Truma Combi Service Handbook

Description & Technical Data
With more than 20 years of reliable service in Europe and Australia, Truma Combi furnaces are
the most energy-efficient and lightest heating systems on the market. Truma Combi heaters
combine two functions in one appliance. They warm the living area and heat water in the
integrated stainless steel tank. Depending on the model, Truma Combi heaters can be used in
gas, electric, or mixed mode.
Fuel: LP gas (propane only)
Inlet pressure: 11-13”WC. (27.4-32.4mBar)
Manifold pressure: 10”WC (24.9mBar)
Duct static pressure: minimum of 0.00”WC (0.0mBar)
maximum of 0.65”WC (1.6mBar)
Temperature rise: <150⁰F (83⁰C)
Energy Input Rate / Gas Consumption
LP gas mode Operating Level 1 Operating Level 2 Operating Level 3
Combi eco 7,500BTU/hr (2.2kW) 14,300BTU/hr (4.2kW) --
Combi eco plus 5.3oz/h (150g/h) 10oz/h (290g/h)
Combi comfort 7,500BTU/hr (2.2kW) 14,300BTU/hr (4.2kW) 20,400BTU/hr (6kW)
Combi comfort plus 5.3oz/h (150g/h) 10oz/h (290g/h) 14oz/hr (410g/h(
Electric mode
Combi eco plus 850W 1,700W --
Combi comfort plus
Mixed mode LP gas + electric
Combi eco plus (max) 7,500 BTU/h (2.2kW) + 1,700W
Combi comfort plus (max) 14,300 BTU/h (4.2kW) + 1,700W
Power Supply
Power consumption at 12VDC (DC < 1Vpp)
Combi eco transient: max. 6.1A (average power consumption: approx. 1.6A)
Combi eco plus transient: max. 6.1A (average power consumption: approx. 1.6A)
Combi comfort transient: max. 6.1A (average power consumption: approx. 1.8A)
Combi comfort plus transient: max. 6.1A (average power consumption: approx. 1.8A)
Power consumption at 120VAC/60HZ (line connection or sine wave generator)
Operating Level 1 Operating Level 2 Operating Level 3
Combi eco plus 7.1A 14.2A --
Combi comfort plus
Hot Water System
Capacity of water container: 2.64gal (10 liters)
Water heating time from approx. 23 minutes in hot water mode (measured according to
59⁰F (15⁰C) to 140⁰F (60⁰C): (EN 15033)
Water inlet pressure: max. 40.6psi (2.8bar)
System operating pressure: max. 65.25psi (4.5bar)
Shipping weight (without water and without peripheral equipment)
Combi eco 35.1lbs (15.9kg)
Combi comfort
Combi eco plus 37.0lbs (16.8kg)
Combi comfort plus

Truma Combi Specifications

General

Type	Combination heater
Fuel	LPG
Water capacity	10 liters
Control	Digital control panel
Safety Features	Overheat protection, flame monitoring
Efficiency	Up to 90%