If there are instructions, manuals, etc you need, but don't see them here, please contact us and we will do our best to find the answers for you.

Refrigeration manuals and operating instructions

Frigoboat Installation and Instruction Manual
Standard manual explaining how to install a Frigoboat refrigeration system and giving basic instruction with troubleshooting pointers. Updated periodically as new information is received from the field by users and owners.

Bending Instructions for Frigoboat Evaporators
How to bend a flat aluminum evaporator plate into a "U" or "L" shape to custom fit into an ice box. Also available in Section 6 of the Frigoboat Installation and Instruction Manual above.

Diagnostic LED Danfoss/Secop Compressor Fault Code Explanation
Diagnostic LED tool, when compressor stops for fault reason, will flash 1-2-3-4 or 5 times to indicate which fault occurred.

Merlin II mini Smart Speed Controller
The Merlin II mini smart speed control,with LED fault indicator light, installation and operating instructions.

Original Merlin Smart Speed Controller - Instructions obsolete
The original Merlin mini smart speed control installation and operating instructions.

Smart Speed Control - General Operating Instructions obsolete
The original Smart Speed Control (SSC) installation and operating instructions. This excellent product is no longer available. The replacement product, Merlin II uses the same performance algorithms, but does not have the mounted display. See wiring diagram below.

Thermostat manuals and operating instructions

Coastal MK3 Digital Thermostat Instructions
Installation and operation instructions for the Coastal MK3 digital thermostat

Coastal MK II Digital Thermostat Instructions
Installation and operation instructions for the Coastal MKII digital thermostat. discontinued

Carel IR-V Thermostat - Wiring Operation and Adjustment
Carel digital thermostat installation and operating instructions, specifcally as used on Frigoboat systems.

Guardian Temperature Control Adjustment and Operations 
Installation and operation instructions for the Guardian compressor speed controller with digital thermostat.  discontinued

Wiring Diagrams

AC-DC Controller Wiring (Frigoboat p/n E52530, Danfoss p/n 101N0500, -510)

Power Converter 12V Wiring Diagram discontinued

Power Converter 24V Wiring Diagram  discontinued

Guardian Temperature and Speed Control Device, model with 5-wires discontinued

Guardian Temperature and Speed Control Device, model with 7-wires discontinued

Thermostat to Compressor's Control Module, wiring diagram

Replacing SSC (Smart Speed Control) with Merlin II, wiring diagram

SSC (Smart Speed Control) wiring diagram: Mechanical, Carel, 3-button Coastal thermostats

SSC (Smart Speed Control) wiring diagram: Mechanical, Carel, 5-button Coastal thermostats

W35/W50 Pump and Thermostat Wiring Directions, with pump relay

W35/W50 Pump and Thermostat Wiring Directions, with pump relay, two-three systems, one pump

Installation Instructions for Add-ons

Adding Keel-Cooler to Frigoboat Air or Water Cooled System

Adding Air-Only condenser to Frigoboat K35/50 Keel-Cooled System

Adding Air-Only condenser to Frigoboat W35-W50 pumped Water-Cooled System

Lid Kit for 340H or 250H Frigoboat Evaporator, Installation Instructions

Spillover Fan with Digital Thermostat Installation Instructions

Spillover Fan, Mechancal Thermostat, Installation Instructions