Enviro S50 Owner's Manual
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Enviro S50 Owner's Manual

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S50/S50-820
F R E E S T A N D I N G G A S F I R E P L A C E
OWNER'S MANUAL
WARNING:
If the information in this manual is not followed exactly, a
fire or explosion may result causing property damage, personal injury
or loss of life. Installation and service must be performed by a qualified
installer, service agency or the gas supplier.
C#4001609
CERTIFIED TO/CERTIFIÉ AUX: ANSI Z21.88 / CSA2.33 / CSA 2.17
50-4194
1
Version Française: www.enviro.com/fr.html

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  • Page 1 Installation and service must be performed by a qualified installer, service agency or the gas supplier. C#4001609 CERTIFIED TO/CERTIFIÉ AUX: ANSI Z21.88 / CSA2.33 / CSA 2.17 50-4194 Version Française: www.enviro.com/fr.html...

  • Page 2: Safety Precautions

    Safety Precautions WARNING: FIRE OR EXPLOSION HAZARD Failure to follow safety warnings exactly could result in serious injury, death, or property damage. - Do not store or use gasoline or other flammable vapors and liquids in the vicinity of this or any other appliance. - WHAT TO DO IF YOU SMELL GAS •...
  • Page 3 NEVER ALLOW CHILDREN shut. TO TOUCH GLASS. • If the S50 unit is pulled out of its installation, and the vent- A barrier designed to reduce the risk of burns from the air intake system is disconnected for any reason, ensure that...

  • Page 4: Table Of Contents

    Table of Contents Safety Precautions ���������������������������������������������������������������������������������������������������������������������������2 Table of Contents ������������������������������������������������������������������������������������������������������������������������������4 Codes And Approvals ������������������������������������������������������������������������������������������������������������������������6 Specifications �����������������������������������������������������������������������������������������������������������������������������������7 Dimensions: ............................7 Rating Label & Lighting Instructions Location...................7 Operating Instructions ���������������������������������������������������������������������������������������������������������������������8 Lighting and Turning Off Instructions .......................8 Pilot Light ............................10 Air Shutter ............................10 Control Panel and Operation .
  • Page 5 Table of Contents Rear Vent Conversion ........................... 43 Pedestal Installation ..........................46 Relocating Gas/Electrical ........................48 Mobile Home Installation: ........................51 Secondary Installation ��������������������������������������������������������������������������������������������������������������������52 Log Set Installation ..........................52 Media Installation ..........................54 Trouble Shooting ����������������������������������������������������������������������������������������������������������������������������55 Parts List �����������������������������������������������������������������������������������������������������������������������������������������56 Wiring Schematic ����������������������������������������������������������������������������������������������������������������������������58 Installation Data Sheet �������������������������������������������������������������������������������������������������������������������60...

  • Page 6: Codes And Approvals

    After the unit has gone through the first burn, turn the unit off including the pilot, let the unit get cold then remove the glass door and clean it with a good gas fireplace glass cleaner, available at your local ENVIRO dealer.

  • Page 7: Specifications

    GAS & 8 " CONTROL POWER PANEL *GAS & POWER CAN 10" RUN UP PEDESTAL Figure 1: S50 Dimensions & L ating abeL ighting nstRuctions ocation The rating label and lighting instruction booklet is located inside the unit. The fireplace door frame must be removed for access.

  • Page 8: Operating Instructions

    “ON” position. Flip the burner switch to “ON” then turn the “HI/LOW” knob to the desired setting. 10. Close the front control panel. 11. Turn on all electric power to the appliance. 12. Set thermostat to desired setting. C-16301 Figure 3: S50 Lighting Instruction Labels...
  • Page 9 “ON” position. Flip the burner switch to “ON” then turn the “HI/LOW” knob to the desired setting. 9. Close the front control panel. 10. Turn on all electric power to the appliance. 11. Set thermostat to desired setting. C-16299 Figure 4: S50-820 Lighting Instruction Labels...

  • Page 10: Pilot Light

    When the pilot flame ignites, continue holding down the control knob for approximately 30 seconds then release. On S50 models equipped with 821 valve, hold control know down until an audible “beep’ is heard then release.

  • Page 11: Control Panel And Operation

    Operating Instructions ontRoL aneL anD PeRation The gas valve and control switches are located behind the door frame at the bottom edge of the stove (see Figure 7). The controls can be accessed by reaching under the door frame without needing to remove it (see Figure 8 and Figure 9).

  • Page 12: Normal Sounds During Operation

    Then remove the glass and clean it with a good gas fireplace glass cleaner, available at your local Enviro dealer. See page 15 and page 16 for instructions on removing fireplace door and glass.

  • Page 13: Lifting The Top Plate

    Maintenance And Service ifting the Late The top plate of the unit is attached to a pair of hinges and tension cable that will support its weight when lifted allowing access for servicing. Lift the top plate upwards until the hinge arms can both be pulled com- pletely outward simultaneously (see Figure 10 and 11 below).

  • Page 14: Safety Screen

    Maintenance And Service afety cReen The safety screen is attached by two hooks on the top edge of the unit (see Figure 12). Lift top plate to gain safety screen lift clearnace (see instruction previous page); gently and carefully lift the screen up and away from the unit (see Figure 13).

  • Page 15: Removing The Door Frame/Skirt

    Maintenance And Service The safety screen mounting position can be adjusted slighlty to maining paralellism with the fireplace body lines. The outer standoffs on the lower screen can be repositioned by loosening the two T20 screws and adjusting via slots, retighten screws. Figure 15: Safety Screen Adjustments emoving the Rame...

  • Page 16: Removing The Glass

    Maintenance And Service emoving the Ront kiRt Remove: After the door frame is removed, the skirt can be removed to gain component access by lifting up at either end to disengage the hooks and brought out. Mounting: Place the skirt hooks into their respective chassis slots and the center stud support rest in the finger groove.

  • Page 17: Removing The Rear Chassis

    Maintenance And Service emoving the hassis 1. Remove the door frame and skirt (see r emoVing section on page 15). rame kirt 2. Remove the venturi knob located on the back of the unit (see Figure 6). It can unscrewed by hand and put aside.

  • Page 18: Top Light Replacement

    The S50 has an optional fan kit that can be added to the unit (50-4174). Disconnect power cord proceding. To replace the fan, first remove the door frame and skirt (refer to page 15 and 16 for details). On the left side of the unit there is a cavity that allows access to the fan (see Figure 25).

  • Page 19: Replacing Trim Parts

    Reconnect power and test fan. ePLacing aRts All powder coated trim pieces on the S50 can be removed and replaced if damaged. This section will go over how to remove these pieces from the unit to then be replaced. ooks First, remove the door frame from the unit (refer to the section on page 15).
  • Page 20 Maintenance And Service Ront kiRt First, remove the door frame from the unit (refer to the r section on page emoVing the rame kirt 15). The front skirt is hooked onto the rear chassis using two hooks on each side of the skirt. Simply lift the skirt up and away from the unit.

  • Page 21: Removing Top Plate

    Maintenance And Service Late ascia First, remove the top plate from the unit (re- fer to the r section on emoVing the late page 21). Remove the four (4) nuts retaining the fac- sia band using a 3/32” (or 9mm) socket (see Figure 31).

  • Page 22: Burner Removal

    Maintenance And Service etaching the ension abLe The top plate support system uses a tensioned safety cable to establish hinge stability. Should the top plate need to be removed, disconnect the cable retainer by removing the two T20 screws (see Figure 33). WARNING: Always ensure tensioned safety cable is attached to the top plate.

  • Page 23: Fuel Conversion

    The installation is not proper or complete until the operation of the converted appliance is checked as specified in the manufacturer’s instructions supplied with the kit. Kit Parts List for all S50 models: 1 - Orifice (NG: #37) or (LP: #53) 1 - Conversion label...
  • Page 24 Maintenance And Service 2. Remove the door frame and glass as shown in their respective sections on page 15 and page 16. 3. Carefully remove the log set. 4. Remove the burner as shown in the B section on page 22. urner emoVal 5.
  • Page 25 (page 38). Confirm the inlet and manifold pressures are within the acceptable ranges as directed in the g section on page 41. If the S50 has been installed at onnection an altitude higher than 2000ft (610m) it is required to de-rate the unit accordingly: In the USA: The appliance may be installed at higher altitudes.

  • Page 26: Initial Installation

    Take care not to strike the finish when unpackaging the S50. Damage created by a utility knife (or the like) during unpackaging will not be covered under warranty.

  • Page 27: Clearance To Combustibles

    Initial Installation QUALIFIED INSTALLERS ONLY LeaRance to ombustibLes Warning: Clearances must be sufficient to allow for maintenance and service. A. Side Wall to Edge of unit: 12” [30.5 cm] B. Side Wall to Center of unit: 22” [55.9 cm] C. Back Wall to Edge of unit: 3”...

  • Page 28: Direct Vent

    The vent length for the S50 must be between 21” (53.3 cm) and 40 ft (12.2 m). This model is vented with co-axial 4” intake, 6 5/8” exhaust aluminum or stainless steel approved rigid vent leading into a vertical or horizontal termination cap.
  • Page 29 Initial Installation QUALIFIED INSTALLERS ONLY WARNING: Do not mix parts from different vent manufacturers’ systems. EXCEPTION TO WARNING: This product has been evaluated by Intertek for using a DirectVent Pro starting collar in conjunction with other venting systems. Use of this system with the DirectVent Pro starting collar is deemed acceptable and does not affect the Intertek listing of the appliance.

  • Page 30: Vent Termination Restrictions

    Initial Installation QUALIFIED INSTALLERS ONLY eRmination estRictions Fixed Closed Fixed Openable Closed Openable Termination Cap Air Supply Inlet Restriction Zone Gas Meter (Termination not allowed) Figure 47: Vent Termination Restrictions, refer to Table 5� Table 5: Vent termination clearances� Letter Canadian Installation US Installation Description...

  • Page 31: Exhaust Restrictor Settings

    The S50 has an internal exhaust restrictor that can be adjusted externally. Depending on the venting con- figuration this may need to be adjusted. The restrictor dial is accessed from the top of the fireplace, below the top plate (refer to the section “Lifting the Top Plate” on page 13 for instructions). Using a 7/16” socket, rotate the restrictor CLOCKWISE until the required setting is in-line with the finger catch.

  • Page 32: Minimum Top Vent Configurations

    Initial Installation QUALIFIED INSTALLERS ONLY inimum onfiguRations Refer to Table 6 and Figure 49 below for the minimum allowable top venting setup for the S50. Table 6: Minimum Top Vent Configurations “A” [Vertical Rise] “B” [Horizontal Run] Termination Type 12” Max Out Straight Termination 12”...

  • Page 33: Top Vent Configuration - Natural Gas (Ng)

    Initial Installation QUALIFIED INSTALLERS ONLY (ng) onfiguRation atuRaL NG Top Vent Con gurations 40’ The following charts show the range (12.19m) of venting options available for top vent configurations using either vertical or horizontal terminations in conjunction with 0 - 3 90° elbows in the vertical plane.

  • Page 34: Top Vent Configuration - Propane (Lp)

    Initial Installation QUALIFIED INSTALLERS ONLY (LP) onfiguRation RoPane LP Top Vent Con gurations 40’ (12.19m) 30’ (9.14m) 20’ (6.10m) 10’ (3.05m) 2’ (1.22m) 2’ 20’ 10’ 15’ (1.22m) (6.10m) (3.05m) (4.57m) See Minimum Venting Section for Details Figure 51: Top Vent Configuration Diagram - LP...

  • Page 35: Minimum Rear Vent Configurations

    Initial Installation QUALIFIED INSTALLERS ONLY inimum onfiguRations Refer to Table 7 and Figure 52 below for the minimum allowable rear venting setup for the S50. Table 7: Minimum Rear Vent Configurations “A” [Horizontal Run] Termination Type 18” [Max] 14” Snorkel up to 36”...

  • Page 36: Rear Vent - Corner Installation

    Initial Installation QUALIFIED INSTALLERS ONLY oRneR nstaLLation ATTENTION When performing an LP Rear Vent Corner Install with 45° Elbow, a DURAVENT 36” SNORKEL MUST BE USED. No other brand venting can be used for LP corner installations. Rear vent corner installs have the same vent run restrictions as a typical rear vent installations. Refer to Table 7 in the previous section for details.

  • Page 37: Horizontal Termination

    Initial Installation QUALIFIED INSTALLERS ONLY oRizontaL eRmination NOTES: 1. Horizontal pipes must not be level. For every 12 inches (305 mm) of horizontal travel (away from the stove), there should be at least ¼ inch (6.4 mm) of vertical travel. Never allow the vent to run downward, as this could cause high temperatures or even present the possibility of a fire.

  • Page 38: Vertical Termination

    Initial Installation QUALIFIED INSTALLERS ONLY Step 4. With the hole now framed, the wall thimble installed, and the pipe extending into the wall, proceed to the outside. Attach the termination to the pipe using RTV and Mil-Pac or Rutland No 78 Stove and Gasket Cement to seal joints.
  • Page 39 Initial Installation QUALIFIED INSTALLERS ONLY STEP 5� Cut hole in the roof centered on the small hole placed in the roof from Step 2. The hole should be of sufficient size to meet minimum requirements for Clearance to Combustibles, as specified. Continue to assemble lengths of pipe and elbows necessary to reach from the ceiling support box up through the roof line.
  • Page 40 Initial Installation QUALIFIED INSTALLERS ONLY NOTES: (1) If an offset is necessary in the attic to avoid obstructions, it is important to support the vent pipe every 3 feet (914 mm), to avoid excessive stress on the elbows, and possible separation. Wall straps are available for this purpose (see Figure 57).

  • Page 41: Gas Line Connection

    Initial Installation QUALIFIED INSTALLERS ONLY onnection WARNING: Only persons licensed to work with gas piping may make the necessary gas connections to this appliance. onnection This stove is equipped with a certified flexible pipe located on the left side of the unit terminating in a 3/8” female NPT fitting.

  • Page 42: Electrical Requirements

    National Electrical Code, ANSI/NFPA 70, or the Canadian Electrical Code, CAN/ CSA C22�1� The S50 does not require power to operate the flame. Howev- er, a 120V 15A circuit is required to operate included top light and convection fan (optional).

  • Page 43: Rear Vent Conversion

    QUALIFIED INSTALLERS ONLY onveRsion The S50 has the option to be top or rear vented. By default, it comes configured as top vented from the factory. This can be changed by following these steps: 1. Remove the top plate from the unit (see section r on page 21).
  • Page 44 Initial Installation QUALIFIED INSTALLERS ONLY 8. Remove the exhaust spigot from the top of the unit by removing the four (4) T20 screws (see Figure 65). Be deli- cate with the gasket, you will be reusing this. 9. Remove the outer and inner block-off plates from the back of the unit and attach them to the top of the unit where the exhaust spigot and vent collar were attached (see Figure 66).
  • Page 45 Initial Installation QUALIFIED INSTALLERS ONLY 11. Attach the vent adapter over top of the exhaust spigot (see Figure 68). 12. Remove the punchout from the rear chassis using a sizeable hammer (see Figure 69). Place a cloth down around the perimeter to prevent damage to the chassis in case you accidently strike the painted surface.

  • Page 46: Pedestal Installation

    Initial Installation QUALIFIED INSTALLERS ONLY eDestaL nstaLLation The pedestal MUST be anchored to the floor. *Note: If planning to reroute the electrical and gas connections through the pedestal, complete the steps in section R eLocating LectRicaL on page 48 before proceding. The pedestal comes packaged with rigid foam to help secure and cushion it during transportation.
  • Page 47 Initial Installation QUALIFIED INSTALLERS ONLY The pole pedestal comes with an anchor Front of Unit plate to help secure it to the floor (see Figure 75 for geometry and orientation). To install: • Mark desired center location for the unit on the floor and align with crosshair on the anchor.

  • Page 48: Relocating Gas/Electrical

    Initial Installation QUALIFIED INSTALLERS ONLY eLocating LectRicaL By default, the electrical and gas connections are found at the back of the unit. There is an option to reroute the gas and electrical connections through the pedestal for a more concealed look. The conversion must be done before pedestal installa- tion.
  • Page 49 Initial Installation QUALIFIED INSTALLERS ONLY eLocating onnection 1. Disconnect the two (2) T20 screws securing the ball valve plate (see Figure 82). 2. Disconnect the four (4) T20 screws securing the ball valve. 3. Loosen off ball valve jam screw and reattach ball valve cradle onto the relocation plate (included in the manual bag, refer to Figure 84 for proper geometry and orien- tation).
  • Page 50 Initial Installation QUALIFIED INSTALLERS ONLY eRouting LectRicaL onnections eDestaL The electrical and gas line conduit can run stright up the pole from the floor below. Alternatively you could run them through the channel at the rear of the pedestal base (see Figure 87). Figure 87: Pole Pedestal Gas &...

  • Page 51: Mobile Home Installation

    Initial Installation QUALIFIED INSTALLERS ONLY Figure 90: Wood Pedestal Gas & Electrical Rerouting obiLe nstaLLation All S50 models can be installed in a mobile home and must be securely fastened to the floor as directed below: Pedestal Anchor (Required) Flooring Steel Frame ”...

  • Page 52: Secondary Installation

    Secondary Installation nstaLLation Prior to setting up the log set, remove the door frame and glass from the unit. Refer to their respective sections on page 15 and page 16 for detailed instructions. STEP 1: Place burner media on burner. Use either vermiculite or ember wool;...
  • Page 53 Secondary Installation STEP 6: Place Log 6 atop the flat surface of Log 5; the base should contact the firebox edge. See Figure 96. Figure 96: Step 6 - Log 6 STEP 7: Place the narrow notch underneath Log 7 into the groove on Log 4.

  • Page 54: Media Installation

    Secondary Installation Figure 100: Proper Log Setup/Burn eDia nstaLLation To install media into your unit, perform the following steps: 1. Remove the door frame (refer to section r on page 15). emoVing the rame kirt 2. Remove the glass (refer to section r on page 16).

  • Page 55: Trouble Shooting

    • The pilot has been in operation for 7 continuous days pilot wandering). without main burner operation. Turn fireplace ON to reset (Does not apply to S50-820) pilot timer. Problem with thermocouple • Check polarity of thermopile is correct if charge time is circuit.

  • Page 56: Parts List

    50-4079 S50 Safety Screen 50-4141 S50 River Rock Set with Twigs 50-3838 S50 Traditional Log Set 50-4069 S50 Birch Log Set 50-4070 S50 Diamond Glass Media 50-4071 S50 Nova Circulation Fan Kit - 70 CFM 50-4174 S50 Owner’s Manual 50-4194...
  • Page 57 Parts List Figure 102: Parts List Diagram...

  • Page 58: Wiring Schematic

    Wiring Schematic Caution: Label all wires prior to disconnection when servicing controls. Wiring errors can cause improper and dangerous operation. Verify proper operation after servicing. GREY BLUE WHITE WHITE WHITE WHITE GREEN BLACK...
  • Page 59 Sherwood Industries Ltd. (“Sherwood”) hereby warrants, subject to the terms and conditions herein set forth, this product against defects in material and workmanship An expanded list of exclusions is available at www.enviro.com/help/warranty.html during the specified warranty period starting from the date of original purchase at retail.

  • Page 60: Installation Data Sheet

    _________________________________________ _________________________________________ NATURAL GAS (NAT) PROPANE(LPG) _________________________________________ INLET GAS PRESSURE:_________in wc PHONE:___________________________________ MAIN BURNER ORIFICE:__________# DMS PILOT ORIFICE #_________OR________in diam. INSTALLER’S SIGNATURE: _________________________________________ MANUFACTURED BY: SHERWOOD INDUSTRIES LTD. 6782 OLDFIELD RD. SAANICHTON, BC, CANADA V8M 2A3 www.enviro.com Winter 2021 C-16395...

This manual is also suitable for:

S50-820

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