Hydronic M-II (Water Heater) - Espar

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Installation Procedures Electrical Connections Caution: To avoid potential short circuit damage during installation, insert main fuse into the power harness after all electrical connections are complete. A) Power Harness................................................................... Note: Wire must be inserted into fuse holder prior to terminating. B) Switch Harness.................................................................. C) Fuel Metering Pump Harness........................................... 14 - 7 Day Timer + A • 2 core harness (red, brown). • Connect red wire to fuse link and terminal. • Attach ring terminal to vehicle battery (+). • Connect brown wire to vehicle battery (-) using ring terminal provided. • Insert fuse. (15A-24V, 20A-12V) • 4 core harness (red, brown, yellow, blue/white) • Run to location of switch. Make terminal connections at switch. Espar has different available switches. See switch instructions for more information. • 2 core harness (green, green). • Fuel Metering Pump Harness is pre-connected when box is provided with pump pre-mounted. • If mounted externally, connect wires to fuel metering pump using connector and terminals supplied, with the heater - (no polarity required). B C 7 Day Timer switch harness Shown is a Hydronic MII boxed version, 12 volt with Standard - Power, Switch, Fuel Metering Pump harnesses and optional 7 day timer. Other timers or switch options are available. Easy Start Mini Timer Programable Push and Timer Pull Switch I AUTO O RUN P P M 1 2 3 4 5 6 7 P 1...7 h m R Note: All harnesses should be cut to length. All exposed electrical connections should be coated with protective grease.
Installation Procedures Exhaust Connection A 30 mm flexible tube exhaust pipe with a length of 1m long is supplied with the kit for the exhaust. An exhaust clamp is needed to secure the exhaust to the the heater. The exhaust hose cannot be any longer than 1.8 m. Connect the exhaust as follows: • Connect the exhaust pipe to the exhaust port on the heater and attach with clamp provided. Feed the exhaust pipe through the silicone (white) grommet on the bottom of the box. • Run exhaust to an open area to the rear or side of the vehicle so that fumes can not build up and enter the passenger compartment or the heater combustion air intake. • Install exhaust pipe with a slight slope or drill a small hole in the lowest point to allow water to run off. Any restriction in exhaust will cause operational problems. • Route the exhaust pipe from the heater using holders provided. Caution: Run exhaust so that it cannot be plugged by dirt, water or snow. Ensure the outlet does not face into the vehicle slip stream. Note: 1. Exhaust hose cannot be any longer than 2m (80”) 2. Minimum length 0.2 m (8”) 3. Air intake silencer always needed. ATTENTION: Refer to pg. #3 for High altitude capabilities. Route exhaust beyond the skirt of the cab and outside of the frame area. Route exhaust so that the exhaust fumes cannot enter the passenger compartment. Failure to comply with this warning could result in Asphyxiation. Holding clamps Intake Connection Combustion air must be drawn in from the outside of vehicle. The combustion air opening must be kept free at all times. • Connect the air intake pipe to the intake port on the heater and secure with clamp provided. Caution: Do not install the intake opening facing the vehicle slipstream. Ensure that the opening cannot become clogged with dirt or snow and that any water entering the intake can drain away. Flexible Exhaust & Air intake hose cannot be any longer than Max 2m (80”) Warning: Asphyxiation Hazard Warning: Fire Hazard Exhaust & Intake Clamps P/N 25 1786 80 02 00 Air Intake silencer Always needed End Sleeve The exhaust is hot, keep a minimum of 5cm (2”) clearance from any heat sensitive material. Failure to comply with this warning could result in fire and serious injury. 15
Page 1 and 2: * Hydronic M-II (Water Heater)
Page 3 and 4: Introduction
Page 5 and 6: Introduction Technical data Heater
Page 7 and 8: Introduction Heater Components 1 2
Page 9 and 10: Installation Procedures Principal D
Page 11 and 12: Installation Procedures • The exh
Page 13: Installation Procedures Fuel Meteri
Page 17 and 18: Installation Procedures Using the H
Page 19 and 20: Notes: 19
Page 21 and 22: Heater Operation Heater Wiring The
Page 23 and 24: Heater Operation Hydronic M-II, Wir
Page 25 and 26: Maintenance, Troubleshooting & Repa
Page 49 and 50: Heater Components Hydronic M-II - 1
Page 51 and 52: Heater Components Hydronic M-II - 1
Page 53: Espar Products, Inc.

Hydronic M-II (Water Heater) - Espar

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