Grundfos COMFORT Circulator Pumps (50/60 Hz)

This document provides detailed information on the Grundfos COMFORT series of circulator pumps.

1. Product Description

The Grundfos COMFORT circulator pumps are designed for efficient circulation of liquids in various systems.

Type Key

The type key helps identify specific pump models:

Outside USA Example: COMFORT 15-14 BXU PM DACH

Code	Explanation	Designation
COMFORT 15-14	Pump type
B	Brass pump housing
M	Motor (pump head only)	Options
X	Integrated isolating valve and non-return valve
Length 140 mm / G 1
DT	Digital Timer	Features
U	Digital Uhr (DACH only)
A	AUTOADAPT
PM	Permanent magnet	International
GB	Great Britain	Country
DACH	Germany, Austria, Switzerland
CN	China

USA Example: COMFORT 10-16 DT PM BU/LC

Code	Designation
COMFORT 10-16	Pump type
Basic
T	Temperature control	Features
A	AUTOADAPT
DT	Digital Timer
PM	Permanent magnet
B5	1/2" internal sweat, Brass	Connection
BN5	1/2" NPT, Brass
BU	1 1/4" NPSM with integrated isolating valve and non-return valve, Brass
LC	Line cord

Approvals

The pumps comply with various international safety and quality standards.

European Approvals: Marked with VDE and GS certifications, indicating safety and quality standards.
US Approvals: Certified by UL. Also recognized as a Drinking water system component for NSF/ANSI 61 and NSF/ANSI 372 compliance.

Applications

Grundfos COMFORT circulator pumps are designed for:

Domestic hot-water systems in single- and two-family houses.
Small heating systems.
Cooling and air-conditioning systems.

The pumps are suitable for both open and closed systems and must be installed indoors.

Domestic Hot-Water Systems Diagram Description

Figure 3 illustrates a single-loop system. Figure 4 shows a branched system. Figure 5 depicts a domestic hot-water system with a hot-water storage tank, highlighting the circulation of drinking water, particularly recommending brass pump housings for systems with storage tanks.

Performance Range

The performance range indicates the pump's head (H) and flow rate (Q) capabilities.

Figure 6 (Outside USA): Shows performance curves for COMFORT 15-14 B, BA, BDT and COMFORT 15-14 BX, BXA, BXDT models operating at 50/60 Hz, 230 V. The graph plots Head (H) in meters and kPa against Flow Rate (Q) in m³/h and l/s.
Figure 7 (USA): Displays performance curves for COMFORT 10-16 models (e.g., 10-16 T, 10-16 BU) operating at 50/60 Hz, 115/230 V. The graph plots Head (H) in meters and feet against Flow Rate (Q) in US GPM and m³/h.

2. Operating Conditions

Pumped Liquids

The pumps are designed for:

Thin, clean, non-aggressive, and non-explosive liquids without solid particles or fibers.
Cooling liquids not containing mineral oil.
Domestic hot water.
Softened water.

The pump's hydraulic performance may be reduced with liquids of higher viscosity. For example, 50% glycol at 20°C (68°F) can reduce performance by approximately 15% due to increased viscosity.

Temperatures

Liquid Temperature Range: 2 to 95°C (36 to 203°F).
Operating Temperature Recommendation: Around 50°C (122°F) is recommended to minimize lime deposit buildup and be aware of legionella risk.
Ambient Temperature: Must be lower than the liquid temperature to prevent condensation and not exceed 40°C (104°F).

Pressures

System Pressure: Maximum system pressure is 1.0 MPa (10 bar / 145 psi) (PN 10).
Inlet Pressure: A minimum inlet pressure of 0.5 bar (7.3 psi) or 5m head is required at the pump inlet to prevent cavitation and bearing damage.

Pump Location

Pumps must be installed indoors in a non-aggressive and non-explosive atmosphere. Maximum relative humidity is 95%.

3. Functions

COMFORT with AUTOADAPT

Models like COMFORT BA PM and BXA PM feature:

AUTOADAPT mode
Temperature control mode
Continuous 100% mode

AUTOADAPT Mode

This function optimizes operating hours by learning user tapping patterns, ensuring comfort and saving energy. It reduces both electrical energy consumption of the pump and heat energy consumption of the hot-water system. The pump adapts over two weeks, initially operating in temperature mode.

Note: For heating systems with a thermostatic regulating valve, it is recommended to use a COMFORT pump without AUTOADAPT to avoid conflicting control systems. If AUTOADAPT is used, set the thermostatic valve to maximum to disable its regulation.

Control Function

The control function integrates:

Detection of hot-water consumption via a temperature sensor.
Event log function to record tapping events.
Pump control based on logged data and temperature hysteresis.

Disinfection and Flushing: The pump performs a weekly 15-minute disinfection cycle. It also performs a 15-minute flush if it has been switched off for eight hours.

Fault Indication

Defective External Temperature Sensor: If the red error indicator is on and turns off when switching to temperature control mode, the external sensor is likely defective. The pump defaults to temperature control mode.

Defective Internal Temperature Sensor: If the red error indicator remains on when switching to temperature control mode, the internal sensor is defective. The pump then uses the external sensor for temperature control.

Temperature Control Mode for AUTOADAPT (BA, BXA) Variants

Regulation is based on a calculated temperature range, aiming for maximum comfort and energy savings.

Figure 10 illustrates a COMFORT pump in a heat application. Figure 11 shows the temperature control mode, where the pump switches on and off based on preset start (Tstart) and stop (Tstop) temperatures determined by the sensors.

Temperature Control Mode for Temperature Control (T) Variants

The COMFORT T PM variant offers integrated temperature control. It switches the pump off at a preset temperature limit (Toff) and back on at another (Ton). These limits are set automatically. After initial setup or power loss, the pump runs an identification cycle to determine system temperatures and calculate Ton and Toff. This cycle repeats every 12 hours.

Ton = Tsys - 14°C (57°F)
Toff = Tsys - 7°C (44°F)

Continuous 100% Mode

The pump operates at full speed continuously without any regulation.

COMFORT with Digital Timer

BDT and BXDT PM models include a digital timer for customized operating periods to optimize comfort and energy savings. Default periods are 6:00-9:00, 11:00-13:00, and 16:00-21:00. Users can select default schedules or create custom ones.

Setting the Pump

Settings are made directly on the pump's operating panel. Quick guides and instructional videos are available via QR codes.

Operating Panel Description (Figure 12)

Pos.	Description
1	Arrow button for changing mode.
2	100% LED: Indicates continuous 100% mode.
3	Gear wheel LED: Lights up when time and operating periods can be set.
4	Actual time indicator: Each LED represents 30 minutes.
5	Timer LEDs: Indicate pump operating periods; each LED represents 30 minutes.
6	Change button: Toggles between actual time and timer LEDs.
7	OK button: Confirms, changes, or deletes settings.
8	Activated timer function LED: Indicates timer is active and periods are set.
9	Pump LED: Indicates the pump is operating.

Note: In case of power failure, the actual time LED (4) blinks, indicating the time setting may need adjustment.

4. Construction

Grundfos COMFORT PM circulator pumps feature various housing versions and lengths, often including integrated isolating and non-return valves. The motor can be separated from the pump housing for easier maintenance.

Key Characteristics

Parts in contact with the pumped liquid are hermetically separated from the stator by a stainless-steel spherical separator.
The bearing has no play and a single bearing point, resulting in very low friction, reduced power input, and noise.

Electrical Insulation

All Grundfos COMFORT PM models are double insulated (Protection Class II), eliminating the need for a protective earth connector. Figure 13 shows the Protection Class II symbol.

Motor

The motor is a single-phase, 12-pole, permanent-magnet type, compliant with EMC directives. It features a green indicator light when running and is impedance-protected and short-circuit-proof, requiring no additional motor protection. The terminal box is accessible with functional cable terminals, featuring a tight cable entry with relief. Enclosure class is IP44, and insulation class is F.

Voltages

Europe, UK, China: 1 x 230 V, 50/60 Hz
USA: 1 x 115/230 V, 50/60 Hz

Stator

The stator creates a magnetic field that directly drives the magnetic rotor, causing it to rotate. Axial magnetic field components stabilize the rotor.

Spherical Separator

This stainless-steel component hermetically seals the water-conducting part from the motor's electrical components without an additional seal. Figure 14 illustrates the spherical separator.

Bearing Pin and Bearing Ball

The stainless-steel bearing pin is laser-welded to the spherical separator and bearing ball. Figure 15 shows the bearing pin.

Rotor

The rotor is gimbal-mounted on the bearing ball via its own step bearing. Figure 16 shows the rotor.

Pump Housing

Designed for high hydraulic efficiency, converting impeller energy into pressure. Threads allow connection to standard pipe dimensions. Figure 17 shows pump housings with and without valves.

Union Nut

Ensures a tight connection between the motor and pump housing. Its thread type presses the seal ring evenly across the sealing face. Figure 19 shows the union nut.

Isolating Valve and Non-Return Valve

Types BX (Europe) and BU (USA) include a built-in isolating valve (isolates inlet side for maintenance) and a non-return valve (isolates outlet side during maintenance).

Seal Ring

A single seal ring between the motor and pump housing, made of hydrolysis and aging-resistant material for extended pump life. Figure 18 shows the seal ring.

Sectional Drawing

Figure 20 provides a sectional view of the COMFORT PM pump, with numbered components detailed in the Material Specification table.

Material Specification

Pos.	Component	Material	EN	AISI
1	Stator lamination	Steel
2	Stator windings	Copper wire and enamel
3	Stator housing	Aluminium/P66
8	Spherical separator	Stainless steel	1.4016	430
9	Rotor can, complete	Stainless steel/tungsten carbide	1.4571	316 Ti
10	Rotor, impeller	Stainless steel, EPDM, PPO, PFTE, graphite
11	Pump housing	Brass (CW617N)	CW617N
	A: Outside USA	Brass (ECOBRASS, CuZn21Si3P)
	B: USA
12	Terminal box cover	PC/ABS
13	PC board with diode	FR 4
14	Motor cover	PPO
17	Cable with plug
18	COMFORT plug (GB versions BA/BXA only)	PA66
21	Cable ring 1 (AUTOADAPT variant only)	PC/ABS
22	Cable ring 2 (AUTOADAPT variant only)	PC/ABS
23	Temperature sensor (AUTOADAPT variant only)
24	Insulation shells	EPP 55

5. Performance Curves

Curve Conditions

The performance curves are based on the following conditions:

Test Liquid: Airless water.
Measurement Temperature: 20°C (68°F).
Curves represent average values and are not guarantee curves. Individual measurements are required for specific minimum performance needs.
Kinematic Viscosity: The curves apply to a kinematic viscosity of 1 mm²/s (1 cSt).
Head to Pressure Conversion: Based on water density (ρ = 1000 kg/m³). For liquids with different densities, outlet pressure is proportional to density.

6. Data Sheets

Detailed specifications for various COMFORT pump models are provided below, including performance curves, electrical data, dimensions, connections, and weights.

COMFORT 15-14 B PM, 15-14 B PM DACH, 15-14 B PM CN, 15-14 B PM RU

Performance Curve Description

A performance curve graph is shown, plotting Head (H) in kPa and meters against Flow Rate (Q) in m³/h and l/s. The curve illustrates the pump's operating range.

Electrical Data

Voltage: 1 x 230 V, 50/60 Hz
P1 [W (Hp)]: 7
I1/1 [A]: 0.07

Dimensions and Specifications

Pump type	L1	H1	H2	H3	B1	B2	G	Net [kg]	Gross [kg]	Shipping volume [m³]
COMFORT 15-14 B PM	80	25	13.5	119	79.5	84	Rp 1/2	1.00	1.12	0.0026
COMFORT 15-14 B PM DACH
COMFORT 15-14 B PM CN
COMFORT 15-14 B PM RU

Connections and Other Specifications

Connections: Rp 1/2. Various fittings available (see page 36).
System Pressure: Max. 10 bar.
Liquid Temperature: 2-95 °C (TF 95).
IP Class: IP44.

COMFORT 15-14 BA PM, 15-14 BA PM DACH, 15-14 BA PM CN

Performance Curve Description

A performance curve graph is shown, plotting Head (H) in kPa and meters against Flow Rate (Q) in m³/h and l/s.

Electrical Data

Voltage: 1 x 230 V, 50/60 Hz
P1 [W (Hp)]: 7
I1/1 [A]: 0.07

Dimensions and Specifications

Pump type	L1	H1	H2	H3	B1	B2	G	Net [kg]	Gross [kg]	Shipping volume [m³]
COMFORT 15-14 BA PM	80	25	13.5	129	79.5	84	Rp 1/2	1.00	1.12	0.0026
COMFORT 15-14 BA PM DACH
COMFORT 15-14 BA PM CN

Connections and Other Specifications

Connections: Rp 1/2. Various fittings available (see page 36).
System Pressure: Max. 10 bar.
Liquid Temperature: 2-95 °C (TF 95).
IP Class: IP44.

COMFORT 15-14 BDT PM, 15-14 BU PM DACH, 15-14 BDT PM CN

Performance Curve Description

A performance curve graph is shown, plotting Head (H) in kPa and meters against Flow Rate (Q) in m³/h and l/s.

Electrical Data

Voltage: 1 x 230 V, 50/60 Hz
P1 [W]: 7
I1/1 [A]: 0.07

Dimensions and Specifications

Pump type	L1	H1	H2	H3	B1	B2	G	Net [kg]	Gross [kg]	Shipping volume [m³]
COMFORT 15-14 BDT PM	80	25	13.5	124	80	84	Rp 1/2	1.00	1.1	0.0026
COMFORT 15-14 BDT PM DACH
COMFORT 15-14 BDT PM CN

Connections and Other Specifications

Connections: Rp 1/2. Various fittings available (see page 36).
System Pressure: Max. 10 bar.
Liquid Temperature: 2-95 °C (TF 95).
IP Class: IP44.

COMFORT 15-14 BDT PM GB

Performance Curve Description

A performance curve graph is shown, plotting Head (H) in kPa and meters against Flow Rate (Q) in m³/h and l/s.

Electrical Data

Voltage: 1 x 230 V, 50/60 Hz
P1 [W]: 7
I1/1 [A]: 0.07

Dimensions and Specifications

Pump type	L1	H1	H2	H3	B1	B2	G	Net [kg]	Gross [kg]	Shipping volume [m³]
COMFORT 15-14 BDT PM GB	80	25	13.5	124	80	84	Rp 1/2	1.00	1.1	0.0026

Connections and Other Specifications

Connections: Rp 1/2. Various fittings available (see page 36).
System Pressure: Max. 10 bar.
Liquid Temperature: 2-95 °C (TF 95).
IP Class: IP44.

COMFORT 15-14 BX PM, COMFORT 15-14 BX PM DACH

Performance Curve Description

A performance curve graph is shown, plotting Head (H) in kPa and meters against Flow Rate (Q) in m³/h and l/s.

Electrical Data

Voltage: 1 x 230 V, 50/60 Hz
P1 [W]: 7
I1/1 [A]: 0.07

Dimensions and Specifications

Pump type	L1	H1	H2	H3	B1	B2	G	Net [kg]	Gross [kg]	Shipping volume [m³]
COMFORT 15-14 BX PM	140	25	21	119	79.5	84	G 1	1.35	1.51	0.0034
COMFORT 15-14 BX PM DACH	140	25	21	119	79.5	84	G 1	1.35	1.51	0.0034

Connections and Other Specifications

Connections: G 1.
System Pressure: Max. 10 bar.
Liquid Temperature: 2-95 °C (TF 95).
IP Class: IP44.

COMFORT 15-14 BXA PM, 15-14 BXA PM DACH

Performance Curve Description

A performance curve graph is shown, plotting Head (H) in kPa and meters against Flow Rate (Q) in m³/h and l/s.

Electrical Data

Voltage: 1 x 230 V, 50/60 Hz
P1 [W]: 7
I1/1 [A]: 0.07

Dimensions and Specifications

Pump type	L1	H1	H2	H3	B1	B2	G	Net [kg]	Gross [kg]	Shipping volume [m³]
COMFORT 15-14 BXA PM	140	25	21	129	79.5	84	G 1	1.35	1.51	0.0034
COMFORT 15-14 BXA PM DACH	140	25	21	129	79.5	84	G 1	1.35	1.51	0.0034

Connections and Other Specifications

Connections: G 1.
System Pressure: Max. 10 bar.
Liquid Temperature: 2-95 °C (TF 95).
IP Class: IP44.

COMFORT 15-14 BXDT PM, 15-14 BXU PM DACH

Performance Curve Description

A performance curve graph is shown, plotting Head (H) in kPa and meters against Flow Rate (Q) in m³/h and l/s.

Electrical Data

Voltage: 1 x 230 V, 50/60 Hz
P1 [W]: 7
I1/1 [A]: 0.07

Dimensions and Specifications

Pump type	L1	H1	H2	H3	B1	B2	G	Net [kg]	Gross [kg]	Shipping volume [m³]
COMFORT 15-14 BXDT PM	140	25	21	124	79.5	84	G 1	1.2	1.3	0.0026
COMFORT 15-14 BXDT PM DACH	140	25	21	124	79.5	84	G 1	1.2	1.3	0.0026

Connections and Other Specifications

Connections: G 1.
System Pressure: Max. 10 bar.
Liquid Temperature: 2-95 °C (TF 95).
IP Class: IP44.

COMFORT 15-14 BXDT PM GB

Performance Curve Description

A performance curve graph is shown, plotting Head (H) in kPa and meters against Flow Rate (Q) in m³/h and l/s.

Electrical Data

Voltage: 1 x 230 V, 50/60 Hz
P1 [W]: 7
I1/1 [A]: 0.07

Dimensions and Specifications

Pump type	L1	H1	H2	H3	B1	B2	G	Net [kg]	Gross [kg]	Shipping volume [m³]
COMFORT 15-14 BXDT PM GB	140	25	21	124	79.5	84	G 1	1.2	1.3	0.0026

Connections and Other Specifications

Connections: G 1.
System Pressure: Max. 10 bar.
Liquid Temperature: 2-95 °C (TF 95).
IP Class: IP44.

COMFORT 15-14 B PM GB

Performance Curve Description

A performance curve graph is shown, plotting Head (H) in kPa and meters against Flow Rate (Q) in m³/h and l/s.

Electrical Data

Voltage: 1 x 230 V, 50/60 Hz
P1 [W]: 7
I1/1 [A]: 0.07

Dimensions and Specifications

Pump type	L1	H1	H2	H3	B1	B2	G	Net [kg]	Gross [kg]	Shipping volume [m³]
COMFORT 15-14 B PM GB	80	25	13.5	119	79.5	84	Rp 1/2	1.00	1.12	0.0026

Connections and Other Specifications

Connections: Rp 1/2. Various fittings available (see page 36).
System Pressure: Max. 10 bar.
Liquid Temperature: 2-95 °C (TF 95).
IP Class: IP44.

COMFORT 15-14 BA PM GB

Performance Curve Description

A performance curve graph is shown, plotting Head (H) in kPa and meters against Flow Rate (Q) in m³/h and l/s.

Electrical Data

Voltage: 1 x 230 V, 50/60 Hz
P1 [W]: 7
I1/1 [A]: 0.07

Dimensions and Specifications

Pump type	L1	H1	H2	H3	B1	B2	G	Net [kg]	Gross [kg]	Shipping volume [m³]
COMFORT 15-14 BA PM GB	80	25	13.5	129	79.5	84	Rp 1/2	1.00	1.12	0.0026

Connections and Other Specifications

Connections: Rp 1/2. Various fittings available (see page 36).
System Pressure: Max. 10 bar (145 psi).
Liquid Temperature: 2-95 °C (TF 95).
IP Class: IP44.

COMFORT 15-14 BX PM GB

Performance Curve Description

A performance curve graph is shown, plotting Head (H) in kPa and meters against Flow Rate (Q) in m³/h and l/s.

Electrical Data

Voltage: 1 x 230 V, 50/60 Hz
P1 [W]: 7
I1/1 [A]: 0.07

Dimensions and Specifications

Pump type	L1	H1	H2	H3	B1	B2	G	Net [kg]	Gross [kg]	Shipping volume [m³]
COMFORT 15-14 BX PM GB	140	25	21	119	79.5	84	G 1	1.35	1.51	0.0034

Connections and Other Specifications

Connections: G 1.
System Pressure: Max. 10 bar (145 psi).
Liquid Temperature: 2-95 °C (TF 95).
IP Class: IP44.

COMFORT 15-14 BXA PM GB

Performance Curve Description

A performance curve graph is shown, plotting Head (H) in kPa and meters against Flow Rate (Q) in m³/h and l/s.

Electrical Data

Voltage: 1 x 230 V, 50/60 Hz
P1 [W]: 7
I1/1 [A]: 0.07

Dimensions and Specifications

Pump type	L1	H1	H2	H3	B1	B2	G	Net [kg]	Gross [kg]	Shipping volume [m³]
COMFORT 15-14 BXA PM GB	140	25	21	129	79.5	84	G 1	1.35	1.51	0.0034

Connections and Other Specifications

Connections: G 1.
System Pressure: Max. 10 bar (145 psi).
Liquid Temperature: 2-95 °C (TF 95).
IP Class: IP44.

COMFORT 10-16 PM B5/LC

Performance Curve Description

A performance curve graph is shown, plotting Head (H) in meters and feet against Flow Rate (Q) in US GPM and m³/h.

Electrical Data

Voltage: 1 x 115/230 V, 50/60 Hz
P1 [W (Hp)]: 6 (0.008)
I1/1 [A]: 0.07

Dimensions and Specifications

Pump type	L1	H1	H2	H3	B1	B2	G	Net [lb]	Gross [lb]	Shipping volume [ft³]
COMFORT 10-16 PM B5/LC	3 1/8	1	1/2	4 3/4	3	3 1/3	1/2" sweat	2.6	2.9	0.116

Connections and Other Specifications

Connections: 1/2" sweat.
System Pressure: 145 psi.
Liquid Temperature: 2-80 °C / 35-176 °F.
IP Class: IP44.

COMFORT 10-16 PM BN5/LC

Performance Curve Description

A performance curve graph is shown, plotting Head (H) in meters and feet against Flow Rate (Q) in US GPM and m³/h.

Electrical Data

Voltage: 1 x 115/230 V, 50/60 Hz
P1 [W (Hp)]: 6 (0.008)
I1/1 [A]: 0.07

Dimensions and Specifications

Pump type	L1	H1	H2	H3	B1	B2	G	Net [lb]	Gross [lb]	Shipping volume [ft³]
COMFORT 10-16 PM BN5/LC	3 1/8	1	1/2	4 3/4	3	3 1/3	1/2" NPT	2.6	2.9	0.116

Connections and Other Specifications

Connections: 1/2" NPT.
System Pressure: Max. 145 psi.
Liquid Temperature: 2-80 °C / 35-176 °F.
IP Class: IP44.

COMFORT 10-16 T PM BU/LC

Performance Curve Description

A performance curve graph is shown, plotting Head (H) in meters and feet against Flow Rate (Q) in US GPM and m³/h.

Electrical Data

Voltage: 1 x 115/230 V, 50/60 Hz
P1 [W (Hp)]: 6 (0.008)
I1/1 [A]: 0.07

Dimensions and Specifications

Pump type	L1	H1	H2	H3	B1	B2	G	Net [lb]	Gross [lb]	Shipping volume [ft³]
COMFORT 10-16 T PM BU/LC	4 1/3	1	7/8	5	3	3 1/3	1 1/4" NPSM	3.4	3.8	0.152

Connections and Other Specifications

Connections: 1/2" NPT.
System Pressure: Max. 145 psi.
Liquid Temperature: 2-80 °C / 35-176 °F.
IP Class: IP44.

COMFORT 10-16 PM BU/LC

Performance Curve Description

A performance curve graph is shown, plotting Head (H) in meters and feet against Flow Rate (Q) in US GPM and m³/h.

Electrical Data

Voltage: 1 x 115/230 V, 50/60 Hz
P1 [W (Hp)]: 6 (0.008)
I1/1 [A]: 0.07

Dimensions and Specifications

Pump type	L1	H1	H2	H3	B1	B2	G	Net [lb]	Gross [lb]	Shipping volume [ft³]
COMFORT 10-16 PM BU/LC	4 1/3	1	7/8	5 1/4	3	3 1/3	1 1/4" NPSM	3.4	3.8	0.152

Connections and Other Specifications

Connections: 1 1/4" NPSM.
System Pressure: Max. 145 psi.
Liquid Temperature: 2-80 °C / 35-176 °F.
IP Class: IP44.

COMFORT 10-16 DT PM BU/LC

Performance Curve Description

A performance curve graph is shown, plotting Head (H) in meters and feet against Flow Rate (Q) in US GPM and m³/h.

Electrical Data

Voltage: 1 x 115/230 V, 50/60 Hz
P1 [W (Hp)]: 6 (0.008)
I1/1 [A]: 0.07

Dimensions and Specifications

Pump type	L1	H1	H2	H3	B1	B2	G	Net [lb]	Gross [lb]	Shipping volume [ft³]
COMFORT 10-16 DT PM BU/LC	4 1/3	1	7/8	4 7/8	3	3 1/3	1 1/4" NPSM	3.4	3.8	0.152

Connections and Other Specifications

Connections: 1 1/4" NPSM.
System Pressure: Max. 145 psi.
Liquid Temperature: 2-80 °C / 35-176 °F.
IP Class: IP44.

COMFORT 10-16 A PM B5/LC

Performance Curve Description

A performance curve graph is shown, plotting Head (H) in meters and feet against Flow Rate (Q) in US GPM and m³/h.

Electrical Data

Voltage: 1 x 115/230 V, 50/60 Hz
P1 [W (Hp)]: 6 (0.008)
I1/1 [A]: 0.07

Dimensions and Specifications

Pump type	L1	H1	H2	H3	B1	B2	G	Net [lb]	Gross [lb]	Shipping volume [ft³]
COMFORT 10-16 A PM B5/LC	3 1/8	1	1/2	5 1/4	3	3 1/3	1/2" sweat	2.6	2.9	0.116

Connections and Other Specifications

Connections: 1/2" sweat.
System Pressure: Max. 145 psi.
Liquid Temperature: 2-80 °C / 35-176 °F.
IP Class: IP44.

COMFORT 10-16 A PM BN5/LC

Performance Curve Description

A performance curve graph is shown, plotting Head (H) in meters and feet against Flow Rate (Q) in US GPM and m³/h.

Electrical Data

Voltage: 1 x 115/230 V, 50/60 Hz
P1 [W (Hp)]: 6 (0.008)
I1/1 [A]: 0.07

Dimensions and Specifications

Pump type	L1	H1	H2	H3	B1	B2	G	Net [lb]	Gross [lb]	Shipping volume [ft³]
COMFORT 10-16 A PM BN5/LC	3 1/8	1	1/2	5 1/4	3	3 1/3	1/2" NPT	2.6	2.9	0.116

Connections and Other Specifications

Connections: 1/2" NPT.
System Pressure: Max. 145 psi.
Liquid Temperature: 2-80 °C / 35-176 °F.
IP Class: IP44.

COMFORT 10-16 A PM BU/LC

Performance Curve Description

A performance curve graph is shown, plotting Head (H) in meters and feet against Flow Rate (Q) in US GPM and m³/h.

Electrical Data

Voltage: 1 x 115/230 V, 50/60 Hz
P1 [W (Hp)]: 6 (0.008)
I1/1 [A]: 0.07

Dimensions and Specifications

Pump type	L1	H1	H2	H3	B1	B2	G	Net [lb]	Gross [lb]	Shipping volume [ft³]
COMFORT 10-16 A PM BU/LC	4 1/3	1	7/8	5 1/4	3	3 1/3	1 1/4" NPSM	3.4	3.8	0.152

Connections and Other Specifications

Connections: 1 1/4" NPSM.
System Pressure: Max. 145 psi.
Liquid Temperature: 2-80 °C / 35-176 °F.
IP Class: IP44.

7. Product Numbers

This section lists product numbers for various COMFORT models across different market regions.

COMFORT, International, DACH, GB, CN, RU, 50/60 Hz

Market region	Pump type	Product number	Port-to-port length [mm]	Connection	Plug	Isolating valve	Non-return valve	Data sheet
International	COMFORT 15-14 B PM	97916771	80 mm	Rp 1/2				page 15
	COMFORT 15-14 BA PM	97916757						page 16
	COMFORT 15-14 BDT PM	99812350						page 17
	COMFORT 15-14 BX PM	97916772			•			page 19
	COMFORT 15-14 BXA PM	97916749				•		page 20
	COMFORT 15-14 BXDT PM	99831281				•		page 21
Germany Austria Switzerland (D-A-CH)	COMFORT 15-14 B PM DACH	97989265	140 mm	G 1				page 15
	COMFORT 15-14 BA PM DACH	99302331						page 16
	COMFORT 15-14 BU PM DACH	99831284						page 17
	COMFORT 15-14 BX PM DACH	97989266			•			page 19
	COMFORT 15-14 BXA PM DACH	99302332				•		page 20
	COMFORT 15-14 BXU PM DACH	99831285				•		page 21
Great Britain (GB)	COMFORT 15-14 B PM GB	99164484	80 mm	Rp 1/2				page 23
	COMFORT 15-14 BA PM GB	99164487						page 24
	COMFORT 15-14 BDT PM GB	99831287			•			page 18
	COMFORT 15-14 BX PM GB	99164486			•	•		page 25
	COMFORT 15-14 BXA PM GB	99164488			•	•		page 26
	COMFORT 15-14 BXDT PM GB	99831289			•	•		page 22
China (CN)	COMFORT 15-14 B PM CN	98485504	80 mm	Rp 1/2				page 15
	COMFORT 15-14 BA PM CN	98485557						page 16
	COMFORT 15-14 BDT PM CN	99831292			•			page 17
Russia (RU)	COMFORT 15-14 B PM RU	99302358	80 mm	Rp 1/2				page 15

COMFORT, USA, 50/60 Hz

Market region	Pump type	Product number	Port-to-port length [inches]	Connection	Line cord	Isolating valve	Non-return valve	Data sheet
USA ★	COMFORT 10-16 PM B5/LC	98420206	3 1/8"	1/2" NPT		•		page 27
	COMFORT 10-16 PM BN5/LC	98420210				•		page 28
	COMFORT 10-16 T PM BU/LC	99412493	4 1/3"	1 1/4" NPSM		•	•	page 29
	COMFORT 10-16 PM BU/LC	98420221				•	•	page 30
	COMFORT 10-16 DT PM BU/LC	99812354				•	•	page 31
	COMFORT 10-16 A PM B5/LC	98420222	3 1/8"	1/2" NPT		•		page 31
	COMFORT 10-16 A PM BN5/LC	98420223				•		page 33
	COMFORT 10-16 A PM BU/LC	98420224	4 1/3"	1 1/4" NPSM		•	•	page 34

★ Lead-free pump housing

8. Accessories

Fittings

Fitting	Description	Connection	Material	Product number
	Non-return valve	1/2	Brass	96433904
	Isolating valve	1/2	Brass	96433905
	Fittings with integrated non-return valve and isolating valve	G 1 x Rp 1/2 int.	Brass	00ID8748
	Union set	G 1 1/4 x 15 mm int. R 1/2 ext.	Brass	96433907
	Union set	G 1 1/4 x Rp 3/4 int.	Brass	96433908
	Union set	G 1 1/4 x Rp 1/2 int. R 3/4 ext.	Brass	96433909
	Venting flange	Flange	PP	96433906
	Bulk COMFORT PM plug (80 pcs.)	Union nut Hose	Brass PE	98890117

Spare Parts

Description	Product number
Spare plug for COMFORT PM	98685259

9. Grundfos Product Center

The Grundfos Product Center is an online tool for selecting and sizing pumps. It provides access to comprehensive product information, including performance curves, technical specifications, dimensional drawings, spare parts, and documentation.

URL: http://product-selection.grundfos.com

Key Features:

Find Products: Search by product number or name.
Sizing: Tools to size pumps based on application data.
Catalogue: Access to the full Grundfos product catalog.
Replacement: Find replacement products, with information on price, energy consumption, and lifecycle cost.
Liquids: Find pumps suitable for special liquids.
Downloads: Access installation and operating instructions, data booklets, and service instructions in PDF format.

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