ACV UPMXXL 25-120 Pump Control Instructions

: June 13, 2024
: ACV

Table of Contents

Instructions
General
- INTRODUCTION
- CONTENTS
PREPARATION
PUMP PARAMETER SETTINGS
Customer Service
References
Read User Manual Online (PDF format)
Download This Manual (PDF format)

ACV UPMXXL 25-120 Pump Control

ACV UPMXXL 25-120 Pump Control

Instructions

When replacing any part on this appliance, use only spare parts that you can be assured conform to the safety and performance specification that we require. Do not use reconditioned or copy parts that have not been clearly authorised by ACV.
For the very latest copy of literature for specification and maintenance practices visit our website www/acv/com/gb where you can download the relevant information in PDF format.

General

INTRODUCTION

This kit is suitable for the following boilers: Evo S range of boilers utilising the Grundfos UPMXXL 25-120 pump.
This manual explains how to wire the pump leads to the installer wiring connections and determine the pump settings within the boiler control.
The Pump is powered by a 230 V auxillary supply within the boiler, and controlled by a PWM signal.
Item Description

Table 1 – Evo S from ACV

Evo S	Boiler Size
Evo S	40
Evo S	60
Evo S	70
Evo S	80
Evo S	100
Evo S	120

PREPARATION

Install the Pump Control kit as follows:

WARNING: Be careful when you install electrical connections.
Electric shock can cause serious injury or death and can cause damage to equipment.

Make sure that the electrical power supply to the boiler is set to OFF. For safe electrical isolation refer to Gas Safe technical bulletin 118. All work must be carried out by a competent person.
For access to the control box (refer to manual ACV Evo S INSTALLATION, COMMISSIONING AND SERVICING INSTRUCTIONS Frame 4.6.1).

Table 2 – Evo S no separation

Boiler model	Flow rate Q (m³/hr) ∆t 20° C	Head (m)	Pump used
Evo S 40	1.72	4.58	Grundfos UPMXXL 25-120
Evo S 60	2.59	6.01
Evo S 70	3.02	5.81
Evo S 80	3.45	4.89
Evo S 100	4.28	7.29
Evo S 120	5.14	7.75

INSTALLATION

Install the pump electrical connections as follows (refer to Figure 1).

Mains power connections 13 earth, 14 live and 15 neutral.
PWM connections 37 ground (Blue) and 38 PWM (Brown) signal, the remaining Black wire should be taped back or removed.

PUMP CONFIGURATION

The following parameters configure the PWM output to control a boiler pump.

Table 3 – Evo S PWM output

Line No.	Parameter	Settings
6085	Function output P1	Boiler pump Q1
6086	Signal logic output P1	Inverted

PUMP PERFORMANCE

For pump performance refer to Figure 2 below.

PUMP PERFORMANCE

PUMP PARAMETER SETTINGS

The following parameters configure how the pump speed is to be controlled.
Table 4 – Evo S pump speed control

Line No.	Parameter	Settings
2320	Pump modulation	Burner output
2321	Starting speed	100%

The following parameters determine the PWM values to achieve the flow rates for each boiler model.

Table 5 – Cascade Boiler with LLH

Boiler Model| Line No.| Parameter| Setting| Flow Reading (8366) l/m
---|---|---|---|---
40| 2322| Pump speed min| 69| 9.5
| 2323| Pump speed max| 95| 28.7
| 2505| Threshold flowDetect| 8.3|
| | | |
60| 2322| Pump speed min| 69| 19.2
| 2323| Pump speed max| 95| 39.3
| 2505| Threshold flowDetect| 16.7|
| | | |
70| 2322| Pump speed min| 69| 19.2
| 2323| Pump speed max| 95| 50.0
| 2505| Threshold flowDetect| 16.7|
| | | |
80| 2322| Pump speed min| 59| 38.3
| 2323| Pump speed max| 95| 69.3
| 2505| Threshold flowDetect| 35.0|
| | | |
100| 2322| Pump speed min| 69| 38.3
| 2323| Pump speed max| 95| 71.7
| 2505| Threshold flowDetect| 35.0|
| | | |
120| 2322| Pump speed min| 80| 50.0
| 2323| Pump speed max| 95| 86.0
| 2505| Threshold flow Detect| 45.8|

Notes

Table 6 – Cascade Boiler with PHEX

Boiler Model| Line No.| Parameter| Setting| Flow Reading (8366) l/m
---|---|---|---|---
40| 2322| Pump speed min| 69| 9.5
| 2323| Pump speed max| 95| 28.7
| 2505| Threshold flowDetect| 8.3|
| | | |
60| 2322| Pump speed min| 69| 19.2
| 2323| Pump speed max| 95| 39.3
| 2505| Threshold flowDetect| 16.7|
| | | |
70| 2322| Pump speed min| 80| 19.2
| 2323| Pump speed max| 95| 50.0
| 2505| Threshold flowDetect| 16.7|
| | | |
80| 2322| Pump speed min| 69| 38.3
| 2323| Pump speed max| 95| 69.3
| 2505| Threshold flowDetect| 35.0|
| | | |
100| 2322| Pump speed min| 80| 38.3
| 2323| Pump speed max| 95| 71.7
| 2505| Threshold flowDetect| 35.0|
| | | |
120| 2322| Pump speed min| 85| 50.0
| 2323| Pump speed max| 95| 86.0
| 2505| Threshold flow Detect| 45.8|

Table 7 – Standalone Boiler

Boiler Model| Line No.| Parameter| Setting| Flow Reading (8366) l/m
---|---|---|---|---
40| 2322| Pump speed min| | 9.5
| 2323| Pump speed max| | 28.7
| 2505| Threshold flow Detect| 8.3|
| | | |
60| 2322| Pump speed min| | 19.2
| 2323| Pump speed max| | 39.3
| 2505| Threshold flowDetect| 16.7|
| | | |
70| 2322| Pump speed min| | 19.2
| 2323| Pump speed max| | 50.0
| 2505| Threshold flowDetect| 16.7|
| | | |
80| 2322| Pump speed min| | 38.3
| 2323| Pump speed max| | 69.3
| 2505| Threshold flowDetect| 35.0|
| | | |
100| 2322| Pump speed min| | 38.3
| 2323| Pump speed max| | 71.7
| 2505| Threshold flowDetect| 35.0|
| | | |
120| 2322| Pump speed min| | 50.0
| 2323| Pump speed max| | 86.0
| 2505| Threshold flowDetect| 45.8|

The process to determine the settings for a modulating boiler pump is dependent upon the hydraulic properties of the installation. For setting of the minimum pump speed the worst-case flow rate of the system should be set, this must be above the minimum flow rate allowed by the boiler model. This will ensure that the minimum speed setting cannot result in a flow rate lower than the minimum flow rate for the boiler model.
The table above shows the initial settings, these can then be adjusted to ensure that the system flow meets the boiler model requirement. The actual value of the flow through the boiler can be read from the boiler HMI under ‘Diagnostics heat generation’ 8366, also by pressing the ‘I’ information button. The value is shown in l/m. So final adjustments can be made to ensure compliance

Customer Service

ACV U.K. Limited
St. David’s Business Park,
Dalgety Bay
Fife, Scotland
KY11 9PF
Tel: 0044 (0)1383 820100
www.acv.com/gb
ACV pursues a policy of continuing improvement in the design and performance of its products. The right is therefore reserved to vary specification without notice.