536913 1 Armstrong Compass Wet Rotor Circulator Brochure User Manual

536912 1 Armstrong Compass Wet-Rotor Circulator Brochure 536912_1_Armstrong Compass Wet-Rotor Circulator Brochure

User Manual: Pump 536913 1 Armstrong Compass Wet-Rotor Circulator Brochure

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etl

file no: 10.19

date: february 2014

supersedes: 10.19

date: july 2013

solution outline

tm

complies with

eei ≤ 0.22

compass

high-eciency

wet-rotor circulators

*

our choice of

circulator has

a surprisingly

large eect

on your building project.

the right circulator will generate

energy savings for years. Ad-

vanced variable speed technology

increases circulator eciency; even though

the circulator and motor are small, the en-

ergy savings can add up. Homeowners will

appreciate the reduced operating costs and

reduced carbon footprint.

For contractors, a well-designed circulator

is easy to install and will reduce or eliminate

customer complaints. For wholesalers and

contractors, a circulator that covers a broad

range of operating requirements makes the

selection process easier, leaving more time

for serving customers.

Inventory costs are also important. The right

choice of circulator lets you serve more cus-

tomers and installations with only one model.

Keeping fewer circulator models on your

shelf, or in your trucks, cuts your inventory

investment and your operating costs.

Design Envelope is a revolutionary technology

pioneered by Armstrong that oers simpli-

fied circulator selection, lowest installed

cost, expanded application flexibility and optimized

energy eciency. Armstrong Design Envelope technol-

ogy, previously oered in Armstrong pumps from one

horsepower to 450 hp, is now available in Armstrong

circulators. Design Envelope technology augments the

value of Armstrong circulators through increased oper-

ating range and sensorless, demand-based control.

up to 70%

energy savings

for details on

• DesignEnvelopeselections

• Demand-basedvariablespeedoperation

• Sensorlesstechnology

please see the Design Envelope solution outline

(file no. 100.11)

kWh

Easy access

for wiring

the terminal

block

Responding to the

need for a better cir-

culator, Armstrong

oers compass, an advanced

solution that benefits everyone

involved in a heating system

project. By selecting the right

circulator, wholesalers, home-

owners, and contractors can

all come out ahead.

compass circulators incorporate advanced func-

tionality to assist with your construction and service

projects and improve the long-term enjoyment of the

building spaces you help create.

Easy sizing and selection of the compass circulator simplifies

your job as a wholesaler or contractor and reduces your

inventory requirements.

In the field, the front mounted terminal block reduces

installation time.

The compass “auto” algorithm intelligently adapts to system

demand, so you get the right setup every time and your cus-

tomers enjoy comfortable room temperatures.

Ultimately, compass circulators provide reliable performance,

backed by a two-year warranty, with noticeable reductions in

energy consumption and operating costs.

key features

key benefits

Broad operating range, producing up

to 20 feet of head and 20 USgpm flow

Design Envelope technology providing

sensorless demand-based control

Ecient ecm motor technology and

intelligent variable speed operation

Easy to read display

Eight dierent modes of operation provid-

ing versatility to cover the performance

of a wide range of fixed speed circulators

Large wiring chamber and front-

mounted terminal block

buffalo

toronto

manchester

bangalore

shanghai

#59, first floor, 3rd main

margosa road, malleswaram

bangalore, india

560 003

+91 (0) 80 4906 3555

wenlock way

manchester

united kingdom

m12 5jl

+44 (0) 8444 145 145

93 east avenue

north tonawanda, new york

u.s.a.

14120-6594

+1 716 693 8813

23 bertrand avenue

toronto, ontario

canada

m1l 2p3

+1 416 755 2291

no. 1619 hu hang road, xi du township

feng xian district, shanghai

p.r.c.

201401

+86 21 3756 6696

birmingham

heywood wharf, mucklow hill

halesowen, west midlands

united kingdom

b62 8dj

+44 (0) 8444 145 145

tm

For more information, contact

your Armstrong representative

or visit us at:

armstrongfluidtechnology.com/

ContactUs

power range

max flow rate

max head pressure

model

performance

5W-45W

20 USgpm

20 ft

cast iron: compass 20-20ci

item no: 180203-606

*stainless steel: compass 20-20ss

item no: 180203-607

installation &

operating instructionsArmstrong compass

8

auto (unde r fl oor heating and two-pipe (parallel) systems)

auto function observes and adjusts the pump performance

to satisfy the system requirement. The pump adapts to the

system over time, it is recommended to leave the pump in

the auto position at least one week before selecting other

pump settings.

Changing from recommended (auto) to alternative

pump setting:

Heating systems are 'slow' systems that cannot be set to the

optimum operation within minutes or hours.

If the recommended pump setting does not give the desired

comfort in some areas of the building, change the pump setting

to the shown alternative.

See pump settings and pump performance (section 10) for

more details.

7.0 systems with bypass valve between

flow and return pipes

7.1 purpose of bypass valve

erential pressure bypass valve is to ensure

that the heat from the boiler can be distributed when all valves

in the underfl oor-heating circuits and/or thermostatic radiator

valves are closed. These valves were commonly applied in multi

zone systems with traditional fi xed speed pumps.

eren-

tial bypass valve when used in Auto or proportional pressure

modes, because the circulator will reduce speed when the

valves in the system close and the heat demand is reduced.

If you are servicing an existing system with a bypass valve

and you are replacing a fi xed speed circulator with a Compass

circulator, there is no need to remove the bypass valve.

8.0 start-up

8.1 before start-up

Fill the system with liquid and properly vent the system before

starting the pump. The required minimum inlet pressure in

relation to liquid temperature must be available at the pump

inlet (see section 3).

8.2 venting the pump

Even with system vented, air may be still be present in the

pump. The air in the pump may cause noise but the noise

should cease after a few minutes running.

The venting process can be shortened by setting the pump to

run at speed III for a short period of time (20 seconds).

Once the pump is vented (the noise has ceased), set the pump

mode according to the recommendations (see section 7).

caution

The pump must not run dry.

9.0 pump settings and pump performance

9.1 relation between pump setting

and pump performance

fi g. 10 Pump setting in relation to pump performance

pc1

pc2

pc4 pc3

pc2 pc1

pc3

pc4

iii

ii

head - ft.wg.

flow - usgpm

i

i

ii

iii

20

22

24

20 22

18

18

16

16

14

14

12

12

10

10

8

8

4

4

6

6

2

2

0

0

Armstrong Compass performance curves

speed pressure curve

auto

auto

eight mode options

auto Circulator adapts to sys-

tem demand over time.

pc1 Lowest proportional-

pressure curve

pc2 Highest proportional-

pressure curve

pc3 Lowest constant-

pressure curve

pc4 Highest constant

pressure curve

iii Highest constant speed

ii Medium constant speed

i Lowest constant speed

armstrongfluidtechnology.com

armstrong fluid technology

established 1934

140 mm216 mm140 mm

254 mm

pantone 1795c

Box colour: natural cardboard brown

5

Circulator must be installed with motor shaft in

10-box-501

horizontal position and the electrical terminal box not on the top.

optional

(volute rotated)

recommended incorrect

b

a

c

a= 6.375"

b = 7.08"

c = 5.31"

compass performance curves