05, D301315 Iss 1... -
Page 47: Erp Table - External Units - G20
ErP Table - External Units - G20 Reznor, PREEVA Neos, Installation Manual, EN 2021-05, D301315 Iss 1 Page No 47 of 52... -
Page 48: Erp Table - External Units - G25
ErP Table - External Units - G25 Page No 48 of 52 Reznor, PREEVA Neos, Installation Manual, EN 2021-05, D301315 Iss 1... -
Page 49: Erp Table - External Units - G25.3
ErP Table - External Units - G25.3 Reznor, PREEVA Neos, Installation Manual, EN 2021-05, D301315 Iss 1 Page No 49 of 52... - Page 50 Notes...
- Page 51 Notes...
- Page 52 Tel +44 (0)1384 489700 Fax +44 (0)1384 489707 reznorsales@nortek.com www.reznor.eu Nortek Global HVAC is a registered trademark of Nortek Global HVAC limited. Because of the continuous product innovation, Nortek Global HVAC reserves the right to change product specification without due notice.